/* ==========================================================================
   Aideo Music Player - Premium Spatial Glassmorphism & High-Fi Design System
   Theme: Midnight Violet & Ambient Liquid Glow (Spatial Glass Tier)
   ========================================================================== */

:root {
  /* Surfaces & Backgrounds */
  --bg-deep: #06060c;
  --bg-surface: #0c0c16;
  --bg-card: rgba(18, 18, 30, 0.7);
  --bg-card-hover: rgba(28, 28, 45, 0.85);
  --bg-elevated: rgba(255, 255, 255, 0.04);

  /* Glassmorphism & Borders */
  --glass-bg: rgba(16, 16, 28, 0.65);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-hover: rgba(168, 85, 247, 0.35);
  --glass-highlight: inset 0 1px 1px rgba(255, 255, 255, 0.12);

  /* Brand Accents (Aideo Violet & Cyan) */
  --accent: #8b5cf6;
  --accent-bright: #a855f7;
  --accent-light: #c084fc;
  --accent-glow: rgba(139, 92, 246, 0.35);
  --accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #6366f1 50%, #ec4899 100%);
  
  --cyan: #06b6d4;
  --cyan-bright: #22d3ee;
  --cyan-glow: rgba(6, 182, 212, 0.3);

  --emerald: #10b981;

  /* Typography */
  --text-pure: #ffffff;
  --text-primary: #f1f1f8;
  --text-secondary: #94a3b8;
  --text-dim: #64748b;

  --font-main: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

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

  /* Shadows & Glows */
  --shadow-card: 0 16px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 50px rgba(139, 92, 246, 0.18);
  --shadow-hero: 0 30px 80px rgba(0, 0, 0, 0.8), 0 0 60px rgba(139, 92, 246, 0.2);
}

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

html {
  font-family: var(--font-main);
  background-color: var(--bg-deep);
  color: var(--text-primary);
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Ambient Radial Glow Lighting */
.ambient-glow-mesh {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.45;
  animation: float-ambient 18s infinite alternate ease-in-out;
}

.glow-orb-1 {
  width: 60vw;
  height: 60vw;
  top: -20vw;
  left: 15vw;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.25) 0%, rgba(99, 102, 241, 0.12) 50%, transparent 70%);
}

.glow-orb-2 {
  width: 45vw;
  height: 45vw;
  top: 35vh;
  right: -10vw;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.18) 0%, rgba(139, 92, 246, 0.08) 50%, transparent 70%);
  animation-delay: -6s;
}

.glow-orb-3 {
  width: 50vw;
  height: 50vw;
  bottom: 10vh;
  left: -15vw;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.12) 0%, rgba(139, 92, 246, 0.08) 50%, transparent 70%);
  animation-delay: -12s;
}

@keyframes float-ambient {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, 40px) scale(1.08); }
  100% { transform: translate(-20px, 20px) scale(0.95); }
}

/* ─── Floating Glass Navigation ─── */
nav.liquid-nav {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 40px);
  max-width: 1180px;
  height: 64px;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(14, 14, 24, 0.7);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), var(--glass-highlight);
  z-index: 100;
  transition: all 0.3s ease;
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: #fff;
}

.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.brand-text {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #ffffff 40%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-version-pill {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-light);
  border: 1px solid rgba(139, 92, 246, 0.3);
}

.nav-links-cluster {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-item {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-item:hover {
  color: #fff;
}

.nav-btn-github {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  font-size: 0.84rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.25s ease;
}

.nav-btn-github:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-1px);
}

/* ─── Hero Section ─── */
.hero-wrapper {
  padding: 140px 6% 80px;
  max-width: 1240px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-chip-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.28);
  border-radius: var(--radius-pill);
  color: var(--accent-light);
  font-size: 0.78rem;
  font-weight: 600;
  margin-bottom: 24px;
  backdrop-filter: blur(12px);
}

.chip-status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--emerald);
  box-shadow: 0 0 8px var(--emerald);
}

.hero-title-big {
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -2px;
  color: #fff;
  max-width: 980px;
  margin-bottom: 22px;
}

