/* ============================================
   DropForge — Binaural Page CSS
   Wellness / meditation theme
   Deep indigo, soft gold, muted teal, white
   ============================================ */

:root {
  --bg: #0A0E1C;
  --bg-alt: #0D1120;
  --surface: #111828;
  --surface-2: #182038;
  --gold: #C8A96E;
  --gold-dim: rgba(200, 169, 110, 0.12);
  --gold-bright: rgba(200, 169, 110, 0.25);
  --teal: #4AAFA8;
  --teal-dim: rgba(74, 175, 168, 0.12);
  --indigo: #3D52A0;
  --indigo-dim: rgba(61, 82, 160, 0.15);
  --text: #F0F0F0;
  --text-muted: #8892a4;
  --text-dim: #4a5568;
  --border: rgba(255,255,255,0.06);
  --border-bright: rgba(255,255,255,0.12);
  --border-gold: rgba(200, 169, 110, 0.2);
  --white: #FFFFFF;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Navigation ── */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 40px;
  background: rgba(10, 14, 28, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.topbar-logo { display: flex; align-items: center; gap: 8px; }
.logo-mark { font-size: 18px; color: var(--gold); }
.logo-text { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 15px; letter-spacing: -0.02em; }

.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-link {
  font-size: 13px; color: var(--text-muted);
  text-decoration: none; transition: color 0.2s;
}
.nav-link:hover { color: var(--text); }
.nav-link.active { color: var(--gold); }

.nav-cta {
  font-size: 13px; font-weight: 600;
  background: var(--gold-dim); color: var(--gold);
  border: 1px solid var(--border-gold);
  padding: 8px 18px; border-radius: 8px;
  text-decoration: none; transition: all 0.2s;
}
.nav-cta:hover { background: var(--gold-bright); }

/* ── Share Button ── */
.share-btn {
  display: flex; align-items: center; gap: 6px;
  background: var(--surface-2); border: 1px solid var(--border-bright);
  border-radius: 8px; padding: 7px 14px;
  color: var(--text-muted); font-family: 'DM Sans', sans-serif;
  font-size: 12px; font-weight: 500; cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  margin-left: 16px;
}
.share-btn:hover { background: var(--surface); color: var(--text); border-color: rgba(255,255,255,0.2); }

/* ── Share Popover ── */
.share-popover {
  position: fixed; top: 64px; right: 40px; z-index: 200;
  background: var(--surface); border: 1px solid var(--border-bright);
  border-radius: 12px; padding: 8px; min-width: 220px;
  box-shadow: 0 16px 48px rgba(0,0,0,0.4);
  opacity: 0; pointer-events: none;
  transform: translateY(-8px);
  transition: opacity 0.15s, transform 0.15s;
}
.share-popover.open { opacity: 1; pointer-events: all; transform: translateY(0); }
.share-popover-header {
  font-family: 'Syne', sans-serif; font-size: 11px; font-weight: 600;
  color: var(--text-dim); letter-spacing: 0.08em;
  text-transform: uppercase; padding: 8px 10px 6px;
}
.share-option {
  display: flex; align-items: center; gap: 10px;
  width: 100%; padding: 10px; border-radius: 8px;
  background: none; border: none; cursor: pointer;
  transition: background 0.12s; text-align: left;
}
.share-option:hover { background: var(--surface-2); }
.share-option.copied .share-option-label { color: var(--teal); }
.share-option-icon { width: 20px; text-align: center; font-size: 14px; }
.share-option-label { font-size: 13px; color: var(--text); font-weight: 500; flex: 1; }
.share-option-desc { font-size: 11px; color: var(--text-dim); }

@media (max-width: 900px) {
  .share-btn { margin-left: 8px; }
  .share-btn span { display: none; }
  .share-btn { padding: 7px 10px; }
  .share-popover { right: 16px; }
}

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex; flex-direction: column;
  justify-content: center;
  padding: 120px 40px 80px;
  position: relative; overflow: hidden;
}

