/* =============================================================
   GlowStrong — Main Design System
   Luxury medical wellness / premium biotech aesthetic
   Mobile-first, WooCommerce + Elementor compatible
============================================================= */

:root {
    /* Brand palette */
    --gs-navy: #0a1f3c;
    --gs-navy-deep: #061427;
    --gs-navy-soft: #12294a;
    --gs-silver: #c5ccd6;
    --gs-silver-metallic: #aab4c2;
    --gs-silver-light: #e7ebf0;
    --gs-red: #9e1b2f;
    --gs-red-bright: #c3122b;
    --gs-white: #ffffff;
    --gs-light-gray: #f4f6f9;
    --gs-charcoal: #1c2430;
    --gs-charcoal-soft: #3a4452;

    /* Functional tokens */
    --gs-text: #1c2430;
    --gs-muted: #5d6776;
    --gs-line: #e2e7ee;
    --gs-bg: #ffffff;

    /* Gradients */
    --gs-grad-navy: linear-gradient(135deg, #0a1f3c 0%, #12294a 60%, #061427 100%);
    --gs-grad-silver: linear-gradient(135deg, #e7ebf0 0%, #aab4c2 50%, #c5ccd6 100%);
    --gs-grad-red: linear-gradient(135deg, #c3122b 0%, #9e1b2f 100%);

    /* Typography */
    --gs-font-display: "Cormorant Garamond", Georgia, serif;
    --gs-font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

    /* Spacing / radius / shadow */
    --gs-radius: 14px;
    --gs-radius-sm: 8px;
    --gs-radius-lg: 24px;
    --gs-shadow-sm: 0 2px 10px rgba(10, 31, 60, 0.06);
    --gs-shadow: 0 16px 40px rgba(10, 31, 60, 0.10);
    --gs-shadow-lg: 0 30px 70px rgba(10, 31, 60, 0.18);
    --gs-container: 1240px;
    --gs-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Base ---------- */
body {
    font-family: var(--gs-font-body);
    color: var(--gs-text);
    background: var(--gs-bg);
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
    font-family: var(--gs-font-display);
    font-weight: 600;
    line-height: 1.12;
    color: var(--gs-navy);
    letter-spacing: -0.01em;
    margin: 0 0 0.5em;
}

p { margin: 0 0 1em; }

a { color: var(--gs-red); transition: color 0.25s var(--gs-ease); }
a:hover { color: var(--gs-red-bright); }

.gs-container {
    width: 100%;
    max-width: var(--gs-container);
    margin: 0 auto;
    padding: 0 20px;
}

.gs-site-content { overflow: clip; }

/* ---------- Eyebrow / section heads ---------- */
.gs-eyebrow {
    display: inline-block;
    font-family: var(--gs-font-body);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--gs-red);
    margin-bottom: 0.9rem;
}
.gs-eyebrow--light { color: var(--gs-silver-metallic); }

.gs-section { padding: clamp(3.5rem, 7vw, 6.5rem) 0; }
.gs-section--alt { background: var(--gs-light-gray); }

.gs-section__head { max-width: 720px; margin: 0 auto clamp(2rem, 4vw, 3.25rem); text-align: center; }
.gs-section__head--row {
    display: flex; align-items: flex-end; justify-content: space-between;
    text-align: left; max-width: none; gap: 1rem;
}
.gs-section__title { font-size: clamp(2rem, 4vw, 3rem); }
.gs-section__lead { color: var(--gs-muted); font-size: 1.05rem; }

/* ---------- Buttons ---------- */
.gs-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    font-family: var(--gs-font-body);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.01em;
    padding: 0.85rem 1.6rem;
    border-radius: 100px;
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: all 0.3s var(--gs-ease);
    text-align: center;
    line-height: 1;
}
.gs-btn svg { width: 18px; height: 18px; }
.gs-btn--primary {
    background: var(--gs-grad-red);
    color: var(--gs-white);
    box-shadow: 0 10px 26px rgba(158, 27, 47, 0.28);
}
.gs-btn--primary:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(158, 27, 47, 0.36); color: #fff; }
.gs-btn--dark { background: var(--gs-navy); color: #fff; }
.gs-btn--dark:hover { background: var(--gs-navy-deep); color: #fff; transform: translateY(-2px); }
.gs-btn--ghost { background: transparent; color: var(--gs-white); border-color: rgba(255,255,255,0.4); }
.gs-btn--ghost:hover { background: rgba(255,255,255,0.1); border-color: #fff; color: #fff; }
.gs-btn--lg { padding: 1.05rem 2.1rem; font-size: 1.02rem; }
.gs-btn--mini { padding: 0.6rem 1.05rem; font-size: 0.82rem; }

.gs-link-arrow {
    display: inline-flex; align-items: center; gap: 0.4rem;
    font-weight: 600; font-size: 0.9rem; color: var(--gs-navy);
    text-transform: uppercase; letter-spacing: 0.08em;
}
.gs-link-arrow svg { width: 18px; height: 18px; transition: transform 0.3s var(--gs-ease); }
.gs-link-arrow:hover { color: var(--gs-red); }
.gs-link-arrow:hover svg { transform: translateX(5px); }

/* ---------- Announce bar ---------- */
.gs-announce {
    background: var(--gs-navy-deep);
    color: var(--gs-silver);
    font-size: 0.8rem;
    letter-spacing: 0.04em;
}
.gs-announce__inner { display: flex; align-items: center; justify-content: center; gap: 0.6rem; padding: 0.55rem 20px; }
.gs-announce p { margin: 0; }
.gs-announce__pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--gs-red-bright); box-shadow: 0 0 0 0 rgba(195,18,43,0.6); animation: gsPulse 2s infinite; }
@keyframes gsPulse {
    0% { box-shadow: 0 0 0 0 rgba(195,18,43,0.55); }
    70% { box-shadow: 0 0 0 8px rgba(195,18,43,0); }
    100% { box-shadow: 0 0 0 0 rgba(195,18,43,0); }
}

