/* ===========================
   VialX — Main Stylesheet
   Research Use Only
   =========================== */

:root {
  --navy: #0c0b09;
  --navy-mid: #151310;
  --navy-light: #1f1b14;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --gold: #f59e0b;
  --cta: #f97316;
  --cta-dark: #ea580c;
  --white: #faf8f4;
  --off-white: #f4f0e8;
  --gray-light: #e8e0d0;
  --gray: #9a9080;
  --text: #c8bfaf;
  --text-dark: #1a1510;
  --danger: #ef4444;
  --success: #10b981;
  --font-main: 'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(0,0,0,0.35);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.5);
  --transition: all 0.22s cubic-bezier(0.4,0,0.2,1);
}

/* ─── Reset ─────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-main);
  background: var(--navy);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--white); }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font-main); }

/* ─── Typography ─────────────────────────── */
h1, h2, h3, h4, h5 { color: var(--white); font-weight: 700; line-height: 1.2; font-family: var(--font-heading); }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); letter-spacing: -0.005em; }
h3 { font-size: 1.25rem; }
p { color: var(--text); }
.label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ─── Layout ─────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 5rem 0; }
.section-sm { padding: 3rem 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.flex { display: flex; align-items: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 2rem; }

/* ─── Buttons ────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--cta), var(--cta-dark));
  color: #fff;
  box-shadow: 0 4px 18px rgba(249,115,22,0.35);
  letter-spacing: 0.01em;
}
.btn-primary:hover {
  background: linear-gradient(135deg, #fb923c, var(--cta));
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(249,115,22,0.5);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(245,158,11,0.35);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(245,158,11,0.08);
}
.btn-gold {
  background: var(--gold);
  color: var(--navy);
}
.btn-gold:hover {
  background: #ffc020;
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(240,165,0,0.35);
}
.btn-lg { padding: 1rem 2.25rem; font-size: 1rem; }
.btn-sm { padding: 0.5rem 1.1rem; font-size: 0.82rem; }
.btn-block { width: 100%; justify-content: center; }
.btn-danger { background: var(--danger); color: white; }

/* ─── Cards ──────────────────────────────── */
.card {
  background: var(--navy-mid);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
}
.card:hover {
  border-color: rgba(245,158,11,0.25);
  box-shadow: 0 8px 32px rgba(245,158,11,0.08);
  transform: translateY(-2px);
}
.card-flat { border-radius: var(--radius); padding: 1.5rem; }

/* ─── Badges ─────────────────────────────── */
.badge {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.badge-ruo { background: rgba(240,165,0,0.15); color: var(--gold); border: 1px solid rgba(240,165,0,0.3); }
.badge-instock { background: rgba(16,185,129,0.15); color: var(--success); border: 1px solid rgba(16,185,129,0.3); }
.badge-new { background: rgba(245,158,11,0.15); color: var(--accent); border: 1px solid rgba(245,158,11,0.3); }

/* ─── Disclaimer Banner ──────────────────── */
.ruo-banner {
  background: linear-gradient(135deg, rgba(240,165,0,0.12), rgba(240,165,0,0.05));
  border: 1px solid rgba(240,165,0,0.3);
  border-radius: var(--radius);
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.82rem;
  color: #c9a23d;
  line-height: 1.5;
}
.ruo-banner .ruo-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: 0.05rem; }
.ruo-banner strong { color: var(--gold); }

/* ─── Header / Nav ───────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(12,11,9,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 2rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--white);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}
.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}
.logo span { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 0.25rem; }
.nav-links a {
  padding: 0.5rem 0.85rem;
  border-radius: 8px;
  color: var(--gray);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active {
  color: var(--white);
  background: rgba(255,255,255,0.07);
}
.nav-actions { display: flex; align-items: center; gap: 0.75rem; }
.cart-btn {
  position: relative;
  background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.2);
  border-radius: var(--radius);
  padding: 0.55rem 1rem;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
  cursor: pointer;
}
.cart-btn:hover { background: rgba(245,158,11,0.18); color: var(--white); }
.cart-count {
  background: var(--accent);
  color: var(--navy);
  font-size: 0.7rem;
  font-weight: 800;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  top: -6px;
  right: -6px;
}
.hamburger { display: none; background: none; border: none; color: var(--white); font-size: 1.4rem; padding: 0.4rem; }