.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(61,82,160,0.18) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 60%, rgba(74,175,168,0.06) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 20% 80%, rgba(200,169,110,0.05) 0%, transparent 60%);
}
.hero-bg-grid {
  position: absolute; inset: 0;
  background: repeating-linear-gradient(0deg, transparent, transparent 60px, rgba(255,255,255,0.015) 60px, rgba(255,255,255,0.015) 61px),
              repeating-linear-gradient(90deg, transparent, transparent 60px, rgba(255,255,255,0.015) 60px, rgba(255,255,255,0.015) 61px);
}

.hero-inner {
  position: relative; z-index: 1;
  max-width: 1200px; margin: 0 auto; width: 100%;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}

.hero-content { }
.hero-kicker {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--indigo-dim); border: 1px solid rgba(61,82,160,0.25);
  border-radius: 100px; padding: 6px 14px;
  font-size: 12px; color: var(--teal); font-weight: 500;
  letter-spacing: 0.04em; margin-bottom: 24px;
}
.kicker-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--teal); animation: pulse 2s ease-in-out infinite; }

.hero-headline {
  font-family: 'Syne', sans-serif;
  font-size: clamp(42px, 5vw, 68px);
  font-weight: 800; line-height: 1.08; letter-spacing: -0.03em;
  margin-bottom: 20px; color: var(--white);
}
.hero-headline em { font-style: normal; color: var(--gold); }

.hero-sub {
  font-size: 17px; color: var(--text-muted); line-height: 1.75;
  max-width: 460px; margin-bottom: 36px;
}

.hero-actions { display: flex; align-items: center; gap: 16px; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--gold); color: var(--bg);
  font-family: 'Syne', sans-serif; font-weight: 700; font-size: 15px;
  padding: 14px 28px; border-radius: 10px; border: none;
  cursor: pointer; text-decoration: none; transition: all 0.2s;
}
.btn-primary:hover { background: #D4BC82; transform: translateY(-1px); }
.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: var(--text-muted);
  font-size: 14px; font-weight: 500;
  padding: 14px 20px; border-radius: 10px;
  border: 1px solid var(--border-bright);
  text-decoration: none; transition: all 0.2s;
}
.btn-secondary:hover { color: var(--text); border-color: var(--border-bright); background: var(--surface); }

/* ── Visualizer ── */
.visualizer-container {
  position: relative; display: flex; flex-direction: column; align-items: center;
}
.visualizer-stage {
  position: relative; width: 380px; height: 380px;
}
.canvas-bg {
  position: absolute; inset: 0; border-radius: 50%;
  background: radial-gradient(circle, rgba(61,82,160,0.12) 0%, rgba(61,82,160,0.04) 60%, transparent 80%);
  border: 1px solid var(--border);
}
canvas#beatCanvas {
  position: absolute; inset: 0;
  cursor: pointer;
}
.fork-left, .fork-right {
  position: absolute; top: 50%; transform: translateY(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  width: 60px;
}
.fork-left { left: -90px; }
.fork-right { right: -90px; }
.fork-icon {
  width: 40px; height: 40px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  background: var(--surface-2);
  border: 1px solid var(--border-bright);
}
.fork-label { font-size: 10px; color: var(--text-dim); letter-spacing: 0.08em; text-transform: uppercase; font-weight: 600; }
.fork-hz { font-family: 'Syne', sans-serif; font-size: 12px; font-weight: 700; color: var(--text-muted); }
.fork-left .fork-icon { color: #6B8EFF; }
.fork-right .fork-icon { color: #C8A96E; }

.frequency-selector {
  display: flex; gap: 10px; margin-top: 24px; flex-wrap: wrap; justify-content: center;
}
.freq-btn {
  background: var(--surface); border: 1px solid var(--border-bright);
  border-radius: 8px; padding: 8px 16px; cursor: pointer;
  font-size: 12px; color: var(--text-muted); font-weight: 600;
  font-family: 'DM Sans', sans-serif;
  transition: all 0.2s; display: flex; align-items: center; gap: 6px;
}
.freq-btn:hover { border-color: var(--border-gold); color: var(--gold); }
.freq-btn.active { background: var(--gold-dim); border-color: var(--border-gold); color: var(--gold); }
.freq-hz-badge { font-size: 10px; color: var(--teal); margin-left: 2px; }

