/**
 * Pepitiva Biolabs — Design System
 * 
 * Performance:
 * - Zero layout shifts (explicit dimensions, no FOUT)
 * - GPU-accelerated animations (transform/opacity only)
 * - Minimal repaints (contain: layout)
 * - Mobile-first (smallest CSS parsed first)
 * 
 * Paleta extraída da identidade visual:
 * Azul escuro (confiança/ciência) + Azul claro (inovação) + Branco (pureza)
 */

/* ══════════════════════════════════════════════════════════
   DESIGN TOKENS
   ══════════════════════════════════════════════════════════ */
:root {
    /* Cores Primárias */
    --c-blue-950: #071a2f;
    --c-blue-900: #0a2540;
    --c-blue-800: #0f3460;
    --c-blue-700: #164e8a;
    --c-blue-600: #1d6ab5;
    --c-blue-500: #2563eb;
    --c-blue-400: #4a8af5;
    --c-blue-300: #7cb3f8;
    --c-blue-200: #b3d4fc;
    --c-blue-100: #dbeafe;
    --c-blue-50:  #eff6ff;

    /* Acentos */
    --c-cyan-500: #06b6d4;
    --c-cyan-400: #22d3ee;
    --c-green-500: #25d366;
    --c-green-600: #1da851;

    /* Neutros */
    --c-white:    #ffffff;
    --c-gray-50:  #f8fafc;
    --c-gray-100: #f1f5f9;
    --c-gray-200: #e2e8f0;
    --c-gray-300: #cbd5e1;
    --c-gray-400: #94a3b8;
    --c-gray-500: #64748b;
    --c-gray-600: #475569;
    --c-gray-700: #334155;
    --c-gray-800: #1e293b;
    --c-gray-900: #0f172a;

    /* Semânticas */
    --c-primary:    var(--c-blue-500);
    --c-primary-dk: var(--c-blue-700);
    --c-primary-lt: var(--c-blue-100);
    --c-surface:    var(--c-white);
    --c-surface-2:  var(--c-gray-50);
    --c-text:       var(--c-gray-900);
    --c-text-2:     var(--c-gray-600);
    --c-text-3:     var(--c-gray-400);
    --c-border:     var(--c-gray-200);

    /* Tipografia */
    --ff-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --ff-body:    'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --fs-xs:  0.75rem;
    --fs-sm:  0.875rem;
    --fs-base: 1rem;
    --fs-md:  1.125rem;
    --fs-lg:  1.25rem;
    --fs-xl:  1.5rem;
    --fs-2xl: 2rem;
    --fs-3xl: 2.5rem;
    --fs-4xl: 3.25rem;
    --fs-5xl: 4rem;

    /* Espaçamento */
    --sp-xs:  0.25rem;
    --sp-sm:  0.5rem;
    --sp-md:  1rem;
    --sp-lg:  1.5rem;
    --sp-xl:  2rem;
    --sp-2xl: 3rem;
    --sp-3xl: 4rem;
    --sp-4xl: 6rem;
    --sp-5xl: 8rem;

    /* Layout */
    --max-w:    1200px;
    --header-h: 88px;
    --radius:   8px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Sombras */
    --shadow-sm:  0 1px 2px rgba(10,37,64,.06);
    --shadow-md:  0 4px 12px rgba(10,37,64,.08);
    --shadow-lg:  0 12px 32px rgba(10,37,64,.12);
    --shadow-xl:  0 20px 48px rgba(10,37,64,.16);

    /* Transições */
    --ease: cubic-bezier(.4, 0, .2, 1);
    --dur:  280ms;
}

/* ══════════════════════════════════════════════════════════
   RESET — Mínimo, sem bloat
   ══════════════════════════════════════════════════════════ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-h);
}

body {
    font-family: var(--ff-body);
    font-size: var(--fs-base);
    line-height: 1.6;
    color: var(--c-text);
    background: var(--c-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* Screen-reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    border: 0;
}

/* ══════════════════════════════════════════════════════════
   LAYOUT
   ══════════════════════════════════════════════════════════ */
.container {
    width: 100%;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 var(--sp-lg);
}

/* ══════════════════════════════════════════════════════════
   BUTTONS
   ══════════════════════════════════════════════════════════ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-sm);
    font-family: var(--ff-body);
    font-weight: 600;
    font-size: var(--fs-sm);
    line-height: 1;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    border: 2px solid transparent;
    transition: all var(--dur) var(--ease);
    white-space: nowrap;
}

.btn--primary {
    background: var(--c-primary);
    color: var(--c-white);
    border-color: var(--c-primary);
}
.btn--primary:hover {
    background: var(--c-primary-dk);
    border-color: var(--c-primary-dk);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn--ghost {
    background: transparent;
    color: var(--c-white);
    border-color: rgba(255,255,255,.35);
}
.btn--ghost:hover {
    background: rgba(255,255,255,.1);
    border-color: rgba(255,255,255,.6);
}

.btn--outline {
    background: transparent;
    color: var(--c-primary);
    border-color: var(--c-primary);
}
.btn--outline:hover {
    background: var(--c-primary);
    color: var(--c-white);
}

.btn--sm { padding: 0.5rem 1rem; font-size: var(--fs-xs); }
.btn--lg { padding: 0.9rem 2rem; font-size: var(--fs-base); }
.btn--success { background: #059669; border-color: #059669; color: var(--c-white); }

/* ══════════════════════════════════════════════════════════
   HEADER
   ══════════════════════════════════════════════════════════ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-h);
    z-index: 1000;
    background: var(--c-white);
    border-bottom: 1px solid var(--c-border);
    transition: box-shadow var(--dur) var(--ease);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
    border-bottom-color: transparent;
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: var(--sp-lg);
}

/* Brand */
.header__brand {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.header__logo {
    height: 60px;
    width: auto;
    object-fit: contain;
}

/* Navigation */
.header__nav {
    display: none;
}

.header__menu {
    display: flex;
    align-items: center;
    gap: var(--sp-xs);
}

.header__link {
    position: relative;
    padding: 0.5rem 0.75rem;
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--c-gray-600);
    border-radius: var(--radius);
    transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.header__link:hover,
.header__link.active {
    color: var(--c-primary);
    background: var(--c-blue-50);
}

/* Actions */
.header__actions {
    display: flex;
    align-items: center;
    gap: var(--sp-md);
}

.header__cart {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--c-gray-700);
    border-radius: 50%;
    transition: background var(--dur) var(--ease);
}
.header__cart:hover { background: var(--c-gray-100); }

.header__cart-count {
    position: absolute;
    top: 2px;
    right: 2px;
    min-width: 18px;
    height: 18px;
    font-size: 0.65rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--c-primary);
    color: var(--c-white);
    border-radius: 99px;
    padding: 0 4px;
}

.header__actions .btn--outline {
    display: none;
}

/* Mobile Toggle */
.header__toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    padding: 6px;
    border-radius: var(--radius);
    z-index: 1001;
}
.header__toggle:hover { background: var(--c-gray-100); }

.header__toggle-bar {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--c-gray-700);
    border-radius: 2px;
    transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
    transform-origin: center;
}

.header__toggle[aria-expanded="true"] .header__toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.header__toggle[aria-expanded="true"] .header__toggle-bar:nth-child(2) {
    opacity: 0;
}
.header__toggle[aria-expanded="true"] .header__toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Overlay */
.header__nav.is-open {
    display: flex;
    position: fixed;
    inset: 0;
    top: var(--header-h);
    background: var(--c-white);
    z-index: 999;
    padding: var(--sp-xl);
    animation: fadeSlideDown .3s var(--ease);
}

.header__nav.is-open .header__menu {
    flex-direction: column;
    align-items: stretch;
    gap: var(--sp-xs);
    width: 100%;
}

.header__nav.is-open .header__link {
    font-size: var(--fs-lg);
    padding: var(--sp-md);
    border-bottom: 1px solid var(--c-gray-100);
}

@keyframes fadeSlideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ══════════════════════════════════════════════════════════
   LANGUAGE SWITCHER
   ══════════════════════════════════════════════════════════ */
.lang-switcher {
    position: relative;
}

.lang-switcher__current {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: var(--radius);
    border: 1px solid var(--c-border);
    background: var(--c-white);
    color: var(--c-gray-700);
    font-size: var(--fs-xs);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--dur) var(--ease);
    white-space: nowrap;
}
.lang-switcher__current:hover {
    border-color: var(--c-blue-300);
    background: var(--c-blue-50);
}

.lang-flag {
    flex-shrink: 0;
    border-radius: 2px;
    box-shadow: 0 0 0 1px rgba(0,0,0,.08);
}

.lang-switcher__label {
    letter-spacing: .04em;
}

.lang-switcher__arrow {
    transition: transform var(--dur) var(--ease);
    color: var(--c-gray-400);
    flex-shrink: 0;
}

.lang-switcher__current[aria-expanded="true"] .lang-switcher__arrow {
    transform: rotate(180deg);
}

/* Dropdown */
.lang-switcher__dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 180px;
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    z-index: 1100;
    animation: langDropIn .2s var(--ease);
}

.lang-switcher__dropdown.is-open {
    display: block;
}

@keyframes langDropIn {
    from { opacity: 0; transform: translateY(-6px) scale(.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.lang-switcher__option a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    font-size: var(--fs-sm);
    color: var(--c-gray-700);
    transition: background var(--dur) var(--ease);
}
.lang-switcher__option a:hover {
    background: var(--c-blue-50);
}

.lang-switcher__option--active a {
    background: var(--c-blue-50);
    color: var(--c-primary);
    font-weight: 600;
}

.lang-switcher__name {
    flex: 1;
}

.lang-switcher__code {
    font-size: var(--fs-xs);
    font-weight: 700;
    color: var(--c-gray-400);
    letter-spacing: .06em;
}

.lang-switcher__option--active .lang-switcher__code {
    color: var(--c-primary);
}

/* Mobile: flags sempre visíveis, label escondido */
/* Lang switcher mobile is now in the main mobile breakpoint */

/* ══════════════════════════════════════════════════════════
   HERO
   ══════════════════════════════════════════════════════════ */
.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    padding: calc(var(--header-h) + var(--sp-3xl)) 0 var(--sp-3xl);
    background: linear-gradient(160deg, var(--c-blue-950) 0%, var(--c-blue-800) 40%, var(--c-blue-600) 100%);
    overflow: hidden;
    contain: layout;
}

/* BG Animated molecules — CSS-only, GPU-accelerated */
.hero__bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero__molecule {
    position: absolute;
    border-radius: 50%;
    opacity: .08;
    will-change: transform;
}

.hero__molecule--1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--c-cyan-400), transparent 70%);
    top: -100px;
    right: -100px;
    animation: heroFloat 12s ease-in-out infinite;
}

.hero__molecule--2 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--c-blue-300), transparent 70%);
    bottom: -80px;
    left: -80px;
    animation: heroFloat 16s ease-in-out infinite reverse;
}

.hero__molecule--3 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, var(--c-cyan-400), transparent 70%);
    top: 40%;
    left: 50%;
    animation: heroFloat 10s ease-in-out infinite 2s;
}

@keyframes heroFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33%      { transform: translate(20px, -30px) scale(1.05); }
    66%      { transform: translate(-15px, 20px) scale(.95); }
}

.hero__inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-3xl);
    align-items: center;
}