/* ─── Hero ───────────────────────────────── */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 5rem 0;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(217,119,6,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 20% 80%, rgba(30,20,5,0.2) 0%, transparent 60%),
    linear-gradient(180deg, var(--navy) 0%, var(--navy-mid) 100%);
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(245,158,11,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245,158,11,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
}
.hero-content { position: relative; z-index: 2; max-width: 680px; }
.hero-eyebrow { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1.5rem; }
.eyebrow-line { width: 32px; height: 2px; background: var(--accent); border-radius: 2px; }
.hero h1 { margin-bottom: 1.25rem; }
.hero h1 span {
  background: linear-gradient(135deg, #fbbf24, var(--cta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1.15rem;
  color: var(--gray);
  margin-bottom: 2rem;
  max-width: 560px;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.hero-stats {
  display: flex;
  gap: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.stat-item .stat-num {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
}
.stat-item .stat-label { font-size: 0.8rem; color: var(--gray); margin-top: 0.2rem; }

/* ─── Molecule Visual ────────────────────── */
.hero-visual {
  position: absolute;
  right: -40px;
  top: 50%;
  transform: translateY(-50%);
  width: 500px;
  height: 500px;
  opacity: 0.55;
}
.molecule-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(245,158,11,0.2);
  animation: pulse-ring 4s ease-in-out infinite;
}
.ring-1 { width: 200px; height: 200px; top: 50%; left: 50%; transform: translate(-50%,-50%); animation-delay: 0s; }
.ring-2 { width: 320px; height: 320px; top: 50%; left: 50%; transform: translate(-50%,-50%); animation-delay: 0.5s; border-color: rgba(245,158,11,0.12); }
.ring-3 { width: 440px; height: 440px; top: 50%; left: 50%; transform: translate(-50%,-50%); animation-delay: 1s; border-color: rgba(245,158,11,0.07); }
.molecule-center {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 80px; height: 80px;
  background: linear-gradient(135deg, rgba(245,158,11,0.3), rgba(217,119,6,0.15));
  border: 1px solid rgba(245,158,11,0.4);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem;
}
.molecule-dot {
  position: absolute;
  width: 12px; height: 12px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent);
}
@keyframes pulse-ring {
  0%, 100% { transform: translate(-50%,-50%) scale(1); opacity: 1; }
  50% { transform: translate(-50%,-50%) scale(1.04); opacity: 0.7; }
}

/* ─── Features Strip ─────────────────────── */
.features-strip {
  background: var(--navy-mid);
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 2rem 0;
}
.features-row { display: flex; align-items: center; justify-content: space-around; gap: 2rem; flex-wrap: wrap; }
.feature-item { display: flex; align-items: center; gap: 0.75rem; }
.feature-icon { font-size: 1.4rem; }
.feature-text { font-size: 0.9rem; font-weight: 500; color: var(--white); }

/* ─── Product Cards ──────────────────────── */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; }
.product-card {
  background: var(--navy-mid);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}
.product-card:hover {
  border-color: rgba(245,158,11,0.25);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3);
}
.product-img-wrap {
  background: linear-gradient(135deg, rgba(20,14,5,0.8), rgba(25,18,6,0.6));
  padding: 2.5rem;
  text-align: center;
  position: relative;
}
.product-vial {
  width: 90px;
  height: 150px;
  margin: 0 auto;
  position: relative;
}
.vial-body {
  width: 60px;
  height: 110px;
  background: linear-gradient(180deg, rgba(200,235,255,0.15) 0%, rgba(100,180,230,0.25) 50%, rgba(0,120,200,0.3) 100%);
  border: 2px solid rgba(150,210,255,0.35);
  border-radius: 4px 4px 30px 30px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}
.vial-liquid {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 65%;
  background: linear-gradient(180deg, rgba(245,158,11,0.2), rgba(217,119,6,0.4));
  border-radius: 0 0 28px 28px;
}
.vial-label {
  position: absolute;
  top: 25%; left: 50%;
  transform: translateX(-50%);
  background: rgba(255,255,255,0.9);
  color: var(--navy);
  font-size: 0.52rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.4rem;
  border-radius: 3px;
  white-space: nowrap;
  text-align: center;
}
.vial-cap {
  width: 40px;
  height: 18px;
  background: linear-gradient(135deg, #c0c0c0, #888);
  border-radius: 4px 4px 0 0;
  margin: 0 auto;
}
.product-badges {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.product-info { padding: 1.5rem; }
.product-name { font-size: 1.1rem; font-weight: 700; color: var(--white); margin-bottom: 0.3rem; }
.product-formula { font-size: 0.8rem; color: var(--gray); font-family: var(--font-mono); margin-bottom: 0.75rem; }
.product-desc { font-size: 0.86rem; color: var(--gray); margin-bottom: 1.25rem; line-height: 1.55; }
.product-price-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.price-main { font-size: 1.35rem; font-weight: 800; color: var(--white); }
.price-unit { font-size: 0.75rem; color: var(--gray); }