/* ---------- Header ---------- */
.gs-header {
    position: sticky; top: 0; z-index: 200;
    background: rgba(255,255,255,0.92);
    backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid var(--gs-line);
    transition: box-shadow 0.3s var(--gs-ease);
}
.gs-header.is-scrolled { box-shadow: var(--gs-shadow-sm); }
.gs-header__inner { display: flex; align-items: center; gap: 1rem; height: 76px; }
.gs-header__brand { margin-right: auto; }

.gs-logo { display: inline-flex; align-items: center; gap: 0.6rem; }
.gs-logo__mark {
    display: grid; place-items: center;
    width: 40px; height: 40px; border-radius: 11px;
    background: var(--gs-grad-navy); color: var(--gs-silver);
}
.gs-logo__mark svg { width: 24px; height: 24px; }
.gs-logo__text {
    font-family: var(--gs-font-display); font-weight: 700; font-size: 1.55rem;
    color: var(--gs-navy); letter-spacing: -0.02em; line-height: 1;
}
.gs-logo__text span { color: var(--gs-red); }
.gs-logo--light .gs-logo__text { color: #fff; }
.gs-logo--light .gs-logo__text span { color: var(--gs-silver-metallic); }

/* Nav */
.gs-nav__menu { display: flex; align-items: center; gap: 0.4rem; list-style: none; margin: 0; padding: 0; }
.gs-nav__menu li { position: relative; }
.gs-nav__menu a {
    display: block; padding: 0.6rem 0.95rem; font-size: 0.92rem; font-weight: 500;
    color: var(--gs-charcoal); border-radius: 8px; transition: all 0.25s var(--gs-ease);
}
.gs-nav__menu a:hover, .gs-nav__menu .current-menu-item > a {
    color: var(--gs-navy); background: var(--gs-light-gray);
}
/* Submenus */
.gs-nav__menu ul.sub-menu {
    position: absolute; top: 100%; left: 0; min-width: 230px;
    background: #fff; border: 1px solid var(--gs-line); border-radius: var(--gs-radius);
    box-shadow: var(--gs-shadow); padding: 0.5rem; list-style: none; margin: 0.5rem 0 0;
    opacity: 0; visibility: hidden; transform: translateY(8px);
    transition: all 0.25s var(--gs-ease); z-index: 50;
}
.gs-nav__menu li:hover > ul.sub-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.gs-nav__menu ul.sub-menu a { padding: 0.6rem 0.8rem; }

.gs-header__actions { display: flex; align-items: center; gap: 0.4rem; }
.gs-header__icon-btn {
    display: grid; place-items: center; width: 42px; height: 42px;
    border: none; background: transparent; color: var(--gs-navy); cursor: pointer;
    border-radius: 10px; position: relative; transition: background 0.25s var(--gs-ease);
}
.gs-header__icon-btn:hover { background: var(--gs-light-gray); }
.gs-header__icon-btn svg { width: 22px; height: 22px; }
.gs-header__cart-count {
    position: absolute; top: 4px; right: 4px; min-width: 18px; height: 18px;
    padding: 0 4px; border-radius: 9px; background: var(--gs-red); color: #fff;
    font-size: 0.68rem; font-weight: 700; display: grid; place-items: center; line-height: 1;
}
.gs-header__cta { margin-left: 0.4rem; }
.gs-header__burger { display: none; border: none; background: transparent; color: var(--gs-navy); cursor: pointer; padding: 6px; }
.gs-header__burger svg { width: 26px; height: 26px; }

/* Search panel */
.gs-search-panel {
    max-height: 0; overflow: hidden; background: #fff; border-top: 1px solid transparent;
    transition: max-height 0.4s var(--gs-ease), border-color 0.3s;
}
.gs-search-panel.is-open { max-height: 140px; border-top-color: var(--gs-line); }
.gs-search-panel .gs-container { padding-top: 1.2rem; padding-bottom: 1.2rem; }
.gs-search-panel form { display: flex; gap: 0.6rem; }
.gs-search-panel input[type="search"], .gs-search-panel input[type="text"] {
    flex: 1; padding: 0.9rem 1.1rem; border: 1.5px solid var(--gs-line); border-radius: 100px; font-size: 1rem;
}
.gs-search-panel button {
    padding: 0.9rem 1.6rem; border: none; background: var(--gs-navy); color: #fff;
    border-radius: 100px; font-weight: 600; cursor: pointer;
}

.gs-mobile-overlay {
    position: fixed; inset: 0; background: rgba(6,20,39,0.5); backdrop-filter: blur(2px);
    opacity: 0; visibility: hidden; transition: all 0.3s var(--gs-ease); z-index: 190;
}
.gs-mobile-overlay.is-open { opacity: 1; visibility: visible; }

/* ---------- Hero ---------- */
.gs-hero { position: relative; background: var(--gs-grad-navy); color: #fff; overflow: hidden; }
.gs-hero__glow {
    position: absolute; width: 600px; height: 600px; border-radius: 50%;
    background: radial-gradient(circle, rgba(195,18,43,0.35) 0%, transparent 70%);
    top: -180px; right: -120px; filter: blur(20px);
}
.gs-hero__inner {
    position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr 0.9fr;
    gap: 3rem; align-items: center; padding: clamp(3.5rem, 8vw, 7rem) 20px;
}
.gs-hero__title { color: #fff; font-size: clamp(2.6rem, 6vw, 4.6rem); margin-bottom: 1.2rem; }
.gs-hero__title span { display: block; background: var(--gs-grad-silver); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.gs-hero__sub { color: var(--gs-silver); font-size: 1.12rem; max-width: 520px; margin-bottom: 2rem; }
.gs-hero__cta { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 2.6rem; }
.gs-hero__stats { display: flex; gap: 2.4rem; list-style: none; margin: 0; padding: 0; }
.gs-hero__stats li { display: flex; flex-direction: column; }
.gs-hero__stats strong { font-family: var(--gs-font-display); font-size: 2.2rem; color: #fff; line-height: 1; }
.gs-hero__stats span { font-size: 0.82rem; color: var(--gs-silver-metallic); letter-spacing: 0.05em; margin-top: 0.3rem; }