.hero__content {
    color: var(--c-white);
}

.hero__badge {
    display: inline-block;
    font-size: var(--fs-xs);
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    padding: 0.4rem 1rem;
    border: 1px solid rgba(255,255,255,.2);
    border-radius: 99px;
    color: var(--c-cyan-400);
    margin-bottom: var(--sp-lg);
    background: rgba(6,182,212,.08);
}

.hero__title {
    font-family: var(--ff-display);
    font-size: var(--fs-3xl);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -.02em;
    margin-bottom: var(--sp-lg);
}
.hero__title strong {
    color: var(--c-cyan-400);
}

.hero__subtitle {
    font-size: var(--fs-md);
    line-height: 1.65;
    color: rgba(255,255,255,.75);
    max-width: 540px;
    margin-bottom: var(--sp-xl);
}

.hero__cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-md);
    margin-bottom: var(--sp-2xl);
}

.hero__trust {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-lg);
}

.hero__trust-item {
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
    font-size: var(--fs-sm);
    font-weight: 600;
    color: rgba(255,255,255,.7);
}
.hero__trust-item svg {
    color: var(--c-cyan-400);
    flex-shrink: 0;
}

/* Flask visual — imagem real */
.hero__visual {
    display: none;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero__image {
    width: 100%;
    max-width: 580px;
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,.3));
    animation: heroImgFloat 6s ease-in-out infinite;
    will-change: transform;
}

@keyframes heroImgFloat {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-14px); }
}

/* ══════════════════════════════════════════════════════════
   SECTION HEADERS
   ══════════════════════════════════════════════════════════ */
.section-header {
    text-align: center;
    margin-bottom: var(--sp-3xl);
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

.section-header__tag {
    display: inline-block;
    font-size: var(--fs-xs);
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--c-primary);
    margin-bottom: var(--sp-sm);
    padding: 0.3rem 0.8rem;
    background: var(--c-blue-50);
    border-radius: 99px;
}

.section-header__title {
    font-family: var(--ff-display);
    font-size: var(--fs-2xl);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -.02em;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-md);
}

.section-header__desc {
    font-size: var(--fs-md);
    color: var(--c-text-2);
    line-height: 1.6;
}

/* ══════════════════════════════════════════════════════════
   PRODUCTS GRID
   ══════════════════════════════════════════════════════════ */
.products {
    padding: var(--sp-5xl) 0;
    background: var(--c-surface-2);
}

.products__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-lg);
}

.product-card {
    position: relative;
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: var(--sp-xl);
    transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
    contain: content;
}
.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--c-blue-200);
}

.product-card__tag {
    position: absolute;
    top: var(--sp-md);
    right: var(--sp-md);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    padding: 0.25rem 0.6rem;
    border-radius: 99px;
    background: var(--c-blue-500);
    color: var(--c-white);
}

.product-card__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--c-blue-50), var(--c-blue-100));
    border-radius: var(--radius);
    color: var(--c-primary);
    margin-bottom: var(--sp-lg);
}

.product-card__name {
    font-family: var(--ff-body);
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-sm);
}

.product-card__desc {
    font-size: var(--fs-sm);
    color: var(--c-text-2);
    line-height: 1.55;
    margin-bottom: var(--sp-lg);
}

.product-card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-xs);
    font-size: var(--fs-sm);
    font-weight: 700;
    color: var(--c-primary);
    transition: gap var(--dur) var(--ease);
}
.product-card__link:hover {
    gap: var(--sp-sm);
}

.products__cta {
    text-align: center;
    margin-top: var(--sp-3xl);
}

/* ══════════════════════════════════════════════════════════
   TRUST / DIFERENCIAIS
   ══════════════════════════════════════════════════════════ */
.trust {
    padding: var(--sp-5xl) 0;
}

.trust__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-lg);
}

.trust__card {
    text-align: center;
    padding: var(--sp-2xl) var(--sp-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--c-border);
    transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.trust__card:hover {
    border-color: var(--c-blue-200);
    box-shadow: var(--shadow-md);
}

.trust__card-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--sp-lg);
    background: var(--c-blue-50);
    border-radius: 50%;
    color: var(--c-primary);
}

.trust__card-title {
    font-family: var(--ff-body);
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-sm);
}

.trust__card-text {
    font-size: var(--fs-sm);
    color: var(--c-text-2);
    line-height: 1.6;
    max-width: 300px;
    margin: 0 auto;
}

/* ══════════════════════════════════════════════════════════
   AFFILIATES SECTION
   ══════════════════════════════════════════════════════════ */
.affiliates {
    padding: var(--sp-5xl) 0;
    background: linear-gradient(160deg, var(--c-blue-950), var(--c-blue-800));
    color: var(--c-white);
}

.affiliates__inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-3xl);
    align-items: center;
}

.affiliates .section-header__tag {
    background: rgba(6,182,212,.12);
    color: var(--c-cyan-400);
}

.affiliates__title {
    font-family: var(--ff-display);
    font-size: var(--fs-2xl);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--sp-lg);
}

.affiliates__text {
    font-size: var(--fs-md);
    color: rgba(255,255,255,.7);
    line-height: 1.65;
    margin-bottom: var(--sp-xl);
}

.affiliates__perks {
    display: flex;
    flex-direction: column;
    gap: var(--sp-md);
    margin-bottom: var(--sp-2xl);
}

.affiliates__perks li {
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
    font-size: var(--fs-base);
    font-weight: 600;
    color: rgba(255,255,255,.85);
}
.affiliates__perks svg {
    color: var(--c-cyan-400);
    flex-shrink: 0;
}

/* Chart visual */
.affiliates__visual {
    display: flex;
    justify-content: center;
}

.affiliates__chart {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    height: 200px;
    padding: var(--sp-lg);
    background: rgba(255,255,255,.05);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255,255,255,.08);
}

.affiliates__bar {
    width: 32px;
    height: var(--h);
    background: linear-gradient(180deg, var(--c-cyan-400), var(--c-blue-500));
    border-radius: var(--radius) var(--radius) 0 0;
    animation: barGrow 1s var(--ease) both;
}
.affiliates__bar:nth-child(1) { animation-delay: .1s; }
.affiliates__bar:nth-child(2) { animation-delay: .2s; }
.affiliates__bar:nth-child(3) { animation-delay: .3s; }
.affiliates__bar:nth-child(4) { animation-delay: .4s; }
.affiliates__bar:nth-child(5) { animation-delay: .5s; }
.affiliates__bar:nth-child(6) { animation-delay: .6s; }

@keyframes barGrow {
    from { height: 0; }
    to   { height: var(--h); }
}

/* ══════════════════════════════════════════════════════════
   FAQ
   ══════════════════════════════════════════════════════════ */
.faq {
    padding: var(--sp-5xl) 0;
    background: var(--c-surface-2);
}

.faq__list {
    max-width: 768px;
    margin: 0 auto;
}

.faq__item {
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    margin-bottom: var(--sp-md);
    background: var(--c-white);
    overflow: hidden;
    transition: border-color var(--dur) var(--ease);
}
.faq__item[open] {
    border-color: var(--c-blue-200);
}

.faq__question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--sp-md);
    cursor: pointer;
    padding: var(--sp-lg) var(--sp-xl);
    font-size: var(--fs-base);
    font-weight: 700;
    color: var(--c-blue-900);
    list-style: none;
    user-select: none;
}
.faq__question::-webkit-details-marker { display: none; }

.faq__chevron {
    flex-shrink: 0;
    transition: transform var(--dur) var(--ease);
    color: var(--c-gray-400);
}
.faq__item[open] .faq__chevron {
    transform: rotate(180deg);
    color: var(--c-primary);
}

.faq__answer {
    padding: 0 var(--sp-xl) var(--sp-lg);
}
.faq__answer p {
    font-size: var(--fs-sm);
    color: var(--c-text-2);
    line-height: 1.7;
}

/* ══════════════════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════════════════ */
.footer__newsletter {
    padding: var(--sp-3xl) 0;
    background: var(--c-blue-500);
    color: var(--c-white);
}

.footer__newsletter-inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-xl);
    align-items: center;
}

.footer__newsletter-title {
    font-family: var(--ff-display);
    font-size: var(--fs-xl);
    font-weight: 700;
}

.footer__newsletter-desc {
    font-size: var(--fs-sm);
    color: rgba(255,255,255,.8);
    margin-top: var(--sp-xs);
}

.footer__newsletter-form {
    display: flex;
    gap: var(--sp-sm);
}

.footer__newsletter-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid rgba(255,255,255,.25);
    border-radius: var(--radius);
    background: rgba(255,255,255,.12);
    color: var(--c-white);
    font-family: var(--ff-body);
    font-size: var(--fs-sm);
    outline: none;
    transition: border-color var(--dur) var(--ease);
}
.footer__newsletter-input::placeholder { color: rgba(255,255,255,.5); }
.footer__newsletter-input:focus { border-color: var(--c-white); }

.footer__newsletter-form .btn {
    background: var(--c-white);
    color: var(--c-primary);
    border-color: var(--c-white);
    font-weight: 700;
}
.footer__newsletter-form .btn:hover {
    background: var(--c-blue-50);
}

/* Footer main */
.site-footer {
    background: var(--c-blue-950);
    color: rgba(255,255,255,.7);
}

.footer__main {
    padding: var(--sp-3xl) 0;
}

.footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-2xl);
}

.footer__brand {
    display: inline-flex;
    align-items: center;
    margin-bottom: var(--sp-md);
}

.footer__logo {
    height: 34px;
    width: auto;
    object-fit: contain;
    filter: brightness(0) invert(1);
    opacity: .9;
    transition: opacity var(--dur) var(--ease);
}
.footer__brand:hover .footer__logo {
    opacity: 1;
}

.footer__about {
    font-size: var(--fs-sm);
    line-height: 1.65;
    margin-bottom: var(--sp-lg);
    max-width: 300px;
}

.footer__social {
    display: flex;
    gap: var(--sp-md);
}
.footer__social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,.06);
    color: rgba(255,255,255,.7);
    transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.footer__social a:hover {
    background: var(--c-primary);
    color: var(--c-white);
}

.footer__heading {
    font-size: var(--fs-sm);
    font-weight: 700;
    color: var(--c-white);
    text-transform: uppercase;
    letter-spacing: .08em;
    margin-bottom: var(--sp-lg);
}

.footer__links li + li { margin-top: var(--sp-sm); }

.footer__links a {
    font-size: var(--fs-sm);
    transition: color var(--dur) var(--ease);
}
.footer__links a:hover {
    color: var(--c-cyan-400);
}

/* Footer bottom */
.footer__bottom {
    padding: var(--sp-lg) 0;
    border-top: 1px solid rgba(255,255,255,.08);
}

.footer__bottom-inner {
    text-align: center;
}

.footer__bottom p {
    font-size: var(--fs-xs);
    color: rgba(255,255,255,.4);
}

.footer__disclaimer {
    margin-top: var(--sp-sm);
    font-style: italic;
}

/* ══════════════════════════════════════════════════════════
   WHATSAPP FLOAT
   ══════════════════════════════════════════════════════════ */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--c-green-500);
    border-radius: 50%;
    box-shadow: 0 4px 16px rgba(37,211,102,.4);
    transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 24px rgba(37,211,102,.5);
}

/* ══════════════════════════════════════════════════════════
   INSTITUTIONAL PAGES (About, Research, Contact, Blog)
   ══════════════════════════════════════════════════════════ */