/* ── Wave pulse animation for canvas ── */
@keyframes waveExpand {
  0% { transform: scale(0.8); opacity: 0.8; }
  100% { transform: scale(1.3); opacity: 0; }
}

/* ── Section Commons ── */
.section { padding: 100px 40px; }
.section-inner { max-width: 1100px; margin: 0 auto; }
.section-label {
  font-size: 11px; color: var(--teal); letter-spacing: 0.15em;
  text-transform: uppercase; font-weight: 600; margin-bottom: 16px;
}
.section-heading {
  font-family: 'Syne', sans-serif; font-size: clamp(28px, 4vw, 44px);
  font-weight: 700; letter-spacing: -0.02em; line-height: 1.15;
  margin-bottom: 16px;
}
.section-sub {
  font-size: 16px; color: var(--text-muted); line-height: 1.7;
  max-width: 560px; margin-bottom: 64px;
}

/* ── How it works ── */
.how-section {
  padding: 100px 40px;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.how-inner { max-width: 1100px; margin: 0 auto; }
.how-steps {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 40px; margin-top: 0;
}
.how-step {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; padding: 40px 32px;
  transition: border-color 0.3s;
}
.how-step:hover { border-color: var(--border-gold); }
.step-num-label {
  font-size: 11px; color: var(--gold); font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  margin-bottom: 20px; display: block;
}
.step-icon-big {
  width: 64px; height: 64px; border-radius: 16px;
  background: var(--gold-dim); border: 1px solid var(--border-gold);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 24px; font-size: 28px;
}
.step-title { font-family: 'Syne', sans-serif; font-size: 20px; font-weight: 700; margin-bottom: 12px; letter-spacing: -0.01em; }
.step-desc { font-size: 14px; color: var(--text-muted); line-height: 1.75; }
.step-detail { font-size: 12px; color: var(--teal); margin-top: 12px; font-weight: 600; letter-spacing: 0.02em; }

/* ── Product Showcase ── */
.showcase-section { padding: 100px 40px; }
.showcase-inner { max-width: 1100px; margin: 0 auto; }
.showcase-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 48px; align-items: center;
}
.product-visual { position: relative; }

.gallery-wrap { display: flex; flex-direction: column; gap: 12px; }

.gallery-main-img {
  position: relative; border-radius: 20px; overflow: hidden;
  background: var(--surface-2); border: 1px solid var(--border);
  aspect-ratio: 1;
}
.gallery-main-img img {
  width: 100%; height: 100%; object-fit: cover;
  display: block;
  border-radius: 20px;
}

/* Hotspots */
.hotspot {
  position: absolute;
  width: 28px; height: 28px;
  transform: translate(-50%, -50%);
  cursor: pointer;
  z-index: 10;
}
.hotspot-dot {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--gold);
  border: 2px solid rgba(200, 169, 110, 0.3);
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  transition: transform 0.2s, background 0.2s;
}
.hotspot-ring {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 1.5px solid rgba(200, 169, 110, 0.35);
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation: hotspot-pulse 2.5s ease-in-out infinite;
  opacity: 0.6;
}
.hotspot:hover .hotspot-dot,
.hotspot.active .hotspot-dot {
  transform: translate(-50%, -50%) scale(1.35);
  background: #D4BC82;
}
.hotspot:hover .hotspot-ring,
.hotspot.active .hotspot-ring {
  opacity: 0;
}
.hotspot.highlight .hotspot-dot {
  transform: translate(-50%, -50%) scale(1.5);
  background: #fff;
  box-shadow: 0 0 8px var(--gold);
}

@keyframes hotspot-pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.6; }
  50% { transform: translate(-50%, -50%) scale(1.4); opacity: 0.2; }
}

/* Hotspot tooltip card */
.hotspot-card {
  position: absolute; bottom: 16px; left: 16px; right: 16px;
  background: rgba(10, 14, 28, 0.88);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-gold);
  border-radius: 12px; padding: 16px 18px;
  display: none;
  z-index: 20;
}
.hotspot-card.visible { display: block; }
.hotspot-card-freq {
  font-family: 'Syne', sans-serif; font-size: 11px; font-weight: 700;
  color: var(--gold); letter-spacing: 0.08em; margin-bottom: 4px;
}
.hotspot-card-name {
  font-family: 'Syne', sans-serif; font-size: 16px; font-weight: 700;
  color: var(--white); margin-bottom: 8px;
}
.hotspot-card-desc {
  font-size: 13px; color: var(--text-muted); line-height: 1.6;
}