/* Hero visual */
.gs-hero__visual { position: relative; height: 420px; display: grid; place-items: center; }
.gs-hero__vial { position: relative; z-index: 3; width: 88px; height: 230px; animation: gsFloat 6s ease-in-out infinite; }
.gs-hero__vial-cap { width: 56px; height: 34px; margin: 0 auto; background: var(--gs-grad-silver); border-radius: 8px 8px 4px 4px; }
.gs-hero__vial-body {
    width: 88px; height: 196px; margin-top: -4px; border-radius: 14px 14px 24px 24px;
    background: rgba(255,255,255,0.10); border: 1.5px solid rgba(197,204,214,0.4);
    backdrop-filter: blur(4px); overflow: hidden; position: relative;
}
.gs-hero__vial-liquid {
    position: absolute; bottom: 0; left: 0; right: 0; height: 62%;
    background: linear-gradient(180deg, rgba(195,18,43,0.5), rgba(158,27,47,0.85));
}
.gs-hero__vial-liquid::after {
    content: ""; position: absolute; top: 0; left: 0; right: 0; height: 8px;
    background: rgba(255,255,255,0.35); border-radius: 50%;
}
.gs-hero__ring { position: absolute; border: 1.5px solid rgba(197,204,214,0.25); border-radius: 50%; }
.gs-hero__ring--1 { width: 300px; height: 300px; animation: gsSpin 22s linear infinite; }
.gs-hero__ring--2 { width: 220px; height: 220px; border-style: dashed; animation: gsSpin 16s linear infinite reverse; }
.gs-hero__molecule { position: absolute; bottom: 10px; right: 30px; color: rgba(197,204,214,0.5); }
.gs-hero__molecule svg { width: 64px; height: 64px; }
@keyframes gsFloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-16px); } }
@keyframes gsSpin { to { transform: rotate(360deg); } }

/* ---------- Trust bar ---------- */
.gs-trust-bar { background: var(--gs-navy); color: #fff; }
.gs-trust-bar__list {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
    list-style: none; margin: 0; padding: 1.6rem 0;
}
.gs-trust-bar__item { display: flex; align-items: center; gap: 0.85rem; justify-content: center; }
.gs-trust-bar__icon { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 12px; background: rgba(197,204,214,0.12); color: var(--gs-silver-metallic); flex-shrink: 0; }
.gs-trust-bar__icon svg { width: 24px; height: 24px; }
.gs-trust-bar__copy { display: flex; flex-direction: column; }
.gs-trust-bar__copy strong { font-size: 0.92rem; font-weight: 600; }
.gs-trust-bar__copy em { font-size: 0.78rem; font-style: normal; color: var(--gs-silver-metallic); }

/* ---------- Category grid ---------- */
.gs-category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.gs-category-card {
    display: flex; flex-direction: column; background: #fff; border: 1px solid var(--gs-line);
    border-radius: var(--gs-radius-lg); overflow: hidden; transition: all 0.35s var(--gs-ease);
}
.gs-category-card:hover { transform: translateY(-6px); box-shadow: var(--gs-shadow); border-color: transparent; }
.gs-category-card__media {
    height: 170px; background: var(--gs-grad-navy); background-size: cover; background-position: center;
    display: grid; place-items: center; position: relative;
}
.gs-category-card__media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent, rgba(6,20,39,0.35)); }
.gs-category-card__icon { color: var(--gs-silver-metallic); position: relative; z-index: 2; }
.gs-category-card__icon svg { width: 54px; height: 54px; }
.gs-category-card__body { padding: 1.5rem; }
.gs-category-card__body h3 { font-size: 1.4rem; margin-bottom: 0.3rem; }
.gs-category-card__count { display: block; font-size: 0.82rem; color: var(--gs-muted); margin-bottom: 1rem; }
.gs-category-card__cta { display: inline-flex; align-items: center; gap: 0.4rem; font-weight: 600; font-size: 0.85rem; color: var(--gs-red); text-transform: uppercase; letter-spacing: 0.08em; }
.gs-category-card__cta svg { width: 16px; height: 16px; transition: transform 0.3s var(--gs-ease); }
.gs-category-card:hover .gs-category-card__cta svg { transform: translateX(4px); }