/* Page Hero — reused across all institutional pages */
.page-hero {
    padding: calc(var(--header-h) + var(--sp-4xl)) 0 var(--sp-3xl);
    background: linear-gradient(160deg, var(--c-blue-950) 0%, var(--c-blue-800) 100%);
    color: var(--c-white);
    text-align: center;
}

.page-hero__title {
    font-family: var(--ff-display);
    font-size: var(--fs-3xl);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -.02em;
    margin: var(--sp-md) 0 var(--sp-lg);
}

.page-hero__text {
    font-size: var(--fs-md);
    color: rgba(255,255,255,.75);
    line-height: 1.65;
    max-width: 640px;
    margin: 0 auto;
}

.page-hero .section-header__tag {
    background: rgba(6,182,212,.12);
    color: var(--c-cyan-400);
}

/* Content Sections */
.content-section {
    padding: var(--sp-4xl) 0;
}

.content-section--alt {
    background: var(--c-surface-2);
}

.content-section__inner {
    max-width: 800px;
    margin: 0 auto;
}

/* Content Block */
.content-block {
    text-align: left;
}

.content-block--center {
    text-align: center;
}

.content-block__title {
    font-family: var(--ff-display);
    font-size: var(--fs-2xl);
    font-weight: 700;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-lg);
    line-height: 1.2;
}

.content-block__text {
    font-size: var(--fs-md);
    color: var(--c-text-2);
    line-height: 1.7;
}

.content-block__text + .content-block__text {
    margin-top: var(--sp-lg);
}

/* Content Prose — text-rich SEO sections */
.content-prose {
    max-width: 820px;
    margin: 0 auto;
}
.content-prose p {
    font-size: var(--fs-md);
    color: var(--c-text-2);
    line-height: 1.8;
    margin-bottom: var(--sp-lg);
}
.content-prose p:last-child {
    margin-bottom: 0;
}

/* CTA Banner */
.cta-banner {
    padding: var(--sp-4xl) 0;
    background: linear-gradient(160deg, var(--c-blue-950), var(--c-blue-800));
    color: var(--c-white);
    text-align: center;
}

.cta-banner__title {
    font-family: var(--ff-display);
    font-size: var(--fs-2xl);
    font-weight: 700;
    margin-bottom: var(--sp-md);
}

.cta-banner__text {
    font-size: var(--fs-md);
    color: rgba(255,255,255,.75);
    max-width: 560px;
    margin: 0 auto var(--sp-xl);
}

.cta-banner__actions {
    display: flex;
    gap: var(--sp-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Steps Grid (Research QC) */
.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-lg);
    counter-reset: step;
}

.step-card {
    position: relative;
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: var(--sp-xl);
    transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.step-card:hover {
    border-color: var(--c-blue-200);
    box-shadow: var(--shadow-md);
}

.step-card__header {
    display: flex;
    align-items: center;
    gap: var(--sp-md);
    margin-bottom: var(--sp-lg);
}

.step-card__num {
    font-family: var(--ff-display);
    font-size: var(--fs-2xl);
    font-weight: 800;
    color: var(--c-blue-100);
    line-height: 1;
}

.step-card__icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--c-blue-50);
    border-radius: 50%;
    color: var(--c-primary);
}

.step-card__title {
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-sm);
}

.step-card__text {
    font-size: var(--fs-sm);
    color: var(--c-text-2);
    line-height: 1.6;
}

/* Contact Grid */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-3xl);
}

/* Contact Form */
.form-group {
    margin-bottom: var(--sp-lg);
}

.form-label {
    display: block;
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--c-gray-700);
    margin-bottom: var(--sp-xs);
}

.form-input {
    width: 100%;
    padding: .75rem 1rem;
    border: 2px solid var(--c-border);
    border-radius: var(--radius);
    font-family: var(--ff-body);
    font-size: var(--fs-base);
    color: var(--c-text);
    background: var(--c-white);
    transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
    outline: none;
}

.form-input:focus {
    border-color: var(--c-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form__submit {
    width: 100%;
}

/* Contact Channels */
.contact-channels__title {
    font-family: var(--ff-body);
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-xl);
}

.channel-card {
    padding: var(--sp-xl);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    margin-bottom: var(--sp-md);
    transition: border-color var(--dur) var(--ease);
}

.channel-card:hover {
    border-color: var(--c-blue-200);
}

.channel-card--muted {
    background: var(--c-surface-2);
    border-color: transparent;
}

.channel-card__icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--c-blue-50);
    border-radius: 50%;
    color: var(--c-primary);
    margin-bottom: var(--sp-md);
}

.channel-card__icon--whatsapp {
    background: rgba(37,211,102,.1);
    color: var(--c-green-500);
}

.channel-card__name {
    font-size: var(--fs-base);
    font-weight: 700;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-xs);
}

.channel-card__text {
    font-size: var(--fs-sm);
    color: var(--c-text-2);
    line-height: 1.55;
    margin-bottom: var(--sp-md);
}

/* Coming Soon (Blog) */
.coming-soon {
    text-align: center;
    padding: var(--sp-4xl) var(--sp-lg);
    max-width: 600px;
    margin: 0 auto;
}

.coming-soon__icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--c-blue-50);
    border-radius: 50%;
    color: var(--c-primary);
    margin: 0 auto var(--sp-xl);
}

.coming-soon__title {
    font-family: var(--ff-display);
    font-size: var(--fs-2xl);
    font-weight: 700;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-md);
}

.coming-soon__text {
    font-size: var(--fs-md);
    color: var(--c-text-2);
    line-height: 1.65;
    margin-bottom: var(--sp-2xl);
}

.coming-soon__actions {
    display: flex;
    gap: var(--sp-md);
    justify-content: center;
    flex-wrap: wrap;
}


/* ══════════════════════════════════════════════════════════
   CATALOG PAGE
   ══════════════════════════════════════════════════════════ */
.catalog-filter {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-sm);
    justify-content: center;
    margin-bottom: var(--sp-lg);
}

.catalog-filter__btn {
    padding: .5rem 1.25rem;
    border: 2px solid var(--c-border);
    border-radius: 99px;
    background: var(--c-white);
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--c-text-2);
    cursor: pointer;
    transition: all var(--dur) var(--ease);
}

.catalog-filter__btn:hover {
    border-color: var(--c-blue-200);
    color: var(--c-primary);
}

.catalog-filter__btn.is-active {
    background: var(--c-primary);
    border-color: var(--c-primary);
    color: var(--c-white);
}

.catalog-count {
    text-align: center;
    font-size: var(--fs-sm);
    color: var(--c-text-3);
    margin-bottom: var(--sp-xl);
}

.catalog-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-lg);
}

.catalog-card {
    position: relative;
    display: grid;
    grid-template-columns: 120px 1fr;
    grid-template-rows: 1fr auto;
    gap: 0 var(--sp-lg);
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: var(--sp-lg);
    transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.catalog-card:hover {
    border-color: var(--c-blue-200);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.catalog-card[data-hidden="true"] {
    display: none;
}

.catalog-card__image {
    grid-row: 1 / -1;
    width: 120px;
    aspect-ratio: 184 / 300;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--c-blue-50), rgba(6,182,212,.06));
    border-radius: var(--radius);
    overflow: hidden;
    align-self: center;
}

.catalog-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s var(--ease);
}

.catalog-card:hover .catalog-card__image img {
    transform: scale(1.05);
}

.catalog-card__body {
    flex: 1;
}

.catalog-card__name {
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-xs);
}

.catalog-card__desc {
    font-size: var(--fs-sm);
    color: var(--c-text-2);
    line-height: 1.55;
    margin-bottom: var(--sp-md);
}

.catalog-card__meta {
    display: flex;
    gap: var(--sp-sm);
    margin-bottom: var(--sp-lg);
}

.catalog-card__purity,
.catalog-card__cat {
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    padding: .2rem .6rem;
    border-radius: 4px;
}

.catalog-card__purity {
    background: rgba(16,185,129,.08);
    color: #059669;
}

.catalog-card__cat {
    background: var(--c-blue-50);
    color: var(--c-primary);
}

.catalog-card__footer {
    grid-column: 2;
    padding-top: var(--sp-md);
    border-top: 1px solid var(--c-border);
}

.catalog-card__footer .btn {
    width: 100%;
}

/* ══════════════════════════════════════════════════════════
   PRODUCT SINGLE PAGE
   ══════════════════════════════════════════════════════════ */

/* Breadcrumb */
.breadcrumb {
    padding: calc(var(--header-h) + var(--sp-lg)) 0 0;
    background: var(--c-surface-2);
}

.breadcrumb__list {
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
    font-size: var(--fs-sm);
    color: var(--c-text-3);
    list-style: none;
    padding: 0;
    margin: 0;
    flex-wrap: wrap;
}

.breadcrumb__list li:not(:last-child)::after {
    content: '›';
    margin-left: var(--sp-sm);
    color: var(--c-gray-300);
}

.breadcrumb__list a {
    color: var(--c-text-2);
    transition: color var(--dur) var(--ease);
}

.breadcrumb__list a:hover {
    color: var(--c-primary);
}

.breadcrumb__list li[aria-current] {
    color: var(--c-blue-900);
    font-weight: 600;
}

/* Product Hero */
.product-hero {
    padding: var(--sp-2xl) 0 var(--sp-3xl);
    background: var(--c-surface-2);
}

.product-hero__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-2xl);
    align-items: start;
}

.product-hero__visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--sp-md);
}

.product-hero__icon-wrap {
    width: 180px;
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--c-blue-50), rgba(6,182,212,.08));
    border: 2px solid var(--c-blue-100);
    border-radius: var(--radius-xl);
    color: var(--c-primary);
}

/* ── Product Gallery ── */
.product-gallery {
    width: 100%;
}

.product-gallery__main {
    width: 100%;
    aspect-ratio: 1;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--c-surface-2);
    border: 1px solid var(--c-border);
    margin-bottom: var(--sp-sm);
}

.product-gallery__main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .3s ease;
}

.product-gallery__main:hover img {
    transform: scale(1.03);
}

.product-gallery__thumbs {
    display: flex;
    gap: var(--sp-xs);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: var(--sp-xs);
}

.product-gallery__thumb {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    border-radius: var(--radius);
    overflow: hidden;
    border: 2px solid var(--c-border);
    cursor: pointer;
    background: var(--c-surface-2);
    padding: 0;
    transition: border-color .2s;
}

.product-gallery__thumb:hover,
.product-gallery__thumb.is-active {
    border-color: var(--c-primary);
}

.product-gallery__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.product-hero__tag {
    font-size: var(--fs-xs);
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    padding: .35rem .8rem;
    background: var(--c-primary);
    color: var(--c-white);
    border-radius: 99px;
}

.product-hero__name {
    font-family: var(--ff-display);
    font-size: var(--fs-3xl);
    font-weight: 700;
    color: var(--c-blue-900);
    line-height: 1.15;
    margin-bottom: var(--sp-md);
}

.product-hero__desc {
    font-size: var(--fs-md);
    color: var(--c-text-2);
    line-height: 1.6;
    margin-bottom: var(--sp-xl);
}

/* Dose Selector */
.product-doses {
    margin-bottom: var(--sp-xl);
}

.product-doses__label {
    display: block;
    font-size: var(--fs-sm);
    font-weight: 700;
    color: var(--c-gray-700);
    margin-bottom: var(--sp-sm);
}