.gradient-word {
  background: linear-gradient(135deg, #ffffff 20%, #c4b5fd 60%, #a855f7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-tagline-text {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 680px;
  line-height: 1.65;
  margin-bottom: 36px;
}

.hero-button-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 56px;
}

.btn-glow-primary {
  background: var(--accent-gradient);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 14px 30px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.98rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(139, 92, 246, 0.45), var(--glass-highlight);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-glow-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 14px 38px rgba(139, 92, 246, 0.6);
  filter: brightness(1.08);
}

.btn-glow-primary:active {
  transform: translateY(1px) scale(0.98);
}

.btn-glass-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  color: #fff;
  padding: 14px 26px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  backdrop-filter: blur(12px);
  transition: all 0.25s ease;
}

.btn-glass-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.btn-glass-secondary:active {
  transform: scale(0.98);
}

/* ─── Hero Floating Glass Mockup & Stage ─── */
.hero-mockup-showcase {
  width: 100%;
  max-width: 1120px;
  position: relative;
  perspective: 1000px;
}

.glass-viewport-card {
  background: var(--glass-bg);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xl);
  padding: 10px;
  box-shadow: var(--shadow-hero);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  overflow: hidden;
  position: relative;
}

.viewport-tabs-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 14px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  flex-wrap: wrap;
  gap: 8px;
}

.tab-pill-list {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
}

.mockup-tab-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.mockup-tab-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.mockup-tab-btn.active {
  background: rgba(139, 92, 246, 0.2);
  border-color: rgba(139, 92, 246, 0.4);
  color: #fff;
  box-shadow: 0 0 15px rgba(139, 92, 246, 0.25);
}

.wasapi-live-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--cyan-bright);
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.3);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  gap: 6px;
}

.screenshot-display-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9.6;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #090912;
  margin-top: 10px;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.mockup-screenshot-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: opacity 0.3s ease, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.screenshot-caption-bar {
  padding: 14px 18px 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.88rem;
}

.caption-view-name {
  font-weight: 700;
  color: #fff;
}

.caption-view-desc {
  color: var(--text-secondary);
  font-size: 0.82rem;
}

/* ─── Shared Section Layouts ─── */
section.feature-section {
  padding: 90px 6%;
  max-width: 1240px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.section-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--accent-light);
  text-transform: uppercase;
  letter-spacing: 1.8px;
  display: block;
  margin-bottom: 8px;
}

.section-title-h2 {
  font-size: clamp(2.2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -1.2px;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 14px;
}

.section-sub-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ─── Bento Grid of Core Features ─── */
.bento-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.bento-col-2 {
  grid-column: span 2;
}

.bento-col-1 {
  grid-column: span 1;
}

.glass-feature-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--glass-border-hover);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7), 0 0 30px rgba(139, 92, 246, 0.15);
  background: var(--bg-card-hover);
}

.feature-icon-badge {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid rgba(139, 92, 246, 0.3);
  color: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 24px;
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.2);
}

.glass-feature-card.cyan-accent .feature-icon-badge {
  background: rgba(6, 182, 212, 0.15);
  border-color: rgba(6, 182, 212, 0.3);
  color: var(--cyan-bright);
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.2);
}

.glass-feature-card h3 {
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  letter-spacing: -0.4px;
}

.glass-feature-card p {
  font-size: 0.96rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.feature-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-tag-chip {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}

/* ─── Interactive DSP Studio Console ─── */
.dsp-rack-container {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-hero);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  overflow: hidden;
}

.dsp-rack-header {
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--glass-border);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dsp-rack-title {
  font-weight: 800;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
}

.dsp-layout-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
}

.dsp-controls-sidebar {
  background: rgba(10, 10, 18, 0.6);
  border-right: 1px solid var(--glass-border);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.dsp-sidebar-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.headphone-search-box {
  position: relative;
}

.headphone-search-input {
  width: 100%;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  color: #fff;
  font-size: 0.88rem;
  font-family: var(--font-main);
  outline: none;
  transition: border-color 0.2s ease;
}

.headphone-search-input:focus {
  border-color: var(--accent);
}

.headphone-dropdown-results {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  width: 100%;
  max-height: 220px;
  overflow-y: auto;
  background: #121220;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
  z-index: 50;
  display: none;
}