/* Gallery thumbnails */
.gallery-thumbs {
  display: flex; gap: 10px;
}
.gallery-thumb {
  flex: 1; border-radius: 10px; overflow: hidden;
  border: 2px solid transparent; cursor: pointer; padding: 0;
  background: none; transition: border-color 0.2s;
}
.gallery-thumb img {
  width: 100%; aspect-ratio: 1; object-fit: cover;
  display: block; border-radius: 8px;
}
.gallery-thumb.active { border-color: var(--gold); }
.gallery-thumb:hover { border-color: var(--border-gold); }

.product-badge-overlay {
  position: absolute; top: 16px; left: 16px;
  background: var(--gold-dim); border: 1px solid var(--border-gold);
  border-radius: 8px; padding: 6px 12px;
  font-size: 11px; color: var(--gold); font-weight: 600; letter-spacing: 0.04em;
  z-index: 5;
}

.product-info { display: flex; flex-direction: column; gap: 20px; }
.product-name {
  font-family: 'Syne', sans-serif; font-size: 26px; font-weight: 700;
  letter-spacing: -0.02em; line-height: 1.2;
}
.product-tagline { font-size: 15px; color: var(--text-muted); line-height: 1.65; }
.product-price-row { display: flex; align-items: baseline; gap: 12px; }
.price-main {
  font-family: 'Syne', sans-serif; font-size: 40px; font-weight: 800;
  color: var(--white); letter-spacing: -0.03em;
}
.price-label { font-size: 14px; color: var(--text-dim); }

/* Variants */
.variant-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.variant-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 16px; cursor: pointer; transition: all 0.2s;
}
.variant-card:hover { border-color: var(--border-bright); }
.variant-card.selected { border-color: var(--gold); background: var(--gold-dim); }
.variant-name { font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.variant-desc { font-size: 11px; color: var(--text-dim); margin-bottom: 8px; }
.variant-price { font-family: 'Syne', sans-serif; font-size: 15px; font-weight: 700; color: var(--gold); }

/* Quantity + CTA */
.qty-row { display: flex; align-items: center; gap: 16px; }
.qty-selector {
  display: flex; align-items: center; gap: 0;
  background: var(--surface); border: 1px solid var(--border-bright);
  border-radius: 10px; overflow: hidden;
}
.qty-btn {
  width: 40px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: none; border: none; cursor: pointer;
  color: var(--text-muted); font-size: 18px;
  transition: all 0.15s;
}
.qty-btn:hover { color: var(--text); background: var(--surface-2); }
.qty-val {
  width: 44px; height: 44px; display: flex; align-items: center; justify-content: center;
  font-family: 'Syne', sans-serif; font-size: 15px; font-weight: 700;
  color: var(--text); border-left: 1px solid var(--border); border-right: 1px solid var(--border);
}

.btn-add-cart {
  flex: 1; height: 44px;
  background: var(--gold-dim); color: var(--gold);
  border: 1px solid var(--border-gold);
  border-radius: 10px; font-size: 15px; font-weight: 600;
  font-family: 'DM Sans', sans-serif; cursor: pointer;
  transition: all 0.2s; display: flex; align-items: center; justify-content: center; gap: 8px;
}
.btn-add-cart:hover { background: var(--gold-bright); }
.btn-buy-now {
  flex: 1; height: 44px;
  background: var(--gold); color: var(--bg);
  border: none; border-radius: 10px;
  font-family: 'Syne', sans-serif; font-weight: 700; font-size: 15px;
  cursor: pointer; transition: all 0.2s; text-decoration: none;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.btn-buy-now:hover { background: #D4BC82; }