.product-doses__options {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-sm);
}

.product-doses__btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: .75rem 1.25rem;
    border: 2px solid var(--c-border);
    border-radius: var(--radius);
    background: var(--c-white);
    cursor: pointer;
    transition: all var(--dur) var(--ease);
    min-width: 90px;
}

.product-doses__btn:hover {
    border-color: var(--c-blue-200);
}

.product-doses__btn.is-active {
    border-color: var(--c-primary);
    background: var(--c-blue-50);
}

.product-doses__dose {
    font-size: var(--fs-sm);
    font-weight: 700;
    color: var(--c-blue-900);
}

.product-doses__price {
    font-size: var(--fs-xs);
    color: var(--c-text-2);
    margin-top: 2px;
}
.product-doses__stock {
    font-size: 0.6rem;
    font-weight: 600;
    margin-top: 2px;
    text-transform: uppercase;
    letter-spacing: .03em;
}
.product-doses__stock--low { color: #ea580c; }
.product-doses__stock--out { color: var(--c-text-3); }
.product-doses__btn.is-sold-out {
    opacity: .45;
    cursor: not-allowed;
    position: relative;
}
.product-doses__btn.is-sold-out::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 10%;
    width: 80%;
    height: 1px;
    background: var(--c-text-3);
    transform: rotate(-12deg);
}

/* Sold out badge on product page */
.product-sold-out-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-xs);
    padding: var(--sp-xs) var(--sp-md);
    background: var(--c-gray-100);
    color: var(--c-text-3);
    border-radius: var(--radius);
    font-weight: 700;
    font-size: var(--fs-sm);
    margin-bottom: var(--sp-md);
}

/* Catalog card sold out */
.catalog-card--sold-out { opacity: .7; }
.catalog-card__sold-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,.7);
    border-radius: inherit;
}
.catalog-card__sold-overlay span {
    background: var(--c-gray-800);
    color: #fff;
    padding: 4px 16px;
    border-radius: 99px;
    font-weight: 700;
    font-size: var(--fs-sm);
    text-transform: uppercase;
    letter-spacing: .05em;
}
.catalog-card__image { position: relative; }
.product-card__tag--sold-out {
    background: var(--c-gray-600) !important;
}
.catalog-card__stock { font-size: var(--fs-xs); font-weight: 600; }
.catalog-card__stock--low { color: #ea580c; }
.btn--disabled {
    opacity: .5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Cart summary lines */
.cart-summary__line {
    display: flex;
    justify-content: space-between;
    padding: var(--sp-xs) 0;
    font-size: var(--fs-sm);
    color: var(--c-text-2);
}
.cart-summary__free-shipping-note {
    display: flex;
    align-items: center;
    gap: var(--sp-xs);
    font-size: var(--fs-xs);
    color: var(--c-success, #16a34a);
    margin: var(--sp-xs) 0;
}

.product-hero__actions {
    margin-bottom: var(--sp-lg);
}

.product-hero__cart {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-sm);
}

/* ── Bulk Pricing ── */
.bulk-pricing {
    margin-top: var(--sp-lg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.bulk-pricing__header {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .6rem 1rem;
    background: var(--c-blue-50);
    border-bottom: 1px solid var(--c-border);
    font-size: var(--fs-xs);
    font-weight: 700;
    color: var(--c-blue-900);
    letter-spacing: .02em;
}

.bulk-pricing__tiers {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
}

.bulk-tier {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .15rem;
    padding: .8rem .5rem;
    border: none;
    border-right: 1px solid var(--c-border);
    background: var(--c-white);
    cursor: pointer;
    transition: background .15s;
    font-family: inherit;
}
.bulk-tier:last-child { border-right: none; }
.bulk-tier:hover { background: var(--c-surface-2); }
.bulk-tier.is-active {
    background: var(--c-blue-50);
    box-shadow: inset 0 -3px 0 var(--c-primary);
}

.bulk-tier__badge {
    position: absolute;
    top: -1px;
    right: 6px;
    background: var(--c-primary);
    color: var(--c-white);
    font-size: 10px;
    font-weight: 800;
    padding: 2px 6px;
    border-radius: 0 0 4px 4px;
    letter-spacing: .02em;
}

.bulk-tier__qty {
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--c-text-2);
}

.bulk-tier__price {
    font-size: var(--fs-lg);
    font-weight: 800;
    color: var(--c-blue-900);
}

.bulk-tier__each {
    font-size: 10px;
    color: var(--c-text-3);
    font-weight: 500;
}

.bulk-tier__save {
    font-size: 11px;
    color: var(--c-primary);
    font-weight: 600;
}
.bulk-tier__save strong {
    color: #059669;
}

/* Cart discount */
.cart-row__discount {
    font-size: var(--fs-xs);
    color: #059669;
    font-weight: 600;
}
.cart-row__original {
    text-decoration: line-through;
    color: var(--c-text-3);
    font-size: var(--fs-xs);
    margin-right: .3rem;
}
.cart-summary__discount {
    color: #059669;
    font-weight: 600;
}

.product-hero__coa {
    display: flex;
    align-items: center;
    gap: var(--sp-xs);
    font-size: var(--fs-sm);
    color: #059669;
    font-weight: 600;
}

/* Specs Table */
.specs-table-wrap {
    max-width: 700px;
    margin: 0 auto;
    overflow-x: auto;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
}

.specs-table th,
.specs-table td {
    padding: .85rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--c-border);
    font-size: var(--fs-sm);
}

.specs-table th {
    font-weight: 700;
    color: var(--c-blue-900);
    width: 35%;
    white-space: nowrap;
}

.specs-table td {
    color: var(--c-text-2);
}

.specs-table__mono {
    font-family: 'Courier New', monospace;
    font-size: .8rem;
    word-break: break-all;
}

/* Product Content Grid */
.product-content-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-3xl);
}

/* Disclaimer */
.product-disclaimer {
    padding: var(--sp-lg) 0;
    background: var(--c-surface-2);
    text-align: center;
}

.product-disclaimer p {
    font-size: var(--fs-xs);
    color: var(--c-text-3);
    font-weight: 600;
    letter-spacing: .04em;
    text-transform: uppercase;
}

/* Related Grid */
.related-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-lg);
}

/* Product Not Found */
.product-not-found {
    text-align: center;
    padding: calc(var(--header-h) + 3rem) 1.5rem 3rem;
}
.product-not-found__title {
    font-family: var(--ff-display);
    font-size: var(--fs-2xl);
    color: var(--c-blue-900);
    margin: 1rem 0;
}
.product-not-found__desc {
    color: var(--c-text-2);
    font-size: var(--fs-md);
    max-width: 480px;
    margin: 0 auto 2rem;
}
.product-not-found__actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

/* Centered content block title */
.content-block__title--center {
    text-align: center;
    margin-bottom: var(--sp-2xl);
}

.related-card {
    display: flex;
    align-items: center;
    gap: var(--sp-lg);
    padding: var(--sp-lg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    background: var(--c-white);
    transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.related-card:hover {
    border-color: var(--c-blue-200);
    box-shadow: var(--shadow-sm);
}

.related-card__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--c-blue-50);
    border-radius: var(--radius);
    color: var(--c-primary);
    flex-shrink: 0;
}

.related-card__name {
    font-size: var(--fs-base);
    font-weight: 700;
    color: var(--c-blue-900);
}

.related-card__price {
    font-size: var(--fs-sm);
    color: var(--c-text-2);
    margin-top: 2px;
}


/* ══════════════════════════════════════════════════════════
   CART PAGE
   ══════════════════════════════════════════════════════════ */
.page-hero--sm {
    padding-bottom: var(--sp-xl);
}

.page-hero--sm .page-hero__title {
    font-size: var(--fs-2xl);
}

.cart-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-2xl);
}

.cart-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.cart-table {
    width: 100%;
    min-width: 480px;
    border-collapse: collapse;
}

.cart-table thead { border-bottom: 2px solid var(--c-border); }

.cart-table th {
    font-size: var(--fs-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--c-text-3);
    padding: 0 var(--sp-sm) var(--sp-md);
    text-align: left;
    white-space: nowrap;
}

.cart-table th:last-child { text-align: center; width: 40px; }

.cart-table td {
    padding: var(--sp-md) var(--sp-sm);
    border-bottom: 1px solid var(--c-border);
    vertical-align: middle;
    font-size: var(--fs-sm);
}

.cart-items {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.cart-row__name {
    font-weight: 700;
    color: var(--c-blue-900);
    font-size: var(--fs-base);
    white-space: nowrap;
}

.cart-row__dose { color: var(--c-text-2); }
.cart-row__price { color: var(--c-text-2); }

.cart-row__qty {
    display: flex;
    align-items: center;
    gap: var(--sp-xs);
}

.cart-row__qty-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    background: var(--c-white);
    font-size: var(--fs-base);
    font-weight: 700;
    color: var(--c-blue-900);
    cursor: pointer;
    transition: border-color var(--dur) var(--ease);
}

.cart-row__qty-btn:hover { border-color: var(--c-primary); }

.cart-row__qty-val {
    min-width: 28px;
    text-align: center;
    font-weight: 700;
    font-size: var(--fs-sm);
    color: var(--c-blue-900);
}

.cart-row__subtotal {
    font-weight: 700;
    color: var(--c-blue-900);
}

.cart-row__remove {
    background: none;
    border: none;
    font-size: var(--fs-sm);
    color: var(--c-text-3);
    cursor: pointer;
    padding: var(--sp-xs);
    transition: color var(--dur) var(--ease);
    display: flex;
    justify-content: center;
}

.cart-row__remove:hover { color: #dc2626; }

.cart-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--sp-lg);
}

.btn--ghost {
    background: none;
    border: none;
    color: var(--c-text-3);
    font-size: var(--fs-sm);
    font-weight: 600;
    cursor: pointer;
    padding: .5rem 1rem;
    transition: color var(--dur) var(--ease);
}

.btn--ghost:hover {
    color: #dc2626;
}

/* Cart Summary Sidebar */
.cart-summary {
    background: var(--c-surface-2);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: var(--sp-xl);
}

.cart-summary__title {
    font-family: var(--ff-display);
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-lg);
}

.cart-summary__row {
    display: flex;
    justify-content: space-between;
    font-size: var(--fs-sm);
    color: var(--c-text-2);
    padding: var(--sp-xs) 0;
}

.cart-summary__total {
    display: flex;
    justify-content: space-between;
    font-family: var(--ff-display);
    font-size: var(--fs-xl);
    font-weight: 800;
    color: var(--c-blue-900);
    padding: var(--sp-lg) 0;
    border-top: 2px solid var(--c-border);
    margin-top: var(--sp-md);
}

.cart-summary__cta {
    width: 100%;
    text-align: center;
    margin-bottom: var(--sp-md);
}

.cart-summary__note {
    display: flex;
    align-items: center;
    gap: var(--sp-xs);
    font-size: var(--fs-xs);
    color: var(--c-text-3);
}

/* ══════════════════════════════════════════════════════════
   CHECKOUT PAGE
   ══════════════════════════════════════════════════════════ */
.checkout-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-2xl);
}

.checkout-form__heading,
.checkout-review__heading {
    font-family: var(--ff-display);
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-xl);
    padding-bottom: var(--sp-md);
    border-bottom: 2px solid var(--c-border);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-md);
}