/* ---------- Product grid + cards ---------- */
.gs-product-grid, ul.products.gs-product-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; list-style: none; margin: 0; padding: 0;
}
.gs-product-card {
    position: relative; display: flex; flex-direction: column; background: #fff;
    border: 1px solid var(--gs-line); border-radius: var(--gs-radius); overflow: hidden;
    transition: all 0.35s var(--gs-ease); list-style: none; margin: 0;
}
.gs-product-card:hover { transform: translateY(-6px); box-shadow: var(--gs-shadow); border-color: transparent; }
.gs-product-card__badge {
    position: absolute; top: 12px; left: 12px; z-index: 3;
    background: var(--gs-red); color: #fff; font-size: 0.68rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.08em; padding: 0.32rem 0.7rem; border-radius: 100px;
}
.gs-product-card__badge--feature { background: var(--gs-navy); }
.gs-product-card__media {
    position: relative; display: grid; place-items: center; aspect-ratio: 1/1;
    background: linear-gradient(160deg, var(--gs-light-gray), #fff); overflow: hidden;
}
.gs-product-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--gs-ease); }
.gs-product-card:hover .gs-product-card__media img { transform: scale(1.05); }
.gs-product-card__placeholder { color: var(--gs-silver-metallic); }
.gs-product-card__placeholder svg { width: 70px; height: 70px; }
.gs-product-card__shine {
    position: absolute; top: 0; left: -60%; width: 50%; height: 100%;
    background: linear-gradient(110deg, transparent, rgba(255,255,255,0.55), transparent);
    transform: skewX(-20deg); transition: left 0.7s var(--gs-ease);
}
.gs-product-card:hover .gs-product-card__shine { left: 130%; }
.gs-product-card__body { padding: 1.2rem; display: flex; flex-direction: column; flex: 1; }
.gs-product-card__cat { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--gs-muted); margin-bottom: 0.4rem; }
.gs-product-card__title { font-size: 1.25rem; margin-bottom: 0.5rem; line-height: 1.2; }
.gs-product-card__title a { color: var(--gs-navy); }
.gs-product-card__title a:hover { color: var(--gs-red); }
.gs-product-card__purity { display: flex; align-items: center; gap: 0.4rem; font-size: 0.78rem; color: #1f7a4d; margin-bottom: 1rem; }
.gs-product-card__purity svg { width: 15px; height: 15px; }
.gs-product-card__foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; }
.gs-product-card__price { font-weight: 700; font-size: 1.2rem; color: var(--gs-navy); }
.gs-product-card__price del { color: var(--gs-muted); font-weight: 400; font-size: 0.9rem; margin-right: 0.3rem; }
.gs-product-card__price ins { text-decoration: none; color: var(--gs-red); }

/* ---------- Why GlowStrong ---------- */
.gs-why__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; }
.gs-why__card {
    background: #fff; border: 1px solid var(--gs-line); border-radius: var(--gs-radius-lg);
    padding: 2rem 1.6rem; transition: all 0.35s var(--gs-ease);
}
.gs-why__card:hover { transform: translateY(-6px); box-shadow: var(--gs-shadow); }
.gs-why__icon {
    display: grid; place-items: center; width: 60px; height: 60px; border-radius: 16px;
    background: var(--gs-grad-navy); color: var(--gs-silver-metallic); margin-bottom: 1.2rem;
}
.gs-why__icon svg { width: 30px; height: 30px; }
.gs-why__card h3 { font-size: 1.35rem; }
.gs-why__card p { color: var(--gs-muted); font-size: 0.95rem; margin: 0; }

/* ---------- Testing section ---------- */
.gs-testing { background: var(--gs-grad-navy); color: #fff; padding: clamp(3.5rem, 7vw, 6.5rem) 0; }
.gs-testing__inner { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 3rem; align-items: center; }
.gs-testing h2 { color: #fff; font-size: clamp(1.9rem, 3.6vw, 2.8rem); }
.gs-testing p { color: var(--gs-silver); }
.gs-testing__visual { display: grid; place-items: center; }
.gs-testing__chart {
    width: 100%; max-width: 360px; aspect-ratio: 4/3; border-radius: var(--gs-radius-lg);
    background: rgba(255,255,255,0.05); border: 1px solid rgba(197,204,214,0.2);
    position: relative; display: grid; align-items: end; padding: 1.6rem; overflow: hidden;
}
.gs-testing__chart span { position: absolute; top: 1rem; left: 1.2rem; font-size: 0.75rem; color: var(--gs-silver-metallic); }
.gs-testing__peak {
    width: 100%; height: 60%;
    background:
        linear-gradient(90deg, transparent 46%, var(--gs-red-bright) 49%, var(--gs-red-bright) 51%, transparent 54%),
        linear-gradient(90deg, transparent 20%, rgba(197,204,214,0.4) 21%, transparent 22%),
        linear-gradient(90deg, transparent 74%, rgba(197,204,214,0.4) 75%, transparent 76%);
    border-bottom: 1.5px solid rgba(197,204,214,0.5);
}
.gs-checklist { list-style: none; margin: 1.5rem 0 2rem; padding: 0; display: grid; gap: 0.75rem; }
.gs-checklist li { display: flex; align-items: center; gap: 0.7rem; color: var(--gs-silver-light); }
.gs-checklist svg { width: 20px; height: 20px; color: var(--gs-red-bright); flex-shrink: 0; }

/* ---------- COA verify ---------- */
.gs-coa-verify__card {
    display: grid; grid-template-columns: auto 1fr auto; gap: 2rem; align-items: center;
    background: #fff; border: 1px solid var(--gs-line); border-radius: var(--gs-radius-lg);
    padding: 2.4rem; box-shadow: var(--gs-shadow-sm);
}
.gs-coa-verify__icon { display: grid; place-items: center; width: 84px; height: 84px; border-radius: 20px; background: var(--gs-light-gray); color: var(--gs-navy); }
.gs-coa-verify__icon svg { width: 42px; height: 42px; }
.gs-coa-verify__body h2 { font-size: 1.7rem; margin-bottom: 0.4rem; }
.gs-coa-verify__body p { color: var(--gs-muted); margin: 0; }
.gs-coa-verify__form { display: flex; gap: 0.6rem; }
.gs-coa-verify__form input {
    padding: 0.9rem 1.1rem; border: 1.5px solid var(--gs-line); border-radius: 100px; font-size: 0.95rem; min-width: 200px;
}

/* ---------- Research transparency ---------- */
.gs-research__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.gs-research__links { display: flex; flex-wrap: wrap; gap: 1.5rem; margin-top: 1.5rem; }