.headphone-item-row {
  padding: 9px 12px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.headphone-item-row:hover {
  background: rgba(139, 92, 246, 0.15);
  color: #fff;
}

.preset-pills-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.preset-pill {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.preset-pill:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.preset-pill.active {
  background: rgba(139, 92, 246, 0.25);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 0 12px rgba(139, 92, 246, 0.3);
}

.preamp-slider-card {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 14px;
}

.preamp-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.preamp-range {
  width: 100%;
  height: 5px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-pill);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}

.preamp-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent-light);
  cursor: pointer;
  box-shadow: 0 0 8px var(--accent-glow);
}

/* EQ Canvas & Graph */
.dsp-graph-stage {
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.svg-eq-graph-frame {
  background: #080812;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  height: 280px;
  position: relative;
  overflow: hidden;
  user-select: none;
}

.eq-grid-line-v {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(255, 255, 255, 0.04);
}

.eq-grid-line-v span {
  position: absolute;
  bottom: 6px;
  left: 4px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
}

.eq-grid-line-h {
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: rgba(255, 255, 255, 0.04);
}

.eq-grid-line-h.zero-db {
  background: rgba(255, 255, 255, 0.12);
}

.eq-grid-line-h span {
  position: absolute;
  right: 8px;
  top: -8px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
}

.eq-svg-element {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.eq-node-pin {
  position: absolute;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-bright);
  border: 2px solid #06060c;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translate(-50%, -50%);
  cursor: grab;
  box-shadow: 0 0 12px var(--accent-glow);
  z-index: 10;
  transition: transform 0.1s ease;
}

.eq-node-pin:hover, .eq-node-pin:active {
  transform: translate(-50%, -50%) scale(1.25);
  cursor: grabbing;
  box-shadow: 0 0 20px rgba(168, 85, 247, 0.8);
}

.dsp-bottom-panels {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 18px;
}

.dsp-table-card, .dsp-apo-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 16px;
}

.dsp-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.filter-input-row {
  display: grid;
  grid-template-columns: 40px 1fr 1fr 1fr;
  gap: 8px;
  align-items: center;
  font-size: 0.76rem;
  background: rgba(0, 0, 0, 0.3);
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
}

.filter-val-input {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  padding: 3px 6px;
  outline: none;
  width: 100%;
}

.filter-val-input:focus {
  border-color: var(--accent);
}

.apo-code-terminal {
  background: #05050b;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-secondary);
  line-height: 1.5;
  height: 150px;
  overflow-y: auto;
  white-space: pre-wrap;
}

.btn-copy-apo {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  color: #fff;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.72rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.btn-copy-apo:hover {
  background: rgba(255, 255, 255, 0.12);
}

/* ─── Audio Signal Comparison Deck ─── */
.signal-compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.signal-mode-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.signal-mode-card.active-mode {
  border-color: rgba(139, 92, 246, 0.45);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7), 0 0 35px rgba(139, 92, 246, 0.2);
}

.mode-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.mode-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
}

.mode-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}

.mode-badge.red {
  background: rgba(239, 68, 68, 0.12);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.mode-badge.green {
  background: rgba(16, 185, 129, 0.12);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.signal-steps-flow {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 16px 0 24px;
}

.signal-step-pill {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.signal-step-pill.highlight-danger {
  border-color: rgba(239, 68, 68, 0.3);
  color: #fca5a5;
  background: rgba(239, 68, 68, 0.05);
}

.signal-step-pill.highlight-success {
  border-color: rgba(168, 85, 247, 0.35);
  color: var(--accent-light);
  background: rgba(139, 92, 246, 0.06);
}

/* ─── Interactive Studio Visualizer Sandbox ─── */
.viz-rack-container {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-hero);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  overflow: hidden;
  margin-top: 10px;
}

.viz-rack-header {
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--glass-border);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.viz-rack-title {
  font-weight: 800;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  letter-spacing: -0.2px;
}

.viz-controls-toolbar {
  padding: 16px 24px;
  background: rgba(10, 10, 18, 0.6);
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}