/* ─── COA / Trust Section ────────────────── */
.coa-card {
  background: linear-gradient(135deg, rgba(16,185,129,0.08), rgba(16,185,129,0.03));
  border: 1px solid rgba(16,185,129,0.25);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}
.coa-row { display: flex; align-items: center; justify-content: space-between; padding: 0.75rem 0; border-bottom: 1px solid rgba(255,255,255,0.05); }
.coa-row:last-child { border-bottom: none; }
.coa-label { font-size: 0.85rem; color: var(--gray); }
.coa-value { font-size: 0.85rem; font-weight: 600; color: var(--success); font-family: var(--font-mono); }

/* ─── Page Hero ──────────────────────────── */
.page-hero {
  background: linear-gradient(180deg, var(--navy-mid) 0%, var(--navy) 100%);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 4rem 0 3rem;
}
.breadcrumb { display: flex; align-items: center; gap: 0.5rem; font-size: 0.82rem; color: var(--gray); margin-bottom: 1rem; }
.breadcrumb a { color: var(--gray); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-sep { opacity: 0.4; }

/* ─── Product Detail ─────────────────────── */
.product-detail-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 4rem; align-items: start; }
.product-gallery {
  background: linear-gradient(135deg, rgba(20,14,5,0.9), rgba(25,18,6,0.6));
  border: 1px solid rgba(245,158,11,0.12);
  border-radius: var(--radius-lg);
  padding: 3rem;
  text-align: center;
  position: relative;
}
.large-vial { width: 140px; height: 230px; margin: 0 auto; }
.large-vial .vial-body { width: 90px; height: 180px; }
.large-vial .vial-cap { width: 60px; height: 25px; }
.purity-badge {
  position: absolute;
  top: 1.25rem; right: 1.25rem;
  background: rgba(16,185,129,0.15);
  border: 1px solid rgba(16,185,129,0.3);
  border-radius: var(--radius);
  padding: 0.5rem 0.85rem;
  text-align: center;
}
.purity-num { font-size: 1.2rem; font-weight: 800; color: var(--success); }
.purity-text { font-size: 0.68rem; color: var(--success); letter-spacing: 0.05em; }
.product-specs { margin-top: 1.5rem; display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.spec-pill {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 100px;
  padding: 0.35rem 0.9rem;
  font-size: 0.78rem;
  color: var(--text);
}
.detail-price-box {
  background: var(--navy-mid);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin-bottom: 1.5rem;
}
.detail-price { font-size: 2rem; font-weight: 800; color: var(--white); }
.detail-price-unit { font-size: 0.85rem; color: var(--gray); margin-top: 0.2rem; }
.qty-selector { display: flex; align-items: center; gap: 0.75rem; margin-top: 1.25rem; }
.qty-btn { width: 36px; height: 36px; border-radius: 8px; background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.12); color: var(--white); font-size: 1.1rem; display: flex; align-items: center; justify-content: center; transition: var(--transition); }
.qty-btn:hover { background: rgba(245,158,11,0.15); border-color: var(--accent); color: var(--accent); }
.qty-num { font-size: 1.1rem; font-weight: 700; color: var(--white); min-width: 2rem; text-align: center; }
.qty-label { font-size: 0.82rem; color: var(--gray); margin-left: 0.5rem; }