/* ---------- Disclaimer ---------- */
.gs-disclaimer {
    display: flex; gap: 1rem; align-items: flex-start;
    background: rgba(158,27,47,0.06); border: 1px solid rgba(158,27,47,0.18);
    border-left: 4px solid var(--gs-red); border-radius: var(--gs-radius-sm); padding: 1.2rem 1.4rem;
}
.gs-disclaimer__icon { color: var(--gs-red); flex-shrink: 0; }
.gs-disclaimer__icon svg { width: 26px; height: 26px; }
.gs-disclaimer p { margin: 0; font-size: 0.88rem; color: var(--gs-charcoal); }
.gs-disclaimer--compact p { font-size: 0.8rem; }

/* ---------- Newsletter ---------- */
.gs-newsletter { background: var(--gs-grad-navy); color: #fff; }
.gs-newsletter__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; padding: clamp(3rem, 6vw, 5rem) 0; }
.gs-newsletter h2 { color: #fff; font-size: clamp(1.7rem, 3.4vw, 2.6rem); }
.gs-newsletter p { color: var(--gs-silver); margin: 0; }
.gs-newsletter__form { display: flex; flex-wrap: wrap; gap: 0.7rem; position: relative; }
.gs-newsletter__form input[type="email"] {
    flex: 1; min-width: 240px; padding: 1.05rem 1.3rem; border: 1.5px solid rgba(197,204,214,0.3);
    background: rgba(255,255,255,0.06); color: #fff; border-radius: 100px; font-size: 1rem;
}
.gs-newsletter__form input[type="email"]::placeholder { color: var(--gs-silver-metallic); }
.gs-newsletter__msg { width: 100%; margin: 0.3rem 0 0; font-size: 0.85rem; color: var(--gs-silver-metallic); }
.gs-newsletter__msg.is-success { color: #8fe3b5; }
.gs-newsletter__msg.is-error { color: #f6a5b0; }

/* ---------- Footer ---------- */
.gs-footer { background: var(--gs-navy-deep); color: var(--gs-silver); }
.gs-footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 2.5rem; padding: clamp(3rem, 6vw, 4.5rem) 20px 2.5rem; }
.gs-footer__tagline { font-size: 0.92rem; color: var(--gs-silver-metallic); max-width: 320px; margin: 1.2rem 0 1.4rem; }
.gs-footer__badges { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.gs-chip {
    display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.75rem; font-weight: 600;
    padding: 0.4rem 0.8rem; border-radius: 100px; background: rgba(197,204,214,0.1); color: var(--gs-silver);
}
.gs-chip svg { width: 16px; height: 16px; color: var(--gs-silver-metallic); }
.gs-footer-widget-title { color: #fff; font-family: var(--gs-font-body); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.14em; margin-bottom: 1.2rem; }
.gs-footer__menu { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.7rem; }
.gs-footer__menu a { color: var(--gs-silver-metallic); font-size: 0.92rem; }
.gs-footer__menu a:hover { color: #fff; }
.gs-footer__disclaimer { border-top: 1px solid rgba(197,204,214,0.12); padding: 1.8rem 0; }
.gs-footer__disclaimer .gs-disclaimer { background: rgba(255,255,255,0.03); border-color: rgba(197,204,214,0.18); border-left-color: var(--gs-red); }
.gs-footer__disclaimer .gs-disclaimer p { color: var(--gs-silver); }
.gs-footer__bar { border-top: 1px solid rgba(197,204,214,0.12); }
.gs-footer__bar-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem; padding: 1.4rem 0; font-size: 0.8rem; color: var(--gs-silver-metallic); }
.gs-footer__bar p { margin: 0; }

/* ---------- Back to top ---------- */
.gs-to-top {
    position: fixed; bottom: 24px; right: 24px; z-index: 150; width: 48px; height: 48px;
    border: none; border-radius: 50%; background: var(--gs-navy); color: #fff; cursor: pointer;
    display: grid; place-items: center; box-shadow: var(--gs-shadow); opacity: 0; visibility: hidden;
    transform: translateY(12px) rotate(-90deg); transition: all 0.3s var(--gs-ease);
}
.gs-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0) rotate(-90deg); }
.gs-to-top svg { width: 22px; height: 22px; }

/* ---------- Page hero ---------- */
.gs-page-hero { background: var(--gs-grad-navy); color: #fff; padding: clamp(2.6rem, 6vw, 4.6rem) 0; }
.gs-page-hero__title { color: #fff; font-size: clamp(2rem, 4.5vw, 3.4rem); }
.gs-page-hero__lead { color: var(--gs-silver); max-width: 680px; font-size: 1.05rem; }
.gs-page-hero--post .gs-article__meta, .gs-page-hero .gs-article__meta { display: flex; flex-wrap: wrap; gap: 1rem; color: var(--gs-silver-metallic); font-size: 0.85rem; margin-bottom: 0.6rem; }
.gs-page-hero .gs-article__meta a { color: var(--gs-silver); }

/* ---------- Page / article body ---------- */
.gs-page-body, .gs-blog { padding: clamp(2.5rem, 5vw, 4.5rem) 20px; }
.gs-main--narrow { max-width: 760px; margin: 0 auto; }
.gs-article__media { border-radius: var(--gs-radius-lg); overflow: hidden; margin-bottom: 2rem; }