/* ── What's in the Box ── */
.inbox-section { padding: 100px 40px; }
.inbox-inner { max-width: 1100px; margin: 0 auto; }
.inbox-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.inbox-item {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; padding: 32px 24px;
  display: flex; flex-direction: column; gap: 10px;
  transition: border-color 0.2s;
}
.inbox-item:hover { border-color: var(--border-gold); }
.inbox-icon-wrap {
  width: 56px; height: 56px; border-radius: 12px;
  background: var(--gold-dim); border: 1px solid var(--border-gold);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 8px;
}
.inbox-item-title { font-family: 'Syne', sans-serif; font-size: 16px; font-weight: 700; color: var(--text); }
.inbox-item-spec { font-size: 11px; color: var(--gold); font-weight: 600; letter-spacing: 0.04em; }
.inbox-item-desc { font-size: 13px; color: var(--text-muted); line-height: 1.65; }

/* ── How to Use Guide ── */
.guide-section {
  padding: 100px 40px;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.guide-inner { max-width: 900px; margin: 0 auto; }
.guide-steps { display: flex; align-items: center; gap: 0; margin-bottom: 36px; }
.guide-step {
  flex: 1; display: flex; flex-direction: column; gap: 12px;
}
.guide-step-num {
  font-family: 'Syne', sans-serif; font-size: 36px; font-weight: 800;
  color: var(--gold); letter-spacing: -0.03em; line-height: 1;
}
.guide-step-title { font-family: 'Syne', sans-serif; font-size: 16px; font-weight: 700; color: var(--text); }
.guide-step-desc { font-size: 14px; color: var(--text-muted); line-height: 1.65; }
.guide-step-arrow { font-size: 24px; color: var(--gold); padding: 0 20px; flex-shrink: 0; }
.guide-tip {
  background: var(--surface); border: 1px solid var(--border-gold);
  border-radius: 12px; padding: 20px 24px;
  font-size: 14px; color: var(--text-muted); line-height: 1.65;
}
.guide-tip-label {
  display: inline-block;
  background: var(--gold-dim); color: var(--gold);
  border-radius: 6px; padding: 2px 10px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.06em;
  margin-right: 8px;
}
.freq-section {
  padding: 100px 40px;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.freq-inner { max-width: 1100px; margin: 0 auto; }
.freq-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.freq-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 28px 24px;
  cursor: pointer; transition: all 0.3s;
  position: relative; overflow: hidden;
}
.freq-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
}
.freq-card.delta::before { background: linear-gradient(to right, #4A6FA5, #6B8EFF); }
.freq-card.theta::before { background: linear-gradient(to right, #2D7D6F, #4AAFA8); }
.freq-card.alpha::before { background: linear-gradient(to right, #8B6914, #C8A96E); }
.freq-card.beta::before { background: linear-gradient(to right, #7A4A8A, #A66EC8); }

.freq-card:hover { transform: translateY(-4px); border-color: var(--border-bright); }
.freq-card.active-freq { border-color: var(--gold); background: var(--gold-dim); }

.freq-hz-display {
  font-family: 'Syne', sans-serif; font-size: 32px; font-weight: 800;
  letter-spacing: -0.03em; line-height: 1; margin-bottom: 4px;
}
.freq-card.delta .freq-hz-display { color: #6B8EFF; }
.freq-card.theta .freq-hz-display { color: var(--teal); }
.freq-card.alpha .freq-hz-display { color: var(--gold); }
.freq-card.beta .freq-hz-display { color: #A66EC8; }

.freq-range { font-size: 11px; color: var(--text-dim); margin-bottom: 20px; font-weight: 600; letter-spacing: 0.04em; }
.freq-state { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.freq-state-name { font-family: 'Syne', sans-serif; font-size: 17px; font-weight: 700; margin-bottom: 12px; color: var(--white); }

.freq-expanded {
  display: none; margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--border);
}
.freq-card.open .freq-expanded { display: block; }
.expanded-use { font-size: 13px; color: var(--teal); font-weight: 600; margin-bottom: 6px; }
.expanded-text { font-size: 13px; color: var(--text-muted); line-height: 1.65; }
.expanded-tags { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.tag-chip {
  font-size: 11px; background: var(--surface-2); color: var(--text-dim);
  border-radius: 6px; padding: 4px 10px;
}

