/* ==========================================================================
   TAPTAP — Luxury Product Website Stylesheet
   Artisanal Horology & Spatial Acoustic Companion
   ========================================================================== */

:root {
  /* Light Theme (Warm Linen, Alabaster Porcelain, Royal Bordeaux) */
  --bg-site: #f4f0e6;
  --bg-site-secondary: #eee7db;
  --bg-card: #fbf8f2;
  --bg-card-hover: #ffffff;
  --bg-card-subtle: #f6f1e8;
  --bg-control: #e6dfd3;
  --bg-control-active: #fbf8f2;

  --border-main: rgba(114, 24, 37, 0.12);
  --border-focus: rgba(114, 24, 37, 0.35);
  --border-subtle: rgba(114, 24, 37, 0.07);

  --accent-burgundy: #721825;
  --accent-burgundy-hover: #8a2030;
  --accent-burgundy-glow: rgba(114, 24, 37, 0.16);
  --accent-gold: #bfa15f;
  --accent-gold-soft: rgba(191, 161, 95, 0.18);

  --text-main: #241917;
  --text-muted: #685750;
  --text-subtle: #92827a;

  --key-bg: #fcfbf7;
  --key-border: rgba(114, 24, 37, 0.16);
  --key-shadow: 0 2px 0 rgba(114, 24, 37, 0.14), 0 3px 6px rgba(45, 25, 20, 0.06);
  --key-pressed-bg: #eddfe1;

  --radar-bg: #eee7db;
  --radar-line: rgba(114, 24, 37, 0.12);

  --shadow-sm: 0 2px 8px rgba(50, 20, 25, 0.04);
  --shadow-md: 0 8px 24px rgba(50, 20, 25, 0.08);
  --shadow-lg: 0 20px 50px rgba(50, 20, 25, 0.12);

  --font-heading: "Quicksand", "Nunito", "Plus Jakarta Sans", sans-serif;
  --font-sans: "Nunito", "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Quicksand", "Nunito", sans-serif;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 9999px;

  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
  /* Dark Theme (Midnight Burgundy, Velvet Wine, Luminous Ruby) */
  --bg-site: #130a0d;
  --bg-site-secondary: #1a0d12;
  --bg-card: #1e0f14;
  --bg-card-hover: #26131a;
  --bg-card-subtle: #29151c;
  --bg-control: #27141b;
  --bg-control-active: #3a1e27;

  --border-main: rgba(220, 95, 115, 0.20);
  --border-focus: rgba(220, 95, 115, 0.50);
  --border-subtle: rgba(220, 95, 115, 0.10);

  --accent-burgundy: #d44359;
  --accent-burgundy-hover: #e6556b;
  --accent-burgundy-glow: rgba(212, 67, 89, 0.25);
  --accent-gold: #d4af37;
  --accent-gold-soft: rgba(212, 175, 55, 0.22);

  --text-main: #fbf5ee;
  --text-muted: #bba4a7;
  --text-subtle: #846e72;

  --key-bg: #27141b;
  --key-border: rgba(220, 95, 115, 0.22);
  --key-shadow: 0 2px 0 #0d0407, 0 3px 6px rgba(0, 0, 0, 0.45);
  --key-pressed-bg: #3c1e29;

  --radar-bg: #180c10;
  --radar-line: rgba(220, 95, 115, 0.15);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.70);
}

/* Base Global Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-site);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
  overflow-x: hidden;
}

/* Typography Helpers */
h1, h2, h3, h4, .serif-heading {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-main);
}

.site-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   NAVIGATION BAR
   ========================================================================== */
.site-nav-wrap {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(244, 240, 230, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color var(--transition-smooth), border-color var(--transition-smooth);
}

[data-theme="dark"] .site-nav-wrap {
  background: rgba(19, 10, 13, 0.85);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
}

.nav-brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  box-shadow: 0 4px 12px var(--accent-burgundy-glow);
  display: block;
}

.nav-brand-text {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--accent-burgundy);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-main);
  background: var(--bg-card);
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.btn-theme-toggle:hover {
  border-color: var(--accent-burgundy);
  transform: translateY(-1px);
}

.btn-nav-download {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  background: var(--accent-burgundy);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  box-shadow: 0 4px 14px var(--accent-burgundy-glow);
  transition: all var(--transition-fast);
}

.btn-nav-download:hover {
  background: var(--accent-burgundy-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px var(--accent-burgundy-glow);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
}