.gs-prose { font-size: 1.04rem; color: var(--gs-charcoal); }
.gs-prose h2 { font-size: 1.9rem; margin-top: 1.8rem; }
.gs-prose h3 { font-size: 1.45rem; margin-top: 1.4rem; }
.gs-prose ul, .gs-prose ol { padding-left: 1.3rem; margin: 0 0 1.2rem; }
.gs-prose li { margin-bottom: 0.5rem; }
.gs-prose a { text-decoration: underline; }
.gs-prose blockquote {
    border-left: 4px solid var(--gs-red); background: var(--gs-light-gray);
    padding: 1rem 1.4rem; border-radius: 0 var(--gs-radius-sm) var(--gs-radius-sm) 0; margin: 1.5rem 0; font-style: italic;
}
.gs-prose table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; }
.gs-prose th, .gs-prose td { border: 1px solid var(--gs-line); padding: 0.7rem 0.9rem; text-align: left; }
.gs-prose th { background: var(--gs-light-gray); }

/* ---------- Blog grid ---------- */
.gs-blog__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem; }
.gs-post-card { background: #fff; border: 1px solid var(--gs-line); border-radius: var(--gs-radius-lg); overflow: hidden; display: flex; flex-direction: column; transition: all 0.35s var(--gs-ease); }
.gs-post-card:hover { transform: translateY(-6px); box-shadow: var(--gs-shadow); }
.gs-post-card__media { display: grid; place-items: center; aspect-ratio: 16/10; background: var(--gs-grad-navy); overflow: hidden; }
.gs-post-card__media img { width: 100%; height: 100%; object-fit: cover; }
.gs-post-card__placeholder { color: var(--gs-silver-metallic); }
.gs-post-card__placeholder svg { width: 56px; height: 56px; }
.gs-post-card__body { padding: 1.5rem; display: flex; flex-direction: column; flex: 1; }
.gs-post-card__meta { display: flex; gap: 1rem; font-size: 0.78rem; color: var(--gs-muted); margin-bottom: 0.6rem; }
.gs-post-card__title { font-size: 1.4rem; margin-bottom: 0.6rem; }
.gs-post-card__excerpt { color: var(--gs-muted); font-size: 0.95rem; flex: 1; }

/* ---------- Pagination ---------- */
.gs-pagination, .woocommerce-pagination { margin-top: 2.5rem; }
.gs-pagination .nav-links, .woocommerce-pagination ul { display: flex; gap: 0.5rem; justify-content: center; list-style: none; padding: 0; margin: 0; }
.gs-pagination a, .gs-pagination span,
.woocommerce-pagination a, .woocommerce-pagination span {
    display: grid; place-items: center; min-width: 44px; height: 44px; padding: 0 0.8rem;
    border: 1px solid var(--gs-line); border-radius: 10px; color: var(--gs-navy); font-weight: 600;
}
.gs-pagination .current, .woocommerce-pagination .current { background: var(--gs-navy); color: #fff; border-color: var(--gs-navy); }

/* ---------- Empty state ---------- */
.gs-empty-state { text-align: center; padding: 4rem 1rem; }
.gs-empty-state__icon { display: inline-grid; place-items: center; width: 80px; height: 80px; border-radius: 50%; background: var(--gs-light-gray); color: var(--gs-silver-metallic); margin-bottom: 1.2rem; }
.gs-empty-state__icon svg { width: 38px; height: 38px; }

/* =============================================================
   WooCommerce — Shop archive
============================================================= */
.gs-shop-wrapper { padding: clamp(2rem, 4vw, 3rem) 20px clamp(3rem, 6vw, 5rem); }
.gs-shop__toolbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.6rem; flex-wrap: wrap; }
.gs-shop__result-count { color: var(--gs-muted); font-size: 0.9rem; margin: 0; }
.gs-shop__ordering { display: flex; align-items: center; gap: 0.8rem; }
.gs-shop__ordering select, .woocommerce-ordering select {
    padding: 0.7rem 1rem; border: 1.5px solid var(--gs-line); border-radius: 100px; font-size: 0.9rem; background: #fff; cursor: pointer;
}
.gs-shop__filter-toggle { display: none; align-items: center; gap: 0.5rem; padding: 0.7rem 1.1rem; border: 1.5px solid var(--gs-line); border-radius: 100px; background: #fff; font-weight: 600; cursor: pointer; }
.gs-shop__filter-toggle svg { width: 18px; height: 18px; }

.gs-shop__layout { display: grid; grid-template-columns: 280px 1fr; gap: 2rem; align-items: start; }
.gs-shop__sidebar { position: sticky; top: 96px; display: grid; gap: 1.8rem; }
.gs-shop__sidebar-head { display: none; align-items: center; justify-content: space-between; }
.gs-shop__sidebar-close { background: none; border: none; font-size: 1.8rem; line-height: 1; cursor: pointer; color: var(--gs-navy); }
.gs-shop__widget { background: #fff; border: 1px solid var(--gs-line); border-radius: var(--gs-radius); padding: 1.4rem; }
.gs-widget-title, .gs-widget__title { font-family: var(--gs-font-body); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--gs-navy); margin: 0 0 1rem; }
.gs-shop__cat-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.2rem; }
.gs-shop__cat-item a { display: flex; align-items: center; justify-content: space-between; padding: 0.55rem 0.7rem; border-radius: 8px; color: var(--gs-charcoal); font-size: 0.92rem; }
.gs-shop__cat-item a span { color: var(--gs-muted); font-size: 0.8rem; }
.gs-shop__cat-item a:hover, .gs-shop__cat-item.is-active a { background: var(--gs-light-gray); color: var(--gs-navy); }
.gs-shop__assurance { display: flex; gap: 0.8rem; align-items: flex-start; background: var(--gs-grad-navy); color: #fff; padding: 1.3rem; border-radius: var(--gs-radius); }
.gs-shop__assurance svg { width: 28px; height: 28px; color: var(--gs-silver-metallic); flex-shrink: 0; }
.gs-shop__assurance p { margin: 0; font-size: 0.85rem; color: var(--gs-silver); }
.gs-shop__assurance strong { display: block; color: #fff; margin-bottom: 0.2rem; }