.form-row--3 {
    grid-template-columns: 1fr 1fr 1fr;
}

.form-group {
    margin-bottom: var(--sp-md);
}

.form-label {
    display: block;
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--c-gray-700);
    margin-bottom: var(--sp-xs);
}

.form-group .form-input {
    width: 100%;
}

.form-input.is-error {
    border-color: #dc2626;
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

/* Checkout Review Sidebar */
.checkout-review {
    background: var(--c-surface-2);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: var(--sp-xl);
    align-self: start;
    position: sticky;
    top: calc(var(--header-h) + var(--sp-lg));
}

.checkout-review__item {
    display: flex;
    justify-content: space-between;
    gap: var(--sp-sm);
    padding: var(--sp-sm) 0;
    border-bottom: 1px solid var(--c-border);
    font-size: var(--fs-sm);
}

.checkout-review__item-name {
    color: var(--c-blue-900);
    font-weight: 600;
}

.checkout-review__item-meta {
    color: var(--c-text-3);
    font-size: var(--fs-xs);
}

.checkout-review__item-price {
    font-weight: 700;
    color: var(--c-blue-900);
    white-space: nowrap;
}

.checkout-terms {
    font-size: var(--fs-xs);
    color: var(--c-text-3);
    line-height: 1.5;
    margin-bottom: var(--sp-md);
}

.checkout-review__cta {
    width: 100%;
    text-align: center;
}

/* Success State */
/* Checkout spinner */
.checkout-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin .6s linear infinite;
    vertical-align: middle;
}
.checkout-spinner--lg {
    width: 40px;
    height: 40px;
    border-width: 3px;
    border-color: rgba(37,99,235,.15);
    border-top-color: var(--c-primary);
    margin: 0 auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Stripe badge */
.checkout-stripe-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .4rem;
    margin-top: var(--sp-md);
    font-size: 11px;
    font-weight: 600;
    color: var(--c-text-3);
    letter-spacing: .02em;
}

/* Processing fee line */
.cart-summary__line--fee {
    font-size: var(--fs-xs);
    color: var(--c-text-3);
    font-style: italic;
}

/* Checkout divider */
.checkout-divider {
    display: flex;
    align-items: center;
    gap: var(--sp-md);
    margin: var(--sp-md) 0;
    color: var(--c-text-3);
    font-size: var(--fs-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
}
.checkout-divider::before,
.checkout-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--c-border);
}

/* Venmo Button */
.btn--venmo {
    background: #008CFF;
    color: #fff;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-xs);
    width: 100%;
    font-weight: 700;
    margin-top: var(--sp-sm);
    transition: background .2s;
}
.btn--venmo:hover { background: #0070d4; }

/* Venmo Modal */
.venmo-modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--sp-md);
}
.venmo-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,.6);
    backdrop-filter: blur(4px);
}
.venmo-modal__content {
    position: relative;
    background: var(--c-surface);
    border-radius: 16px;
    padding: var(--sp-xl);
    max-width: 480px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 24px 48px rgba(0,0,0,.2);
    animation: venmoSlideUp .3s ease-out;
}
@keyframes venmoSlideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.venmo-modal__close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--c-text-3);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s;
}
.venmo-modal__close:hover { background: var(--c-gray-100); }
.venmo-modal__header {
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
    margin-bottom: var(--sp-lg);
}
.venmo-modal__header h3 {
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--c-text);
    margin: 0;
}
.venmo-modal__info {
    background: var(--c-gray-50, #f9fafb);
    border-radius: 12px;
    padding: var(--sp-md);
    margin-bottom: var(--sp-lg);
}
.venmo-modal__detail {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--sp-xs) 0;
}
.venmo-modal__detail + .venmo-modal__detail {
    border-top: 1px solid var(--c-border);
}
.venmo-modal__label {
    font-size: var(--fs-sm);
    color: var(--c-text-3);
}
.venmo-modal__value {
    font-weight: 700;
    font-size: var(--fs-sm);
    color: var(--c-text);
}
.venmo-modal__detail--total {
    margin-top: var(--sp-xs);
    padding-top: var(--sp-sm);
}
.venmo-modal__amount {
    font-size: var(--fs-xl) !important;
    color: #008CFF !important;
}
.venmo-modal__note {
    font-size: var(--fs-xs);
    color: #16a34a;
    font-weight: 600;
    margin-top: var(--sp-sm);
    text-align: center;
}
.venmo-modal__steps {
    margin-bottom: var(--sp-lg);
}
.venmo-modal__step {
    display: flex;
    align-items: flex-start;
    gap: var(--sp-sm);
    padding: var(--sp-sm) 0;
    font-size: var(--fs-sm);
    color: var(--c-text-2);
    line-height: 1.5;
}
.venmo-modal__step-num {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    background: #008CFF;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
}

/* Upload zone */
.venmo-modal__upload {
    margin-bottom: var(--sp-lg);
}
.venmo-modal__dropzone {
    border: 2px dashed var(--c-border);
    border-radius: 12px;
    padding: var(--sp-xl) var(--sp-md);
    text-align: center;
    cursor: pointer;
    transition: border-color .2s, background .2s;
    color: var(--c-text-3);
}
.venmo-modal__dropzone:hover,
.venmo-modal__dropzone.is-dragover {
    border-color: #008CFF;
    background: rgba(0,140,255,.04);
    color: #008CFF;
}
.venmo-modal__upload-text {
    font-weight: 600;
    font-size: var(--fs-sm);
    margin: var(--sp-sm) 0 var(--sp-xs);
}
.venmo-modal__upload-hint {
    font-size: var(--fs-xs);
    color: var(--c-text-3);
}
.venmo-modal__preview {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    border: 2px solid #22c55e;
}
.venmo-modal__preview img {
    width: 100%;
    max-height: 250px;
    object-fit: cover;
    display: block;
}
.venmo-modal__preview-remove {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(0,0,0,.7);
    color: #fff;
    border: none;
    padding: 4px 12px;
    border-radius: 99px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
}
.venmo-modal__submit {
    width: 100%;
}
.venmo-modal__submit:disabled {
    opacity: .5;
    cursor: not-allowed;
    background: var(--c-gray-300, #d1d5db);
    color: var(--c-text-3);
}
.venmo-modal__submit-lock {
    font-size: var(--fs-sm);
}
.venmo-modal__submitting {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-sm);
    padding: var(--sp-md);
    font-size: var(--fs-sm);
    color: var(--c-text-3);
}

/* Mobile Venmo */
@media (max-width: 480px) {
    .venmo-modal__content { padding: var(--sp-lg); }
}

/* Success Page */
.checkout-success-page {
    min-height: 60vh;
    display: flex;
    align-items: center;
    padding: calc(var(--header-h) + 3rem) 0 4rem;
}

.checkout-success-page .checkout-success__inner {
    text-align: center;
    max-width: 560px;
    margin: 0 auto;
    padding: var(--sp-3xl) var(--sp-xl);
}

.checkout-success__icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(5,150,105,.08);
    border-radius: 50%;
    color: #059669;
    margin: 0 auto var(--sp-xl);
}
.checkout-success__icon--warning {
    background: rgba(245,158,11,.08);
    color: #d97706;
}

.checkout-success__title {
    font-family: var(--ff-display);
    font-size: var(--fs-2xl);
    font-weight: 700;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-md);
}

.checkout-success__text {
    font-size: var(--fs-md);
    color: var(--c-text-2);
    margin-bottom: var(--sp-lg);
}

.checkout-success__order-id {
    font-size: var(--fs-md);
    color: var(--c-blue-900);
    margin-bottom: var(--sp-xl);
    padding: var(--sp-md);
    background: var(--c-surface-2);
    border-radius: var(--radius);
    display: inline-block;
}

.checkout-success__order-id span {
    font-family: 'Courier New', monospace;
    letter-spacing: .05em;
    font-weight: 700;
    font-size: var(--fs-lg);
}

.checkout-success__details {
    display: flex;
    flex-direction: column;
    gap: .6rem;
    margin-top: var(--sp-lg);
}

.checkout-success__detail-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    font-size: var(--fs-sm);
    font-weight: 600;
    color: #059669;
}


/* ══════════════════════════════════════════════════════════
   FAQ PAGE
   ══════════════════════════════════════════════════════════ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    margin-bottom: var(--sp-sm);
    background: var(--c-white);
    overflow: hidden;
    transition: border-color var(--dur) var(--ease);
}
.faq-item[open] { border-color: var(--c-blue-200); }

.faq-item__q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-md);
    padding: var(--sp-lg);
    font-weight: 700;
    font-size: var(--fs-base);
    color: var(--c-blue-900);
    cursor: pointer;
    list-style: none;
    user-select: none;
}
.faq-item__q::-webkit-details-marker { display: none; }
.faq-item__q::marker { display: none; content: ''; }

.faq-item__icon {
    flex-shrink: 0;
    transition: transform var(--dur) var(--ease);
    color: var(--c-text-3);
}
.faq-item[open] .faq-item__icon { transform: rotate(180deg); color: var(--c-primary); }

.faq-item__a {
    padding: 0 var(--sp-lg) var(--sp-lg);
    font-size: var(--fs-sm);
    color: var(--c-text-2);
    line-height: 1.7;
}

.faq-cta {
    text-align: center;
    margin-top: var(--sp-3xl);
    padding: var(--sp-2xl);
    background: var(--c-surface-2);
    border-radius: var(--radius-lg);
}
.faq-cta__text {
    font-size: var(--fs-md);
    color: var(--c-text-2);
    margin-bottom: var(--sp-lg);
}

/* ══════════════════════════════════════════════════════════
   QUALITY PAGE
   ══════════════════════════════════════════════════════════ */
.quality-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--sp-lg);
}

.quality-card {
    padding: var(--sp-xl);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    background: var(--c-white);
    transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.quality-card:hover {
    border-color: var(--c-blue-200);
    box-shadow: var(--shadow-sm);
}

.quality-card__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--c-blue-50), var(--c-blue-100));
    border-radius: var(--radius);
    color: var(--c-primary);
    margin-bottom: var(--sp-lg);
}

.quality-card__title {
    font-family: var(--ff-body);
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-sm);
}

.quality-card__text {
    font-size: var(--fs-sm);
    color: var(--c-text-2);
    line-height: 1.6;
}

/* ══════════════════════════════════════════════════════════
   LEGAL PAGES (Privacy, Terms, Returns)
   ══════════════════════════════════════════════════════════ */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
}

.legal-section {
    margin-bottom: var(--sp-2xl);
}

.legal-section__title {
    font-family: var(--ff-display);
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-md);
    padding-bottom: var(--sp-sm);
    border-bottom: 1px solid var(--c-border);
}

.legal-section p {
    font-size: var(--fs-sm);
    color: var(--c-text-2);
    line-height: 1.8;
}

/* ══════════════════════════════════════════════════════════
   TRACKING PAGE
   ══════════════════════════════════════════════════════════ */
.tracking-wrap {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-2xl);
    max-width: 900px;
    margin: 0 auto;
}

.tracking-form-card {
    padding: var(--sp-2xl);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    background: var(--c-white);
}
.tracking-form-card__title {
    font-family: var(--ff-display);
    font-size: var(--fs-xl);
    font-weight: 700;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-sm);
}
.tracking-form-card__text {
    font-size: var(--fs-sm);
    color: var(--c-text-2);
    margin-bottom: var(--sp-xl);
}