/* ─── Tabs ───────────────────────────────── */
.tab-nav { display: flex; gap: 0; border-bottom: 1px solid rgba(255,255,255,0.08); margin-bottom: 2rem; overflow-x: auto; }
.tab-btn {
  padding: 0.85rem 1.5rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--gray);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  margin-bottom: -1px;
}
.tab-btn:hover { color: var(--white); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ─── Table ──────────────────────────────── */
.data-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.data-table th { text-align: left; padding: 0.75rem 1rem; color: var(--gray); font-weight: 600; font-size: 0.78rem; letter-spacing: 0.05em; text-transform: uppercase; border-bottom: 1px solid rgba(255,255,255,0.08); }
.data-table td { padding: 0.85rem 1rem; border-bottom: 1px solid rgba(255,255,255,0.04); color: var(--text); vertical-align: top; }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: rgba(255,255,255,0.02); }
.mono { font-family: var(--font-mono); font-size: 0.82rem; }

/* ─── Cart Sidebar ───────────────────────── */
.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.cart-overlay.open { opacity: 1; pointer-events: all; }
.cart-drawer {
  position: fixed;
  top: 0; right: 0;
  width: 420px;
  max-width: 100vw;
  height: 100vh;
  background: var(--navy-mid);
  border-left: 1px solid rgba(255,255,255,0.08);
  z-index: 2001;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
  display: flex;
  flex-direction: column;
}
.cart-drawer.open { transform: translateX(0); }
.cart-header { padding: 1.5rem; border-bottom: 1px solid rgba(255,255,255,0.08); display: flex; align-items: center; justify-content: space-between; }
.cart-header h3 { color: var(--white); font-size: 1.1rem; }
.cart-close { background: none; border: none; color: var(--gray); font-size: 1.4rem; cursor: pointer; padding: 0.25rem; transition: var(--transition); }
.cart-close:hover { color: var(--white); }
.cart-items { flex: 1; overflow-y: auto; padding: 1.25rem; display: flex; flex-direction: column; gap: 1rem; }
.cart-item { background: var(--navy); border: 1px solid rgba(255,255,255,0.06); border-radius: var(--radius); padding: 1rem; display: flex; gap: 1rem; align-items: center; }
.cart-item-icon { font-size: 1.8rem; flex-shrink: 0; }
.cart-item-name { font-size: 0.9rem; font-weight: 600; color: var(--white); }
.cart-item-sub { font-size: 0.78rem; color: var(--gray); }
.cart-item-price { font-weight: 700; color: var(--accent); font-size: 0.95rem; }
.cart-item-remove { background: none; border: none; color: var(--gray); cursor: pointer; font-size: 1.1rem; margin-left: auto; transition: var(--transition); }
.cart-item-remove:hover { color: var(--danger); }
.cart-footer { padding: 1.5rem; border-top: 1px solid rgba(255,255,255,0.08); }
.cart-total { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.cart-total-label { color: var(--gray); font-size: 0.9rem; }
.cart-total-price { font-size: 1.35rem; font-weight: 800; color: var(--white); }
.cart-empty { text-align: center; padding: 3rem 1rem; color: var(--gray); }
.cart-empty-icon { font-size: 3rem; margin-bottom: 1rem; opacity: 0.5; }

/* ─── Checkout Form ──────────────────────── */
.form-group { margin-bottom: 1.25rem; }
.form-label { display: block; font-size: 0.82rem; font-weight: 600; color: var(--text); margin-bottom: 0.4rem; letter-spacing: 0.02em; }
.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  color: var(--white);
  font-size: 0.9rem;
  font-family: var(--font-main);
  transition: var(--transition);
}
.form-input:focus { outline: none; border-color: var(--accent); background: rgba(245,158,11,0.05); }
.form-input::placeholder { color: var(--gray); }
.form-select { width: 100%; padding: 0.75rem 1rem; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius); color: var(--white); font-size: 0.9rem; font-family: var(--font-main); appearance: none; cursor: pointer; }
.form-select option { background: var(--navy-mid); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.checkbox-label { display: flex; align-items: flex-start; gap: 0.75rem; cursor: pointer; font-size: 0.85rem; color: var(--text); line-height: 1.5; }
.checkbox-label input { margin-top: 0.1rem; accent-color: var(--accent); }