.gs-shop__results ul.products { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; list-style: none; margin: 0; padding: 0; }
.gs-shop .gs-trust-bar { border-radius: var(--gs-radius-lg); margin-top: 3rem; overflow: hidden; }
.gs-shop__disclaimer { margin-top: 2rem; }

/* WooCommerce loop add to cart button base */
.woocommerce ul.products li.product .button,
.gs-product-card .button {
    background: var(--gs-grad-red); color: #fff; border: none; border-radius: 100px;
    padding: 0.6rem 1.05rem; font-size: 0.82rem; font-weight: 600; cursor: pointer; transition: all 0.3s var(--gs-ease);
}
.woocommerce ul.products li.product .button:hover, .gs-product-card .button:hover { transform: translateY(-2px); }
.woocommerce ul.products li.product .added_to_cart { display: none; }

/* =============================================================
   WooCommerce — Single product
============================================================= */
.gs-single-product { padding: clamp(1.5rem, 3vw, 2.5rem) 0 0; }
.gs-single-product__breadcrumb { margin-bottom: 1.5rem; font-size: 0.85rem; color: var(--gs-muted); }
.gs-single-product__breadcrumb a { color: var(--gs-navy); }
.gs-single-product__top { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; margin-bottom: 3.5rem; }

.gs-single-product__gallery { position: relative; }
.gs-single-product__gallery .woocommerce-product-gallery { border: 1px solid var(--gs-line); border-radius: var(--gs-radius-lg); overflow: hidden; }
.gs-single-product__placeholder {
    display: grid; place-items: center; aspect-ratio: 1/1; gap: 0.6rem;
    background: linear-gradient(160deg, var(--gs-light-gray), #fff);
    border: 1px solid var(--gs-line); border-radius: var(--gs-radius-lg); color: var(--gs-silver-metallic);
}
.gs-single-product__placeholder svg { width: 100px; height: 100px; }
.gs-single-product__placeholder em { font-style: normal; font-size: 0.85rem; }
.gs-single-product__assure { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.2rem; }
.gs-single-product__assure .gs-chip { background: var(--gs-light-gray); color: var(--gs-charcoal); }
.gs-single-product__assure .gs-chip svg { color: var(--gs-red); }

.gs-single-product__cat { display: inline-block; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--gs-red); margin-bottom: 0.7rem; }
.gs-single-product__title { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 0.5rem; }
.gs-single-product__formula { font-family: var(--gs-font-body); font-size: 0.9rem; color: var(--gs-muted); margin-bottom: 1rem; }
.gs-single-product__price { font-size: 2rem; font-weight: 700; color: var(--gs-navy); margin: 1rem 0; }
.gs-single-product__price .woocommerce-Price-amount { font-size: 2rem; }
.gs-single-product__price del { color: var(--gs-muted); font-size: 1.2rem; font-weight: 400; }
.gs-single-product__price ins { text-decoration: none; color: var(--gs-red); }
.gs-single-product__short { color: var(--gs-charcoal); margin-bottom: 1.5rem; }

.gs-single-product__cart .quantity input { width: 70px; padding: 0.8rem; border: 1.5px solid var(--gs-line); border-radius: 10px; margin-right: 0.6rem; }
.gs-single-product__cart .single_add_to_cart_button, .gs-single-product__cart button.button {
    background: var(--gs-grad-red); color: #fff; border: none; border-radius: 100px;
    padding: 1rem 2.2rem; font-size: 1rem; font-weight: 600; cursor: pointer; transition: all 0.3s var(--gs-ease);
}
.gs-single-product__cart .single_add_to_cart_button:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(158,27,47,0.32); }
.gs-single-product__cart .variations { margin-bottom: 1rem; }
.gs-single-product__cart .variations td, .gs-single-product__cart .variations th { padding: 0.4rem 0.4rem 0.4rem 0; }
.gs-single-product__cart select { padding: 0.7rem 1rem; border: 1.5px solid var(--gs-line); border-radius: 10px; background: #fff; }

.gs-single-product__facts { list-style: none; margin: 1.8rem 0; padding: 1.4rem; border: 1px solid var(--gs-line); border-radius: var(--gs-radius); display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.gs-single-product__facts li { display: flex; align-items: center; gap: 0.6rem; font-size: 0.85rem; color: var(--gs-muted); }
.gs-single-product__facts li svg { width: 20px; height: 20px; color: var(--gs-red); flex-shrink: 0; }
.gs-single-product__facts li strong { margin-left: auto; color: var(--gs-navy); }
.gs-single-product__facts li span { min-width: 60px; }

.gs-single-product__detail { display: grid; gap: 2rem; margin-bottom: 3rem; }
.gs-pd-block { background: #fff; }
.gs-pd-block__title { display: flex; align-items: center; gap: 0.6rem; font-size: 1.6rem; margin-bottom: 1rem; }
.gs-pd-block__title svg { width: 26px; height: 26px; color: var(--gs-red); }
.gs-pd-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 1.6rem; }
.gs-pd-card { border: 1px solid var(--gs-line); border-radius: var(--gs-radius-lg); padding: 1.8rem; }
.gs-pd-card .gs-pd-block__title { font-size: 1.3rem; }

.gs-pd-coa {
    display: grid; grid-template-columns: auto 1fr auto; gap: 1.8rem; align-items: center;
    background: var(--gs-grad-navy); color: #fff; border-radius: var(--gs-radius-lg); padding: 2.2rem;
}
.gs-pd-coa__icon { display: grid; place-items: center; width: 70px; height: 70px; border-radius: 18px; background: rgba(197,204,214,0.12); color: var(--gs-silver-metallic); }
.gs-pd-coa__icon svg { width: 36px; height: 36px; }
.gs-pd-coa h2 { color: #fff; font-size: 1.6rem; margin-bottom: 0.3rem; }
.gs-pd-coa p { color: var(--gs-silver); margin: 0; }