.tracking-result {
    margin-top: var(--sp-xl);
    padding: var(--sp-lg);
    background: #ecfdf5;
    border-radius: var(--radius);
    border: 1px solid #a7f3d0;
}
.tracking-result__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-md);
    margin-bottom: var(--sp-md);
}
.tracking-result__id {
    font-family: monospace;
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--c-blue-900);
}
.tracking-result__details p {
    font-size: var(--fs-sm);
    color: var(--c-text-2);
    margin-bottom: .3rem;
}

.tracking-error {
    margin-top: var(--sp-xl);
    padding: var(--sp-lg);
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--radius);
    text-align: center;
    color: #b91c1c;
}
.tracking-error p { margin-top: var(--sp-sm); font-size: var(--fs-sm); }

.tracking-info__title {
    font-family: var(--ff-display);
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-lg);
}

.tracking-steps {
    display: flex;
    flex-direction: column;
    gap: var(--sp-md);
}
.tracking-step {
    display: flex;
    align-items: flex-start;
    gap: var(--sp-md);
}
.tracking-step__icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    line-height: 1;
}
.tracking-step__title {
    font-size: var(--fs-sm);
    font-weight: 700;
    color: var(--c-blue-900);
}
.tracking-step__desc {
    font-size: var(--fs-xs);
    color: var(--c-text-2);
    margin-top: .15rem;
}

.tracking-help {
    margin-top: var(--sp-xl);
    padding: var(--sp-lg);
    background: var(--c-surface-2);
    border-radius: var(--radius);
}
.tracking-help p {
    font-size: var(--fs-sm);
    color: var(--c-text-2);
    margin-bottom: var(--sp-md);
}

/* ══════════════════════════════════════════════════════════
   SEARCH PAGE
   ══════════════════════════════════════════════════════════ */
.search-wrap { max-width: 800px; margin: 0 auto; }

.search-bar {
    position: relative;
    display: flex;
    align-items: center;
    border: 2px solid var(--c-border);
    border-radius: var(--radius-lg);
    background: var(--c-white);
    padding: 0 var(--sp-lg);
    transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.search-bar:focus-within {
    border-color: var(--c-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}
.search-bar__icon { flex-shrink: 0; color: var(--c-text-3); }
.search-bar__input {
    flex: 1;
    border: none;
    outline: none;
    padding: var(--sp-lg) var(--sp-md);
    font-size: var(--fs-md);
    background: transparent;
    font-family: var(--ff-body);
}
.search-bar__kbd {
    font-size: var(--fs-xs);
    padding: 2px 6px;
    border: 1px solid var(--c-border);
    border-radius: 4px;
    color: var(--c-text-3);
    background: var(--c-surface-2);
}

.search-bar__clear {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    background: var(--c-surface-2);
    border-radius: 50%;
    color: var(--c-text-3);
    cursor: pointer;
    transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
    flex-shrink: 0;
}
.search-bar__clear:hover { background: var(--c-gray-200); color: var(--c-text); }

.search-count {
    font-size: var(--fs-sm);
    color: var(--c-text-3);
    margin: var(--sp-md) 0;
}

.search-results { display: grid; grid-template-columns: 1fr; gap: var(--sp-sm); }

@media (min-width: 640px) {
    .search-results { grid-template-columns: repeat(2, 1fr); gap: var(--sp-md); }
    .search-result-card { flex-direction: column; }
    .search-result-card__img { width: 100%; height: 140px; }
}

.search-result-card {
    display: flex;
    gap: var(--sp-lg);
    padding: var(--sp-lg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    background: var(--c-white);
    transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.search-result-card:hover {
    border-color: var(--c-blue-200);
    box-shadow: var(--shadow-sm);
}
.search-result-card__img {
    width: 72px;
    height: 72px;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--c-surface-2);
    flex-shrink: 0;
}
.search-result-card__img img { width: 100%; height: 100%; object-fit: cover; }
.search-result-card__body { flex: 1; min-width: 0; }
.search-result-card__name {
    font-weight: 700;
    font-size: var(--fs-base);
    color: var(--c-blue-900);
    margin-bottom: .2rem;
}
.search-result-card__cat {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--c-primary);
    background: var(--c-blue-50);
    padding: 2px 8px;
    border-radius: 99px;
    margin-bottom: .4rem;
}
.search-result-card__desc {
    font-size: var(--fs-xs);
    color: var(--c-text-2);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.search-result-card__price {
    font-size: var(--fs-sm);
    font-weight: 700;
    color: var(--c-primary);
    margin-top: .3rem;
    display: inline-block;
}

.search-empty {
    text-align: center;
    padding: var(--sp-3xl) var(--sp-lg);
    color: var(--c-text-3);
}
.search-empty p { margin: var(--sp-md) 0 var(--sp-lg); }

/* ══════════════════════════════════════════════════════════
   MY ACCOUNT PAGE
   ══════════════════════════════════════════════════════════ */
.account-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--sp-lg);
    max-width: 900px;
    margin: 0 auto;
}

.account-card {
    padding: var(--sp-xl);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    background: var(--c-white);
    text-align: center;
    transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.account-card:hover {
    border-color: var(--c-blue-200);
    box-shadow: var(--shadow-sm);
}

.account-card__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--c-blue-50), var(--c-blue-100));
    border-radius: var(--radius);
    color: var(--c-primary);
    margin: 0 auto var(--sp-lg);
}

.account-card__title {
    font-family: var(--ff-body);
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-sm);
}

.account-card__text {
    font-size: var(--fs-sm);
    color: var(--c-text-2);
    line-height: 1.5;
    margin-bottom: var(--sp-lg);
}

/* ══════════════════════════════════════════════════════════
   AFFILIATE LANDING PAGE
   ══════════════════════════════════════════════════════════ */
.aff-steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-xl);
}

.aff-step {
    text-align: center;
    padding: var(--sp-xl);
}

.aff-step__num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--c-primary);
    color: var(--c-white);
    font-family: var(--ff-display);
    font-size: var(--fs-lg);
    font-weight: 800;
    margin-bottom: var(--sp-md);
}

.aff-step__title {
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-sm);
}

.aff-step__text {
    font-size: var(--fs-sm);
    color: var(--c-text-2);
    line-height: 1.6;
}

.aff-benefits {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-md);
    max-width: 700px;
    margin: 0 auto;
}

.aff-benefit {
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
    font-size: var(--fs-base);
    font-weight: 600;
    color: var(--c-blue-900);
}

.aff-benefit svg {
    flex-shrink: 0;
    color: #059669;
}

.aff-forms-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-2xl);
}

.aff-form-block {
    padding: var(--sp-xl);
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
}

.aff-login-block {
    background: var(--c-surface-2);
    align-self: start;
}

.aff-login-text {
    font-size: var(--fs-sm);
    color: var(--c-text-2);
    margin-bottom: var(--sp-lg);
}

.form-success {
    display: flex;
    gap: var(--sp-md);
    padding: var(--sp-lg);
    background: rgba(5,150,105,.06);
    border: 1px solid rgba(5,150,105,.2);
    border-radius: var(--radius);
    color: #059669;
}

.form-error {
    padding: var(--sp-md);
    background: rgba(220,38,38,.06);
    border: 1px solid rgba(220,38,38,.2);
    border-radius: var(--radius);
    color: #dc2626;
    font-size: var(--fs-sm);
    font-weight: 600;
    margin-bottom: var(--sp-lg);
}

/* ══════════════════════════════════════════════════════════
   AFFILIATE DASHBOARD
   ══════════════════════════════════════════════════════════ */
.affd-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--sp-md);
}

.affd-link-card {
    background: var(--c-blue-50);
    border: 2px solid var(--c-blue-100);
    border-radius: var(--radius-lg);
    padding: var(--sp-xl);
    margin-bottom: var(--sp-2xl);
}

.affd-link-card__title {
    font-size: var(--fs-sm);
    font-weight: 700;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-sm);
}

.affd-link-card__row {
    display: flex;
    gap: var(--sp-sm);
}

.affd-link-card__input {
    flex: 1;
    background: var(--c-white);
    font-family: 'Courier New', monospace;
    font-size: var(--fs-sm);
}

.affd-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--sp-md);
    margin-bottom: var(--sp-2xl);
}

.affd-stat {
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: var(--sp-xl);
    text-align: center;
}

.affd-stat--highlight {
    border-color: var(--c-primary);
    background: var(--c-blue-50);
}

.affd-stat__value {
    display: block;
    font-family: var(--ff-display);
    font-size: var(--fs-2xl);
    font-weight: 800;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-xs);
}

.affd-stat__label {
    font-size: var(--fs-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--c-text-3);
}

.affd-orders {
    margin-bottom: var(--sp-2xl);
}

.affd-orders__empty {
    padding: var(--sp-2xl);
    text-align: center;
    color: var(--c-text-3);
    background: var(--c-surface-2);
    border-radius: var(--radius-lg);
}

.affd-orders__table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.affd-orders__table {
    width: 100%;
    border-collapse: collapse;
}

.affd-orders__table th {
    font-size: var(--fs-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--c-text-3);
    padding: var(--sp-sm);
    text-align: left;
    border-bottom: 2px solid var(--c-border);
    white-space: nowrap;
}

.affd-orders__table td {
    padding: var(--sp-md) var(--sp-sm);
    font-size: var(--fs-sm);
    border-bottom: 1px solid var(--c-border);
    color: var(--c-text-2);
}

.affd-status {
    display: inline-block;
    font-size: var(--fs-xs);
    font-weight: 700;
    padding: .2rem .6rem;
    border-radius: 99px;
}

.affd-status--pending {
    background: rgba(245,158,11,.1);
    color: #d97706;
}

.affd-status--paid {
    background: rgba(5,150,105,.08);
    color: #059669;
}

.affd-materials {
    background: var(--c-surface-2);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: var(--sp-xl);
}

.affd-materials__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--sp-md);
}

.affd-materials__title {
    font-size: var(--fs-base);
    font-weight: 700;
    color: var(--c-blue-900);
    margin-bottom: var(--sp-xs);
}

.affd-materials__text {
    font-size: var(--fs-sm);
    color: var(--c-text-2);
}

/* ── TIER CARD — Hero Element ─────────────────────── */
.tier-card {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    border-radius: var(--radius-lg);
    padding: var(--sp-2xl);
    margin-bottom: var(--sp-2xl);
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 0 60px var(--tier-glow), 0 4px 24px rgba(0,0,0,.2);
}
.tier-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--tier-glow) 0%, transparent 70%);
    pointer-events: none;
}
.tier-card__top {
    display: flex;
    align-items: center;
    gap: var(--sp-xl);
    position: relative;
    z-index: 1;
}
.tier-card__ring {
    position: relative;
    width: 110px;
    height: 110px;
    flex-shrink: 0;
}
.tier-card__ring-svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 0 8px var(--tier-glow));
}
.tier-card__ring-inner {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.tier-card__ring-score {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    color: var(--tier-color);
}
.tier-card__ring-max {
    font-size: .75rem;
    opacity: .5;
}
.tier-card__info {
    flex: 1;
}
.tier-card__badge-label {
    font-size: var(--fs-xs);
    text-transform: uppercase;
    letter-spacing: .1em;
    opacity: .5;
}
.tier-card__name {
    font-family: var(--ff-serif, 'Playfair Display', serif);
    font-size: var(--fs-2xl);
    font-weight: 800;
    margin: .25rem 0 .5rem;
    display: flex;
    align-items: center;
    gap: .5rem;
    color: var(--tier-color);
}
.tier-card__icon {
    width: 28px;
    height: 28px;
    display: inline-flex;
}
.tier-card__icon svg {
    width: 100%;
    height: 100%;
}
.tier-card__tagline {
    font-size: var(--fs-sm);
    opacity: .6;
    font-style: italic;
}
.tier-card__decay {
    display: flex;
    align-items: center;
    gap: .35rem;
    font-size: var(--fs-xs);
    color: #fbbf24;
    margin-top: .5rem;
}
.tier-card__rate {
    text-align: center;
    flex-shrink: 0;
    padding: var(--sp-md) var(--sp-lg);
    background: rgba(255,255,255,.05);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,.1);
}
.tier-card__rate-pct {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--tier-color);
    line-height: 1;
}
.tier-card__rate-pct small {
    font-size: 1.25rem;
}
.tier-card__rate-label {
    font-size: var(--fs-xs);
    opacity: .5;
    text-transform: uppercase;
    letter-spacing: .08em;
}