/* ─── Disclaimer Modal ───────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(6px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.modal-box {
  background: var(--navy-mid);
  border: 1px solid rgba(240,165,0,0.3);
  border-radius: var(--radius-lg);
  max-width: 560px;
  width: 100%;
  padding: 2.5rem;
  animation: slideUp 0.3s ease;
}
.modal-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.modal-box h2 { font-size: 1.4rem; margin-bottom: 0.75rem; }
.modal-box p { font-size: 0.88rem; color: var(--gray); margin-bottom: 1rem; line-height: 1.65; }
.modal-box ul { margin: 0.75rem 0 1.25rem 1.25rem; list-style: disc; }
.modal-box ul li { font-size: 0.85rem; color: var(--gray); margin-bottom: 0.4rem; }
.modal-actions { display: flex; gap: 1rem; }
@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ─── Trust Badges ───────────────────────── */
.trust-row { display: flex; align-items: center; justify-content: center; gap: 3rem; flex-wrap: wrap; }
.trust-item { display: flex; align-items: center; gap: 0.65rem; }
.trust-icon { font-size: 1.6rem; }
.trust-label { font-size: 0.85rem; font-weight: 600; color: var(--text); }

/* ─── Affiliate / Marketing ──────────────── */
.affiliate-steps { counter-reset: step; }
.affiliate-step { display: flex; gap: 1.5rem; padding: 1.5rem 0; border-bottom: 1px solid rgba(255,255,255,0.06); }
.affiliate-step:last-child { border-bottom: none; }
.step-num {
  counter-increment: step;
  width: 40px; height: 40px;
  background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.2);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem; font-weight: 800; color: var(--accent);
  flex-shrink: 0;
}
.step-content h4 { color: var(--white); margin-bottom: 0.35rem; }
.step-content p { font-size: 0.88rem; color: var(--gray); }

/* ─── Footer ─────────────────────────────── */
.site-footer {
  background: var(--navy-mid);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 4rem 0 2rem;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
.footer-brand p { font-size: 0.85rem; color: var(--gray); margin-top: 0.75rem; line-height: 1.65; max-width: 280px; }
.footer-col h5 { color: var(--white); font-size: 0.9rem; margin-bottom: 1rem; }
.footer-links { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-links a { font-size: 0.84rem; color: var(--gray); }
.footer-links a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 1.5rem;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer-legal { font-size: 0.75rem; color: var(--gray); line-height: 1.6; max-width: 700px; }
.footer-legal strong { color: var(--gold); }
.footer-copy { font-size: 0.78rem; color: var(--gray); white-space: nowrap; }

/* ─── Toast / Notification ───────────────── */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--navy-mid);
  border: 1px solid rgba(16,185,129,0.3);
  border-radius: var(--radius);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 5000;
  box-shadow: var(--shadow-lg);
  transform: translateX(120%);
  transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
  max-width: 360px;
}
.toast.show { transform: translateX(0); }
.toast-icon { font-size: 1.2rem; }
.toast-text { font-size: 0.88rem; color: var(--white); font-weight: 500; }

/* ─── Research Page ──────────────────────── */
.research-item {
  background: var(--navy-mid);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin-bottom: 1.25rem;
}
.research-item h4 { color: var(--white); margin-bottom: 0.5rem; font-size: 1rem; }
.research-meta { font-size: 0.78rem; color: var(--accent); font-family: var(--font-mono); margin-bottom: 0.75rem; }
.research-item p { font-size: 0.86rem; color: var(--gray); line-height: 1.65; }

/* ─── Responsive ─────────────────────────── */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .product-detail-grid { grid-template-columns: 1fr; gap: 2rem; }
  .hero-visual { opacity: 0.2; width: 380px; right: -80px; }
}
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .hamburger { display: block; }
  .hero { min-height: 70vh; }
  .hero-visual { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .cart-drawer { width: 100%; }
  .modal-actions { flex-direction: column; }
  .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .container { padding: 0 1rem; }
  .section { padding: 3rem 0; }
  .hero-actions { flex-direction: column; }
  .btn-lg { width: 100%; justify-content: center; }
}

/* ─── Utility Classes ────────────────────── */
.hidden { display: none !important; }
.text-success { color: var(--success); }
.text-accent { color: var(--accent); }
.text-gold { color: var(--gold); }
.text-gray { color: var(--gray); }
.text-white { color: var(--white); }
.bg-navy-mid { background: var(--navy-mid); }
.border-top { border-top: 1px solid rgba(255,255,255,0.08); }
.rounded { border-radius: var(--radius); }
.rounded-lg { border-radius: var(--radius-lg); }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }
.w-full { width: 100%; }
.italic { font-style: italic; }
.font-mono { font-family: var(--font-mono); }
.opacity-60 { opacity: 0.6; }