/* Accordion */
.gs-accordion { border: 1px solid var(--gs-line); border-radius: var(--gs-radius); overflow: hidden; }
.gs-accordion__item + .gs-accordion__item { border-top: 1px solid var(--gs-line); }
.gs-accordion__head {
    width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1rem;
    padding: 1.2rem 1.4rem; background: #fff; border: none; cursor: pointer; text-align: left;
    font-family: var(--gs-font-body); font-size: 1rem; font-weight: 600; color: var(--gs-navy);
}
.gs-accordion__plus { position: relative; width: 18px; height: 18px; flex-shrink: 0; }
.gs-accordion__plus::before, .gs-accordion__plus::after { content: ""; position: absolute; background: var(--gs-red); transition: transform 0.3s var(--gs-ease); }
.gs-accordion__plus::before { top: 8px; left: 0; width: 18px; height: 2px; }
.gs-accordion__plus::after { left: 8px; top: 0; width: 2px; height: 18px; }
.gs-accordion__item.is-open .gs-accordion__plus::after { transform: scaleY(0); }
.gs-accordion__panel { max-height: 0; overflow: hidden; transition: max-height 0.35s var(--gs-ease); }
.gs-accordion__panel p { padding: 0 1.4rem 1.3rem; margin: 0; color: var(--gs-muted); }

.gs-single-product__related h2, .gs-single-product__related .products + h2 { font-size: 2rem; margin-bottom: 1.5rem; }
.gs-single-product__related { padding-bottom: 3rem; }
.gs-single-product__related ul.products { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; list-style: none; padding: 0; }

/* WooCommerce notices */
.woocommerce-message, .woocommerce-info, .woocommerce-error {
    border-radius: var(--gs-radius-sm); padding: 1rem 1.2rem; border-left: 4px solid var(--gs-navy);
    background: var(--gs-light-gray); list-style: none; margin-bottom: 1.5rem;
}
.woocommerce-message { border-left-color: #1f7a4d; }
.woocommerce-error { border-left-color: var(--gs-red); }

/* =============================================================
   Responsive
============================================================= */
@media (max-width: 1024px) {
    .gs-hero__inner { grid-template-columns: 1fr; }
    .gs-hero__visual { display: none; }
    .gs-category-grid, .gs-product-grid, .gs-why__grid,
    .gs-shop__results ul.products, .gs-single-product__related ul.products { grid-template-columns: repeat(2, 1fr); }
    .gs-blog__grid { grid-template-columns: repeat(2, 1fr); }
    .gs-testing__inner, .gs-research__inner, .gs-newsletter__inner,
    .gs-single-product__top { grid-template-columns: 1fr; }
    .gs-footer__grid { grid-template-columns: 1fr 1fr; }
    .gs-coa-verify__card { grid-template-columns: 1fr; text-align: center; }
    .gs-coa-verify__icon { margin: 0 auto; }
    .gs-coa-verify__form, .gs-pd-coa { grid-template-columns: 1fr; }
    .gs-pd-coa { text-align: center; }
    .gs-pd-coa__icon { margin: 0 auto; }

    /* Mobile nav */
    .gs-header__burger { display: inline-flex; }
    .gs-header__cta { display: none; }
    .gs-nav {
        position: fixed; top: 0; left: 0; bottom: 0; width: 84%; max-width: 360px; z-index: 195;
        background: #fff; padding: 5rem 1.5rem 2rem; transform: translateX(-100%);
        transition: transform 0.35s var(--gs-ease); overflow-y: auto; box-shadow: var(--gs-shadow-lg);
    }
    .gs-nav.is-open { transform: translateX(0); }
    .gs-nav__menu { flex-direction: column; align-items: stretch; gap: 0.2rem; }
    .gs-nav__menu a { padding: 0.85rem 1rem; font-size: 1.05rem; }
    .gs-nav__menu ul.sub-menu { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: none; border-left: 2px solid var(--gs-line); border-radius: 0; margin: 0 0 0 1rem; }

    /* Shop sidebar -> drawer */
    .gs-shop__layout { grid-template-columns: 1fr; }
    .gs-shop__filter-toggle { display: inline-flex; }
    .gs-shop__sidebar {
        position: fixed; top: 0; left: 0; bottom: 0; width: 86%; max-width: 360px; z-index: 195;
        background: #fff; padding: 1.5rem; transform: translateX(-100%); transition: transform 0.35s var(--gs-ease);
        overflow-y: auto; box-shadow: var(--gs-shadow-lg);
    }
    .gs-shop__sidebar.is-open { transform: translateX(0); }
    .gs-shop__sidebar-head { display: flex; }
}

@media (max-width: 640px) {
    .gs-section__head--row { flex-direction: column; align-items: flex-start; }
    .gs-trust-bar__list { grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }
    .gs-category-grid, .gs-product-grid, .gs-why__grid,
    .gs-shop__results ul.products, .gs-blog__grid,
    .gs-single-product__related ul.products { grid-template-columns: 1fr; }
    .gs-footer__grid { grid-template-columns: 1fr; }
    .gs-hero__stats { gap: 1.4rem; }
    .gs-hero__stats strong { font-size: 1.7rem; }
    .gs-single-product__facts { grid-template-columns: 1fr; }
    .gs-pd-columns { grid-template-columns: 1fr; }
    .gs-newsletter__form input[type="email"] { min-width: 100%; }
    .gs-footer__bar-inner { flex-direction: column; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * { animation: none !important; transition: none !important; }
}