.freq-expand-hint { font-size: 11px; color: var(--text-dim); margin-top: 12px; display: flex; align-items: center; gap: 4px; }
.freq-card.open .freq-expand-hint { display: none; }

/* ── Testimonials ── */
.testi-section { padding: 100px 40px; }
.testi-inner { max-width: 1100px; margin: 0 auto; }
.testi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testi-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; padding: 36px 32px;
  position: relative;
}
.testi-quote-mark { font-size: 48px; color: var(--gold); line-height: 1; margin-bottom: 16px; font-family: Georgia, serif; opacity: 0.4; }
.testi-text { font-size: 15px; color: var(--text); line-height: 1.75; margin-bottom: 24px; font-style: italic; }
.testi-author { display: flex; align-items: center; gap: 12px; }
.testi-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Syne', sans-serif; font-weight: 700; font-size: 14px;
  color: var(--white);
}
.testi-card:nth-child(1) .testi-avatar { background: linear-gradient(135deg, #4A6FA5, #6B8EFF); }
.testi-card:nth-child(2) .testi-avatar { background: linear-gradient(135deg, #2D7D6F, #4AAFA8); }
.testi-card:nth-child(3) .testi-avatar { background: linear-gradient(135deg, #8B6914, #C8A96E); }

.testi-name { font-size: 14px; font-weight: 600; color: var(--text); }
.testi-role { font-size: 12px; color: var(--text-dim); }
.testi-use-case {
  font-size: 11px; color: var(--teal); font-weight: 600;
  letter-spacing: 0.04em; margin-top: 4px;
}

/* ── FAQ ── */
.faq-section {
  padding: 100px 40px;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}
.faq-inner { max-width: 780px; margin: 0 auto; }
.faq-list { display: flex; flex-direction: column; gap: 0; }
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  background: none; border: none; cursor: pointer;
  padding: 24px 0;
  font-family: 'Syne', sans-serif; font-size: 16px; font-weight: 600;
  color: var(--text); text-align: left;
  gap: 16px; transition: color 0.2s;
}
.faq-question:hover { color: var(--gold); }
.faq-toggle { font-size: 20px; color: var(--gold); transition: transform 0.3s; flex-shrink: 0; }
.faq-item.open .faq-toggle { transform: rotate(45deg); }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height 0.3s ease;
}
.faq-item.open .faq-answer { max-height: 200px; }
.faq-answer-inner { padding-bottom: 24px; font-size: 15px; color: var(--text-muted); line-height: 1.75; }

/* ── Final CTA ── */
.final-cta-section {
  padding: 120px 40px;
  text-align: center; position: relative; overflow: hidden;
}
.final-cta-section::before {
  content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(61,82,160,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.final-cta-inner { position: relative; z-index: 1; }
.final-cta-orb {
  width: 80px; height: 80px; border-radius: 50%; margin: 0 auto 40px;
  background: linear-gradient(135deg, var(--indigo), var(--teal));
  animation: orb-glow 3s ease-in-out infinite;
}
@keyframes orb-glow {
  0%, 100% { box-shadow: 0 0 40px rgba(74,175,168,0.2), 0 0 80px rgba(74,175,168,0.1); }
  50% { box-shadow: 0 0 60px rgba(74,175,168,0.4), 0 0 120px rgba(74,175,168,0.2); }
}
.final-cta-heading { font-family: 'Syne', sans-serif; font-size: clamp(36px, 5vw, 60px); font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; margin-bottom: 16px; }
.final-cta-sub { font-size: 17px; color: var(--text-muted); max-width: 460px; margin: 0 auto 40px; line-height: 1.7; }
.final-cta-actions { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; }
.price-badge {
  font-family: 'Syne', sans-serif; font-size: 18px; font-weight: 700; color: var(--gold);
}