/* ── Tier Road (progress bar with stops) ────────── */
.tier-road {
    position: relative;
    margin: var(--sp-xl) 0 var(--sp-md);
    padding-bottom: 1.75rem;
    z-index: 1;
}
.tier-road__bar {
    height: 6px;
    background: rgba(255,255,255,.1);
    border-radius: 3px;
    overflow: hidden;
}
.tier-road__fill {
    height: 100%;
    background: linear-gradient(90deg, #64748b, var(--tier-color));
    border-radius: 3px;
    transition: width 1.5s cubic-bezier(.4,0,.2,1);
}
.tier-road__stops {
    position: absolute;
    inset: 0;
    top: -5px;
    pointer-events: none;
}
.tier-road__stop {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    transform: translateX(-50%);
}
.tier-road__pip {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #334155;
    border: 2px solid #475569;
    transition: all .3s;
}
.tier-road__stop.is-done .tier-road__pip,
.tier-road__stop.is-active .tier-road__pip {
    background: var(--s-color);
    border-color: var(--s-color);
    box-shadow: 0 0 10px var(--s-color);
}
.tier-road__stop.is-active .tier-road__pip {
    width: 20px;
    height: 20px;
    margin-top: -2px;
}
.tier-road__slabel {
    font-size: .65rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    margin-top: .35rem;
    opacity: .4;
    white-space: nowrap;
}
.tier-road__stop.is-done .tier-road__slabel,
.tier-road__stop.is-active .tier-road__slabel {
    opacity: .8;
    color: var(--s-color);
}

/* ── Next tier info ─────────────────────────────── */
.tier-card__next {
    position: relative;
    z-index: 1;
    margin-top: var(--sp-md);
    padding-top: var(--sp-md);
    border-top: 1px solid rgba(255,255,255,.08);
}
.tier-card__next-text {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: var(--fs-sm);
    opacity: .7;
}
.tier-card__next-text strong {
    color: var(--tier-color);
    opacity: 1;
}
.tier-card__next--max {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: var(--fs-sm);
    color: #ef4444;
    font-weight: 600;
}
.tier-card__mbar-wrap {
    display: flex;
    align-items: center;
    gap: .75rem;
    margin-top: .75rem;
}
.tier-card__mbar-label {
    font-size: var(--fs-xs);
    opacity: .4;
    white-space: nowrap;
}
.tier-card__mbar {
    flex: 1;
    height: 4px;
    background: rgba(255,255,255,.1);
    border-radius: 2px;
    overflow: hidden;
}
.tier-card__mbar-fill {
    height: 100%;
    background: var(--tier-color);
    border-radius: 2px;
    transition: width 1s ease;
}
.tier-card__mbar-amt {
    font-size: var(--fs-xs);
    opacity: .5;
    white-space: nowrap;
}

/* ── Tier Levels Grid ───────────────────────────── */
.tier-levels {
    margin-top: var(--sp-2xl);
    margin-bottom: var(--sp-2xl);
}
.tier-levels__grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--sp-md);
    margin-top: var(--sp-xl);
}
.tier-level {
    background: var(--c-surface);
    border: 2px solid var(--c-border);
    border-radius: var(--radius);
    padding: var(--sp-lg);
    text-align: center;
    position: relative;
    transition: all .3s;
}
.tier-level--active {
    border-color: var(--t-color);
    box-shadow: 0 0 20px rgba(0,0,0,.08), inset 0 0 0 1px var(--t-color);
    transform: translateY(-4px);
}
.tier-level--locked {
    opacity: .45;
}
.tier-level--done {
    opacity: .7;
}
.tier-level__icon {
    width: 36px;
    height: 36px;
    margin: 0 auto var(--sp-sm);
    color: var(--t-color);
}
.tier-level__icon svg {
    width: 100%;
    height: 100%;
}
.tier-level__badge {
    position: absolute;
    top: -.65rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--t-color);
    color: #fff;
    font-size: .65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    padding: .2rem .75rem;
    border-radius: 100px;
    white-space: nowrap;
}
.tier-level__name {
    font-family: var(--ff-serif, 'Playfair Display', serif);
    font-size: var(--fs-md);
    font-weight: 700;
    color: var(--t-color);
    margin: 0;
}
.tier-level__rate {
    display: block;
    font-size: var(--fs-xl);
    font-weight: 800;
    color: var(--c-text);
    margin: .25rem 0;
}
.tier-level__range {
    display: block;
    font-size: var(--fs-xs);
    color: var(--c-text-2);
    margin-bottom: .5rem;
}
.tier-level__desc {
    font-size: var(--fs-xs);
    color: var(--c-text-2);
    line-height: 1.5;
    margin: 0;
}

/* ── Score Rules ─────────────────────────────────── */
.tier-rules {
    margin-bottom: var(--sp-2xl);
}
.tier-rules__title {
    font-size: var(--fs-lg);
    font-weight: 700;
    margin-bottom: var(--sp-md);
}
.tier-rules__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-md);
}
.tier-rules__card {
    padding: var(--sp-lg);
    border-radius: var(--radius);
    border: 1px solid var(--c-border);
    background: var(--c-surface);
}
.tier-rules__card-icon {
    margin-bottom: var(--sp-sm);
}
.tier-rules__card--up .tier-rules__card-icon { color: #22c55e; }
.tier-rules__card--down .tier-rules__card-icon { color: #ef4444; }
.tier-rules__card strong {
    display: block;
    margin-bottom: .25rem;
}
.tier-rules__card p {
    font-size: var(--fs-sm);
    color: var(--c-text-2);
    margin: 0;
    line-height: 1.6;
}


/* ══════════════════════════════════════════════════════════
   RESPONSIVE — MOBILE FIRST (<768px)
   ══════════════════════════════════════════════════════════ */
@media (max-width: 767px) {

    /* ── Global mobile reductions ── */
    :root {
        --sp-2xl: 2rem;
        --sp-3xl: 2.5rem;
        --sp-4xl: 3.5rem;
        --sp-5xl: 5rem;
        --header-h: 72px;
    }

    .container { padding: 0 1rem; }

    /* ── Lang switcher ── */
    .lang-switcher__label { display: none; }
    .lang-switcher__current { padding: 6px 8px; }
    .lang-switcher__dropdown { right: -40px; }

    /* ── Header ── */
    .header__inner { min-height: var(--header-h); }

    /* ── Hero ── */
    .hero__title { font-size: var(--fs-2xl); }
    .hero__subtitle { font-size: var(--fs-sm); }
    .hero__ctas { flex-direction: column; }
    .hero__ctas .btn { width: 100%; justify-content: center; }
    .hero__badges { flex-wrap: wrap; }

    /* ── Page heroes ── */
    .page-hero { padding: calc(var(--header-h) + 2rem) 0 2rem; }
    .page-hero__title { font-size: var(--fs-2xl); }
    .page-hero__text { font-size: var(--fs-sm); }
    .page-hero--sm .page-hero__title { font-size: var(--fs-xl); }

    /* ── Sections ── */
    .content-section { padding: var(--sp-3xl) 0; }
    .section-header__title { font-size: var(--fs-xl); }
    .content-block__title { font-size: var(--fs-lg); }

    /* ── Catalog grid — 1 col ── */
    .catalog-grid { gap: var(--sp-md); }
    .catalog-card {
        grid-template-columns: 90px 1fr;
        gap: 0 var(--sp-md);
        padding: var(--sp-md);
    }
    .catalog-card__image { width: 90px; }
    .catalog-card__image { width: 90px; }
    .catalog-card__image img { width: 100%; height: 100%; object-fit: cover; }
    .catalog-card__name { font-size: var(--fs-sm); }
    .catalog-card__desc { font-size: var(--fs-xs); -webkit-line-clamp: 2; }
    .catalog-card__meta { gap: .4rem; }
    .catalog-card__purity,
    .catalog-card__cat { font-size: 10px; padding: 2px 6px; }
    .catalog-card__footer .btn { font-size: var(--fs-xs); padding: .4rem .8rem; }

    .catalog-filter { gap: .3rem; flex-wrap: wrap; }
    .catalog-filter__btn { font-size: var(--fs-xs); padding: .4rem .7rem; }

    /* ── Product single ── */
    .product-hero { padding: var(--sp-lg) 0 var(--sp-2xl); }
    .product-hero__grid { gap: var(--sp-lg); }
    .product-hero__name { font-size: var(--fs-xl); margin-bottom: var(--sp-sm); }
    .product-hero__desc { font-size: var(--fs-sm); }

    /* Gallery */
    .product-gallery__main { aspect-ratio: 4/3; border-radius: var(--radius); }
    .product-gallery__thumbs { gap: .3rem; }
    .product-gallery__thumb { width: 52px; height: 52px; border-radius: 6px; }

    /* Dose selector */
    .product-doses { margin-top: var(--sp-md); }
    .product-doses__options { flex-wrap: wrap; gap: .4rem; }
    .product-doses__btn { min-width: 75px; padding: .55rem .8rem; }
    .product-doses__dose { font-size: var(--fs-xs); }
    .product-doses__price { font-size: var(--fs-sm); }

    /* Bulk pricing */
    .bulk-pricing { margin-top: var(--sp-md); }
    .bulk-pricing__header { font-size: 11px; padding: .5rem .75rem; }
    .bulk-tier { padding: .6rem .3rem; }
    .bulk-tier__badge { font-size: 9px; padding: 1px 5px; right: 3px; }
    .bulk-tier__qty { font-size: 11px; }
    .bulk-tier__price { font-size: var(--fs-base); }
    .bulk-tier__each { font-size: 9px; }
    .bulk-tier__save { font-size: 10px; }

    /* Hero actions */
    .product-hero__actions { margin-top: var(--sp-md); }
    .product-hero__cart { width: 100%; justify-content: center; }
    .product-hero__coa { font-size: var(--fs-xs); }

    /* Specs */
    .specs-table th,
    .specs-table td { padding: .5rem .6rem; font-size: var(--fs-xs); }
    .specs-table__mono { font-size: 10px; word-break: break-all; }

    /* Product content */
    .product-content-grid { gap: var(--sp-lg); }
    .content-block__text { font-size: var(--fs-sm); }