.hero-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background: var(--accent-gold-soft);
  border: 1px solid var(--accent-gold);
  color: var(--text-main);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  line-height: 1.15;
  margin-bottom: 20px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero-title span {
  color: var(--accent-burgundy);
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 36px;
  font-weight: 400;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  background: var(--accent-burgundy);
  color: #ffffff;
  font-weight: 700;
  font-size: 1.02rem;
  text-decoration: none;
  box-shadow: 0 8px 24px var(--accent-burgundy-glow);
  transition: all var(--transition-fast);
}

.btn-hero-primary:hover {
  background: var(--accent-burgundy-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px var(--accent-burgundy-glow);
}

.btn-hero-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: var(--radius-pill);
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-main);
  font-weight: 600;
  font-size: 1.02rem;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.btn-hero-secondary:hover {
  border-color: var(--accent-burgundy);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.hero-metrics-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  flex-wrap: wrap;
  padding: 20px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  max-width: 780px;
  margin: 0 auto;
  box-shadow: var(--shadow-sm);
}

.hero-metric-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-metric-val {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent-burgundy);
}

.hero-metric-lbl {
  font-size: 0.8rem;
  color: var(--text-subtle);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   INTERACTIVE LIVE SOUNDSTAGE DEMO SECTION
   ========================================================================== */
.section-demo {
  padding: 60px 0 100px;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 48px;
}

.section-tag {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-burgundy);
  margin-bottom: 10px;
  display: block;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 14px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
}

/* Soundstage Container Card */
.demo-stage-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-main);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 32px;
  max-width: 960px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.demo-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 16px;
}

.demo-active-switch-info {
  display: flex;
  align-items: center;
  gap: 14px;
}

.demo-switch-avatar {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--bg-control);
  border: 1px solid var(--border-main);
  padding: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.demo-switch-avatar img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.demo-switch-meta h4 {
  font-size: 1.1rem;
  font-family: var(--font-sans);
  font-weight: 700;
}

.demo-switch-meta p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.demo-soundstage-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 28px;
}

@media (max-width: 800px) {
  .demo-soundstage-grid {
    grid-template-columns: 1fr;
  }
}

/* Radar Visualizer Box */
.demo-radar-box {
  background: var(--radar-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  height: 280px;
}

.demo-radar-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.demo-radar-arena {
  width: 100%;
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.demo-radar-arena canvas {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
}

/* Quick Controls Panel */
.demo-controls-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  justify-content: center;
}

.control-card-sub {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
}

.control-label-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.demo-slider {
  width: 100%;
  -webkit-appearance: none;
  height: 6px;
  border-radius: 3px;
  background: var(--bg-control);
  outline: none;
}

.demo-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-burgundy);
  cursor: pointer;
  box-shadow: 0 2px 6px var(--accent-burgundy-glow);
}

.demo-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Interactive Switch Picker Strip */
.demo-switch-pills-wrap {
  margin-bottom: 28px;
}

.demo-pills-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-subtle);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
  display: block;
}

.demo-switch-pills {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
}

.demo-pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-main);
  color: var(--text-main);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.demo-pill-btn img {
  width: 18px;
  height: 18px;
  object-fit: contain;
}

.demo-pill-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-burgundy);
  transform: translateY(-1px);
}

.demo-pill-btn.active {
  background: var(--accent-burgundy);
  border-color: var(--accent-burgundy);
  color: #ffffff;
  box-shadow: 0 4px 12px var(--accent-burgundy-glow);
}

/* ==========================================================================
   BIG CUTE TYPING TEST MINI-GAME
   ========================================================================== */
.demo-typing-card {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-main);
  border-radius: var(--radius-xl);
  padding: 28px;
  margin-bottom: 28px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.typing-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.typing-stats-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.game-badge-pill {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 800;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: var(--accent-burgundy);
  color: #ffffff;
  letter-spacing: 0.04em;
  box-shadow: 0 2px 8px var(--accent-burgundy-glow);
}

.game-stat-tag {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: var(--bg-card);
  border: 1px solid var(--border-main);
  color: var(--text-main);
}

.game-stat-tag.stat-highlight {
  color: var(--accent-burgundy);
  border-color: var(--accent-burgundy);
}