/* ── Footer ── */
.site-footer { padding: 48px 40px; border-top: 1px solid var(--border); text-align: center; }
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-brand { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.footer-logo-mark { font-size: 16px; color: var(--gold); }
.footer-logo-text { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 14px; }
.footer-tagline { font-size: 13px; color: var(--text-dim); margin-bottom: 16px; }
.footer-links { display: flex; align-items: center; justify-content: center; gap: 12px; font-size: 12px; color: var(--text-dim); }
.footer-sep { color: var(--border-bright); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .visualizer-stage { width: 300px; height: 300px; }
  .fork-left { left: -70px; }
  .fork-right { right: -70px; }
  .how-steps { grid-template-columns: 1fr; }
  .showcase-grid { grid-template-columns: 1fr; }
  .freq-grid { grid-template-columns: repeat(2, 1fr); }
  .inbox-grid { grid-template-columns: repeat(2, 1fr); }
  .guide-steps { flex-direction: column; gap: 24px; }
  .guide-step-arrow { display: none; }
  .testi-grid { grid-template-columns: 1fr; }
  .section { padding: 80px 20px; }
  .how-section, .freq-section, .faq-section, .inbox-section, .guide-section { padding: 80px 20px; }
  .final-cta-section { padding: 80px 20px; }
  .topbar { padding: 14px 20px; }
  .nav-links { display: none; }
  .variant-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .freq-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .qty-row { flex-wrap: wrap; }
}

/* ── Shipping & Returns Section ── */
.shipping-section {
  padding: 100px 48px;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}
.shipping-inner { max-width: 800px; margin: 0 auto; }
.shipping-accordion { display: flex; flex-direction: column; gap: 4px; }
.shipping-item { border: 1px solid var(--border-gold); border-radius: 10px; overflow: hidden; }
.shipping-question {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; padding: 20px 24px;
  background: var(--surface); border: none;
  color: var(--text); font-family: 'Syne', sans-serif;
  font-size: 15px; font-weight: 600; cursor: pointer;
  text-align: left; gap: 16px;
  transition: background 0.2s;
}
.shipping-question:hover { background: var(--surface-2); }
.shipping-toggle {
  font-size: 20px; color: var(--gold);
  font-weight: 300; flex-shrink: 0;
  transition: transform 0.25s ease;
}
.shipping-item.open .shipping-toggle { transform: rotate(45deg); }
.shipping-answer {
  max-height: 0; overflow: hidden;
  transition: max-height 0.3s ease;
}
.shipping-item.open .shipping-answer { max-height: 200px; }
.shipping-answer p {
  padding: 0 24px 20px;
  font-size: 14px; color: var(--text-muted); line-height: 1.7;
}

/* ── Testimonial hover lift ── */
.testi-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.testi-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.25);
}

/* ── CTA button hover ── */
.btn-primary, .btn-add-cart, .btn-buy-now, .shared-nav-cta {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.btn-primary:hover, .btn-add-cart:hover, .btn-buy-now:hover, .shared-nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200,169,110,0.3);
}

/* ── 2-col desktop product layout ── */
.showcase-inner { max-width: 1200px; margin: 0 auto; padding: 0 48px; }
.showcase-grid {
  display: grid;
  grid-template-columns: 55% 45%;
  gap: 64px;
  align-items: start;
}
@media (max-width: 900px) {
  .showcase-grid { grid-template-columns: 1fr; gap: 48px; }
  .shipping-section { padding: 80px 20px; }
}

/* ── Hero section desktop 2-col ── */
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 48px;
  position: relative; z-index: 1;
}
.hero-content { }
.hero-actions {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
}
.visualizer-container { display: flex; flex-direction: column; align-items: center; gap: 24px; }
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; padding: 0 20px; }
  .visualizer-container { display: none; }
}

/* ── Testimonial grid ── */
.testi-inner { max-width: 1200px; margin: 0 auto; padding: 0 48px; }
.testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 900px) {
  .testi-grid { grid-template-columns: 1fr; }
}

/* ── Frequency section 4-col desktop ── */
.freq-inner { max-width: 1200px; margin: 0 auto; padding: 0 48px; }
.freq-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 1100px) {
  .freq-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .freq-grid { grid-template-columns: 1fr; }
}

/* ── Inbox grid 4-col desktop ── */
.inbox-inner { max-width: 1200px; margin: 0 auto; padding: 0 48px; }
.inbox-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
@media (max-width: 900px) {
  .inbox-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .inbox-grid { grid-template-columns: 1fr; }
}