    /* Related */
    .related-grid { grid-template-columns: 1fr; gap: var(--sp-sm); }
    .related-card { padding: var(--sp-md); }
    .related-card__icon { width: 48px; height: 48px; flex-shrink: 0; }
    .related-card__name { font-size: var(--fs-sm); }
    .related-card__price { font-size: var(--fs-xs); }

    /* ── Cart ── */
    .cart-table { font-size: var(--fs-xs); }
    .cart-table th { font-size: 10px; padding: .5rem .3rem; }
    .cart-table td { padding: .5rem .3rem; font-size: var(--fs-xs); }
    .cart-row__name { font-size: var(--fs-xs); font-weight: 600; }
    .cart-row__qty-btn { width: 36px; height: 36px; font-size: 16px; }
    .cart-row__qty-val { font-size: var(--fs-xs); min-width: 20px; }
    .cart-row__remove { font-size: 12px; }
    .cart-row__original { display: none; }
    .cart-row__discount { font-size: 10px; display: block; }
    .cart-summary { padding: var(--sp-md); }
    .cart-summary__total span:last-child { font-size: var(--fs-lg); }

    /* ── Checkout ── */
    .form-row { grid-template-columns: 1fr; gap: 0; }
    .form-row--3 { grid-template-columns: 1fr; }
    .checkout-form__heading,
    .checkout-review__heading { font-size: var(--fs-lg); }
    .checkout-review { padding: var(--sp-md); border-radius: var(--radius); }
    .checkout-review__item { gap: .5rem; }
    .checkout-review__item-name { font-size: var(--fs-sm); }
    .checkout-review__item-meta { font-size: var(--fs-xs); }
    .checkout-review__item-price { font-size: var(--fs-sm); }
    .checkout-review__cta { font-size: var(--fs-sm); }

    /* ── Checkout Success ── */
    .checkout-success-page { padding: calc(var(--header-h) + 1.5rem) 0 2rem; }
    .checkout-success-page .checkout-success__inner { padding: var(--sp-xl) var(--sp-md); }
    .checkout-success__icon { width: 64px; height: 64px; }
    .checkout-success__icon svg { width: 40px; height: 40px; }
    .checkout-success__title { font-size: var(--fs-xl); }
    .checkout-success__text { font-size: var(--fs-sm); }
    .checkout-success__details { gap: .4rem; }
    .checkout-success__detail-item { font-size: var(--fs-xs); }

    /* ── Home product cards ── */
    .product-card { padding: var(--sp-md); }
    .product-card__icon { width: 44px; height: 44px; margin-bottom: var(--sp-md); }
    .product-card__icon svg { width: 22px; height: 22px; }
    .product-card__name { font-size: var(--fs-base); }
    .product-card__desc { font-size: var(--fs-xs); margin-bottom: var(--sp-md); }
    .product-card__tag { font-size: 0.6rem; padding: .2rem .5rem; }
    .products__cta { margin-top: var(--sp-2xl); }

    /* ── Contact ── */
    .contact-grid { gap: var(--sp-lg); }

    /* ── Steps grid ── */
    .steps-grid { gap: var(--sp-md); }

    /* ── Affiliates ── */
    .affiliates__title { font-size: var(--fs-xl); }
    .aff-steps { gap: var(--sp-md); }
    .aff-benefits { gap: var(--sp-md); }
    .aff-forms-grid { gap: var(--sp-lg); }

    /* ── Footer ── */
    .footer__grid { gap: var(--sp-lg); }
    .footer__brand-desc { font-size: var(--fs-xs); }
    .footer__link { font-size: var(--fs-sm); }
    .footer__heading { font-size: var(--fs-sm); margin-bottom: var(--sp-sm); }
    .footer__bottom { flex-direction: column; text-align: center; gap: .5rem; }
    .footer__bottom-text { font-size: var(--fs-xs); }

    /* ── Breadcrumb ── */
    .breadcrumb__list { font-size: var(--fs-xs); gap: .3rem; flex-wrap: wrap; }

    /* ── FAQ ── */
    .faq-item__q { padding: var(--sp-md); font-size: var(--fs-sm); }
    .faq-item__a { padding: 0 var(--sp-md) var(--sp-md); }
    .faq-cta { padding: var(--sp-lg); margin-top: var(--sp-2xl); }

    /* ── Quality ── */
    .quality-grid { grid-template-columns: 1fr; }
    .quality-card { padding: var(--sp-lg); }
    .quality-card__icon { width: 44px; height: 44px; margin-bottom: var(--sp-md); }
    .quality-card__title { font-size: var(--fs-base); }

    /* ── Legal pages ── */
    .legal-section__title { font-size: var(--fs-base); }
    .legal-section { margin-bottom: var(--sp-xl); }

    /* ── Tracking ── */
    .tracking-form-card { padding: var(--sp-lg); }
    .tracking-form-card__title { font-size: var(--fs-lg); }
    .tracking-result__header { flex-direction: column; align-items: flex-start; }

    /* ── Search ── */
    .search-bar { padding: 0 var(--sp-md); }
    .search-bar__input { padding: var(--sp-md) var(--sp-sm); font-size: var(--fs-sm); }
    .search-bar__kbd { display: none; }
    .search-results { grid-template-columns: 1fr; }
    .search-result-card { flex-direction: row; padding: var(--sp-md); gap: var(--sp-md); }
    .search-result-card__img { width: 64px; height: 64px; }
    .search-result-card__name { font-size: var(--fs-sm); }
    .search-result-card__cat { font-size: 0.6rem; padding: 1px 6px; }

    /* ── Account ── */
    .account-grid { grid-template-columns: 1fr; }
    .account-card { padding: var(--sp-lg); }

    /* ── Buttons ── */
    .btn--lg { padding: .65rem 1.5rem; font-size: var(--fs-sm); }
    .btn--sm { padding: .35rem .6rem; font-size: var(--fs-xs); }

    /* ── Disclaimer ── */
    .product-disclaimer p { font-size: var(--fs-xs); }

    /* ── Product not found ── */
    .product-not-found { padding: calc(var(--header-h) + 2rem) 1rem 2rem; }
    .product-not-found__title { font-size: var(--fs-xl); }
    .product-not-found__desc { font-size: var(--fs-sm); }
    .product-not-found__actions { flex-direction: column; }
    .product-not-found__actions .btn { width: 100%; justify-content: center; }

    .content-block__title--center { margin-bottom: var(--sp-lg); }

    /* ── Trust grid ── */
    .trust__grid { gap: var(--sp-md); }
    .trust-card__title { font-size: var(--fs-sm); }
    .trust-card__text { font-size: var(--fs-xs); }
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE — SMALL PHONES (<375px)
   ══════════════════════════════════════════════════════════ */
@media (max-width: 374px) {
    .container { padding: 0 .75rem; }
    .hero__title { font-size: var(--fs-xl); }
    .catalog-card { grid-template-columns: 72px 1fr; gap: 0 .5rem; padding: .6rem; }
    .catalog-card__image { width: 72px; }
    .bulk-pricing__tiers { grid-template-columns: 1fr; }
    .bulk-tier { border-right: none; border-bottom: 1px solid var(--c-border); flex-direction: row; justify-content: space-between; padding: .5rem .75rem; }
    .bulk-tier:last-child { border-bottom: none; }
    .bulk-tier__badge { position: static; border-radius: 4px; }
    .product-doses__options { flex-direction: column; }
    .product-doses__btn { width: 100%; flex-direction: row; justify-content: space-between; min-width: unset; }
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE — TABLET (768px+)
   ══════════════════════════════════════════════════════════ */
@media (min-width: 768px) {
    .hero__title { font-size: var(--fs-4xl); }
    .section-header__title { font-size: var(--fs-3xl); }

    .page-hero__title { font-size: var(--fs-4xl); }
    .steps-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1.2fr .8fr; }
    .contact-form__submit { width: auto; }
    .affiliates__title { font-size: var(--fs-3xl); }

    .catalog-grid { grid-template-columns: repeat(2, 1fr); }
    .catalog-card {
        grid-template-columns: 120px 1fr;
        gap: 0 var(--sp-lg);
        padding: var(--sp-lg);
    }
    .catalog-card__image { width: 120px; }
    .catalog-card__name { font-size: var(--fs-base); }
    .catalog-card__desc { font-size: var(--fs-sm); -webkit-line-clamp: 3; }

    .product-hero__grid { grid-template-columns: 340px 1fr; align-items: start; }
    .product-content-grid { grid-template-columns: repeat(2, 1fr); }
    .related-grid { grid-template-columns: repeat(3, 1fr); }

    .cart-grid { grid-template-columns: 1fr 320px; }
    .checkout-grid { grid-template-columns: 1fr 360px; }
    .page-hero--sm .page-hero__title { font-size: var(--fs-3xl); }
    .aff-steps { grid-template-columns: repeat(3, 1fr); }
    .aff-benefits { grid-template-columns: repeat(2, 1fr); }
    .aff-forms-grid { grid-template-columns: 1.2fr .8fr; }
    .affd-stats { grid-template-columns: repeat(3, 1fr); }
    .tier-levels__grid { grid-template-columns: repeat(5, 1fr); }
    .tracking-wrap { grid-template-columns: 1.2fr .8fr; }

    .products__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .trust__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer__grid {
        grid-template-columns: 1.5fr 1fr 1fr 1fr;
    }

    .footer__newsletter-inner {
        grid-template-columns: 1fr 1fr;
    }
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE — DESKTOP (1024px+)
   ══════════════════════════════════════════════════════════ */
@media (min-width: 1024px) {
    .header__nav {
        display: flex;
    }

    .header__toggle {
        display: none;
    }

    .header__actions .btn--outline {
        display: inline-flex;
    }

    .hero__inner {
        grid-template-columns: 1.1fr .9fr;
    }

    .hero__visual {
        display: flex;
    }

    .hero__title {
        font-size: var(--fs-5xl);
    }

    .products__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .trust__grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .affiliates__inner {
        grid-template-columns: 1.2fr .8fr;
    }

    .catalog-grid { grid-template-columns: repeat(3, 1fr); }
    .product-hero__grid { grid-template-columns: 400px 1fr; }
    .product-hero__name { font-size: var(--fs-4xl); }
    .product-gallery__thumb { width: 72px; height: 72px; }
}

/* ══════════════════════════════════════════════════════════
   ANIMATIONS — Intersection Observer targets
   ══════════════════════════════════════════════════════════ */
.fade-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.fade-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
    html { scroll-behavior: auto; }
}

/* ── Tier System Mobile ── */
@media (max-width: 767px) {
    .tier-card { padding: var(--sp-lg); }
    .tier-card__top { flex-direction: column; text-align: center; gap: var(--sp-md); }
    .tier-card__ring { width: 90px; height: 90px; }
    .tier-card__ring-score { font-size: 1.5rem; }
    .tier-card__name { font-size: var(--fs-xl); justify-content: center; }
    .tier-card__rate-pct { font-size: 2rem; }
    .tier-card__mbar-wrap { flex-direction: column; align-items: stretch; gap: .35rem; }
    .tier-card__next-text { font-size: var(--fs-xs); flex-wrap: wrap; justify-content: center; }
    .tier-levels__grid { grid-template-columns: repeat(2, 1fr); }
    .tier-level:last-child { grid-column: span 2; }
    .tier-rules__grid { grid-template-columns: 1fr; }
    .tier-road__slabel { font-size: .55rem; }
    .affd-stats { grid-template-columns: repeat(2, 1fr); }
}