.typing-actions-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-game-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-main);
  background: var(--bg-card);
  color: var(--text-main);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-game-action:hover {
  border-color: var(--accent-burgundy);
  background: var(--bg-card-hover);
  transform: translateY(-1px);
}

.btn-game-stop {
  color: #d32f2f;
}

.btn-game-stop:hover {
  background: #ffebee;
  border-color: #d32f2f;
}

[data-theme="dark"] .btn-game-stop:hover {
  background: #2b1114;
}

/* Big Stream Box */
.big-stream-arena {
  position: relative;
  min-height: 140px;
  background: var(--bg-site);
  border: 2px dashed var(--border-main);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: text;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.big-stream-arena:hover, .big-stream-arena.focused {
  border-color: var(--accent-burgundy);
  background: var(--bg-card);
}

.big-stream-text {
  font-family: var(--font-heading);
  font-size: clamp(1.2rem, 2.8vw, 1.7rem);
  line-height: 1.8;
  font-weight: 600;
  color: var(--text-subtle);
  word-break: break-word;
  user-select: none;
  text-align: left;
  width: 100%;
}

.big-stream-text .ch {
  position: relative;
  transition: color 0.1s ease;
  border-radius: 4px;
}

.big-stream-text .ch.current {
  color: var(--text-main);
  background: var(--accent-gold-soft);
  border-bottom: 3px solid var(--accent-burgundy);
  font-weight: 800;
  padding: 0 2px;
  animation: cutePulse 1.2s infinite ease-in-out;
}

@keyframes cutePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.06); }
}

.big-stream-text .ch.correct {
  color: #2e7d32;
  font-weight: 700;
}

[data-theme="dark"] .big-stream-text .ch.correct {
  color: #66bb6a;
}

.big-stream-text .ch.incorrect {
  color: #d32f2f;
  background: rgba(211, 47, 47, 0.15);
  font-weight: 800;
  text-decoration: underline;
}

/* Click to Start Overlay */
.game-prompt-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(244, 240, 230, 0.88);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  z-index: 5;
}

[data-theme="dark"] .game-prompt-overlay {
  background: rgba(19, 10, 13, 0.88);
}

.game-prompt-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.start-button-pill {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  background: var(--accent-burgundy);
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 6px 20px var(--accent-burgundy-glow);
  transform: translateY(0);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.start-button-pill:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 24px var(--accent-burgundy-glow);
}

/* Big 3.. 2.. 1.. Countdown Overlay */
.big-countdown-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(244, 240, 230, 0.94);
  backdrop-filter: blur(6px);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 6;
}

[data-theme="dark"] .big-countdown-overlay {
  background: rgba(19, 10, 13, 0.94);
}

.big-countdown-overlay.show {
  opacity: 1;
  visibility: visible;
}

.big-countdown-digit {
  font-family: var(--font-heading);
  font-size: 4.8rem;
  font-weight: 900;
  color: var(--accent-burgundy);
  line-height: 1;
}

.countdown-pop {
  animation: countdownPopAnim 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes countdownPopAnim {
  0% { transform: scale(0.4); opacity: 0; }
  60% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

/* Big Results Card Overlay */
.big-results-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(244, 240, 230, 0.96);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  gap: 16px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease;
  z-index: 7;
}

[data-theme="dark"] .big-results-overlay {
  background: rgba(19, 10, 13, 0.96);
}

.big-results-overlay.show {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.results-badge-pill {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 800;
  padding: 4px 16px;
  border-radius: var(--radius-pill);
  background: var(--accent-gold);
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.results-grid-box {
  display: flex;
  align-items: center;
  gap: 32px;
}

.result-item-col {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.result-item-val {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--accent-burgundy);
  line-height: 1.1;
}

.result-item-lbl {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-subtle);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.btn-try-again {
  padding: 10px 24px;
  border-radius: var(--radius-pill);
  background: var(--accent-burgundy);
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 800;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 14px var(--accent-burgundy-glow);
  transition: all var(--transition-fast);
}

.btn-try-again:hover {
  background: var(--accent-burgundy-hover);
  transform: translateY(-2px);
}

/* Keyboard Matrix & Mouse Tester Tabs */
.demo-matrix-card {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.demo-matrix-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

/* Interactive Keyboard Canvas / Key Matrix */
.web-keyboard-matrix {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 12px;
  background: var(--bg-site);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  overflow-x: auto;
}