/* ── FAQ grid 2-col ── */
.faq-inner { max-width: 800px; margin: 0 auto; padding: 0 48px; }

/* ── Final CTA desktop centered ── */
.final-cta-inner {
  max-width: 800px; margin: 0 auto;
  text-align: center; padding: 0 48px;
}
.final-cta-actions { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ── How section ── */
.how-inner { max-width: 1200px; margin: 0 auto; padding: 0 48px; }
.how-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; }
@media (max-width: 900px) {
  .how-steps { grid-template-columns: 1fr; }
  .how-inner, .inbox-inner, .freq-inner, .final-cta-inner, .faq-inner, .testi-inner { padding: 0 20px; }
}

/* ── Guide section ── */
.guide-inner { max-width: 800px; margin: 0 auto; padding: 0 48px; }
.guide-steps { display: flex; align-items: flex-start; gap: 24px; }
@media (max-width: 600px) {
  .guide-steps { flex-direction: column; }
  .guide-step-arrow { transform: rotate(90deg); }
}

/* ── Trust bar on binaural page (offset for sticky header) ── */
.trust-bar { position: relative; z-index: 99; }

/* ── Shared page top padding for sticky header ── */
.shared-page { padding-top: 0; }

/* ── Product price row desktop ── */
.product-price-row {
  display: flex; align-items: baseline; gap: 12px;
  margin: 16px 0;
}

/* ── Showcase section top padding for sticky nav ── */
#product { scroll-margin-top: 80px; }
#how-it-works { scroll-margin-top: 80px; }
#testimonials { scroll-margin-top: 80px; }
#faq { scroll-margin-top: 80px; }
#shipping { scroll-margin-top: 80px; }
#frequencies { scroll-margin-top: 80px; }
#compare { scroll-margin-top: 80px; }

/* ── Compare Plans Table ── */
.compare-section {
  padding: 100px 40px;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}
.compare-inner { max-width: 900px; margin: 0 auto; }
.compare-label {
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 16px;
}
.compare-heading {
  font-family: 'Syne', sans-serif;
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.compare-sub {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 48px;
  line-height: 1.7;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}
.compare-table th {
  padding: 20px 24px;
  text-align: left;
  font-family: 'Syne', sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.compare-table th:first-child { color: var(--text-dim); font-size: 11px; }
.compare-table td {
  padding: 16px 24px;
  font-size: 14px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.compare-table tr:last-child td { border-bottom: none; }
.compare-table tr:hover td { background: rgba(200,169,110,0.03); }

.compare-table th.col-mid,
.compare-table td.col-mid {
  background: rgba(200,169,110,0.04);
}
.compare-table th.col-mid { color: var(--gold); }
.compare-table .recommended-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--gold);
  color: var(--bg);
  font-size: 10px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 100px;
  margin-bottom: 8px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.compare-tier-name {
  font-family: 'Syne', sans-serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.compare-tier-price {
  font-family: 'Syne', sans-serif;
  font-size: 22px;
  font-weight: 800;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 2px;
}
.compare-tier-price-sub { font-size: 12px; color: var(--text-dim); }

.compare-check { color: var(--teal); font-size: 16px; }
.compare-dash { color: var(--text-dim); font-size: 14px; }

.compare-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.15s, transform 0.1s;
  white-space: nowrap;
  cursor: pointer;
}
.compare-cta-primary {
  background: var(--gold);
  color: var(--bg);
}
.compare-cta-primary:hover { background: #B8985F; transform: translateY(-1px); }
.compare-cta-secondary {
  background: var(--surface-2);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.compare-cta-secondary:hover { background: var(--surface); color: var(--text); }

/* ── See It In Action — Video Demo ── */
.video-section {
  padding: 100px 40px;
}
.video-inner {
  max-width: 900px;
  margin: 0 auto;
}
.video-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  border-radius: 16px;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  margin-bottom: 20px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.3);
}
.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}
.video-caption {
  font-size: 14px;
  color: var(--text-muted);
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.65;
}

@media (max-width: 900px) {
  .video-section { padding: 80px 20px; }
}