.kb-row {
  display: flex;
  gap: 4px;
  width: 100%;
}

.kb-key {
  flex: 1 1 0;
  min-width: 0;
  height: 42px;
  padding: 0 4px;
  background: var(--key-bg);
  border: 1px solid var(--key-border);
  border-radius: 8px;
  box-shadow: var(--key-shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  user-select: none;
  transition: transform 0.05s ease, background-color 0.05s ease;
}

.kb-key:active, .kb-key.pressed {
  background: var(--key-pressed-bg) !important;
  transform: translateY(2px) scale(0.97);
  box-shadow: 0 0 0 1.5px var(--accent-burgundy);
}

.kb-key.key-w125 { flex: 1.25 1 0; }
.kb-key.key-w15  { flex: 1.5 1 0; }
.kb-key.key-w175 { flex: 1.75 1 0; }
.kb-key.key-w20  { flex: 2.0 1 0; }
.kb-key.key-w225 { flex: 2.25 1 0; }
.kb-key.key-space { flex: 6.25 1 0; }

/* Interactive Mouse Click Strip */
.demo-mouse-strip {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  justify-content: center;
}

.demo-mouse-btn {
  flex: 1;
  max-width: 180px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-main);
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--transition-fast);
}

.demo-mouse-btn:hover {
  border-color: var(--accent-burgundy);
  transform: translateY(-1px);
}

.demo-mouse-btn:active, .demo-mouse-btn.pressed {
  background: var(--key-pressed-bg);
  transform: translateY(1px);
}

/* ==========================================================================
   FEATURE PILLARS SECTION
   ========================================================================== */
.section-features {
  padding: 80px 0;
  background: var(--bg-site-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-smooth);
  position: relative;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-burgundy);
  box-shadow: var(--shadow-md);
}

.feature-icon-badge {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--accent-gold-soft);
  color: var(--accent-burgundy);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon-badge svg {
  width: 26px;
  height: 26px;
  fill: currentColor;
}

.feature-card h3 {
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ==========================================================================
   CURATED SWITCH SHOWCASE SECTION
   ========================================================================== */
.section-switches {
  padding: 90px 0;
}

.switches-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.switch-showcase-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-smooth);
}

.switch-showcase-card:hover {
  border-color: var(--accent-burgundy);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.switch-card-top {
  display: flex;
  align-items: center;
  gap: 14px;
}

.switch-brand-img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.switch-card-title {
  font-weight: 700;
  font-size: 1.05rem;
}

.switch-card-tag {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--bg-control);
  color: var(--text-muted);
  display: inline-block;
}

.switch-card-specs {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.switch-card-specs span {
  font-weight: 600;
  color: var(--text-main);
}

.btn-test-switch {
  width: 100%;
  padding: 10px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-main);
  background: var(--bg-card-subtle);
  color: var(--accent-burgundy);
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--transition-fast);
}

.btn-test-switch:hover {
  background: var(--accent-burgundy);
  border-color: var(--accent-burgundy);
  color: #ffffff;
}

/* ==========================================================================
   DOWNLOAD & GETTING STARTED SECTION
   ========================================================================== */
.section-download {
  padding: 80px 0 100px;
  background: var(--bg-site-secondary);
  border-top: 1px solid var(--border-subtle);
}

.download-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.download-card {
  background: var(--bg-card);
  border: 1px solid var(--border-main);
  border-radius: var(--radius-xl);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
  position: relative;
}

.download-card.highlighted {
  border: 2px solid var(--accent-burgundy);
}

.download-card-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-burgundy);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.download-card h3 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.download-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.btn-download-action {
  padding: 14px 24px;
  border-radius: var(--radius-pill);
  background: var(--accent-burgundy);
  color: #ffffff;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  display: inline-block;
  box-shadow: 0 6px 18px var(--accent-burgundy-glow);
  transition: all var(--transition-fast);
}

.btn-download-action:hover {
  background: var(--accent-burgundy-hover);
  transform: translateY(-2px);
}

.btn-download-secondary {
  padding: 14px 24px;
  border-radius: var(--radius-pill);
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-main);
  color: var(--text-main);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  display: inline-block;
  transition: all var(--transition-fast);
}

.btn-download-secondary:hover {
  border-color: var(--accent-burgundy);
  transform: translateY(-2px);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  padding: 50px 0 40px;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  list-style: none;
  margin-bottom: 24px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--accent-burgundy);
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--text-subtle);
}