.viz-modes-row {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.viz-mode-pill {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.viz-mode-pill:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.2);
}

.viz-mode-pill.active {
  background: rgba(139, 92, 246, 0.22);
  border-color: rgba(139, 92, 246, 0.5);
  color: #fff;
  box-shadow: 0 0 16px rgba(139, 92, 246, 0.35);
}

.viz-btn-action {
  background: rgba(139, 92, 246, 0.18);
  border: 1px solid rgba(139, 92, 246, 0.4);
  color: #fff;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.viz-btn-action:hover {
  background: rgba(139, 92, 246, 0.35);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(139, 92, 246, 0.3);
}

.viz-btn-action.playing {
  background: rgba(16, 185, 129, 0.18);
  border-color: rgba(16, 185, 129, 0.45);
  color: #34d399;
}

.viz-btn-action.playing:hover {
  background: rgba(16, 185, 129, 0.3);
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}

.viz-stage-wrapper {
  padding: 24px;
  background: radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.04) 0%, rgba(6, 6, 12, 0.8) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.viz-canvas-frame {
  width: 100%;
  height: 100px;
  border-radius: var(--radius-lg);
  background: #070711;
  border: 1px solid rgba(255, 255, 255, 0.07);
  box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.8), 0 8px 24px rgba(0, 0, 0, 0.4);
  position: relative;
  overflow: hidden;
  transition: height 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.viz-canvas-frame.expanded {
  height: 160px;
}

.viz-canvas-element {
  width: 100%;
  height: 100%;
  display: block;
  cursor: pointer;
}

.viz-telemetry-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  width: 100%;
  margin-top: 20px;
}

.viz-telemetry-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.viz-telemetry-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.viz-telemetry-value {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent-light);
}

@media (max-width: 768px) {
  .viz-telemetry-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ─── Specifications Table & Metrics ─── */
.specs-blueprint-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 28px;
}

.specs-table-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(20px);
}

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

.specs-table th {
  background: rgba(255, 255, 255, 0.03);
  padding: 14px 20px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  border-bottom: 1px solid var(--glass-border);
}

.specs-table td {
  padding: 14px 20px;
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
}

.specs-table tr:last-child td {
  border-bottom: none;
}

.metric-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  margin-bottom: 16px;
}

.metric-stat-card:last-child {
  margin-bottom: 0;
}

.metric-stat-number {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent-light);
  line-height: 1;
  margin-bottom: 6px;
}

.metric-stat-title {
  font-size: 0.96rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 2px;
}

.metric-stat-desc {
  font-size: 0.84rem;
  color: var(--text-secondary);
}

/* ─── Timeline ─── */
.timeline-list-wrapper {
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
}

.timeline-entry-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(20px);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.timeline-entry-card:hover {
  transform: translateX(4px);
  border-color: var(--glass-border-hover);
}

.timeline-entry-card.live-version {
  border-color: rgba(139, 92, 246, 0.4);
  background: rgba(22, 18, 36, 0.85);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 25px rgba(139, 92, 246, 0.15);
}

.timeline-badge-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.timeline-version-tag {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
}

.timeline-entry-card.live-version .timeline-version-tag {
  background: var(--accent-gradient);
  color: #fff;
}

.timeline-card-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
}

.timeline-card-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ─── Footer ─── */
footer.liquid-footer {
  border-top: 1px solid var(--glass-border);
  background: rgba(8, 8, 14, 0.9);
  backdrop-filter: blur(24px);
  padding: 60px 6% 40px;
  position: relative;
  z-index: 1;
}

.footer-inner-grid {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-brand-h4 {
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 4px;
}

.footer-tag-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.footer-wasapi-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--emerald);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
}

.footer-bottom-meta {
  max-width: 1240px;
  margin: 24px auto 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.84rem;
  color: var(--text-dim);
}

/* ─── Comparison Matrix Table (AI Overview Optimization) ─── */
.compare-table-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  overflow-x: auto;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(20px);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  min-width: 640px;
}

.compare-table th {
  background: rgba(255, 255, 255, 0.03);
  padding: 16px 20px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--glass-border);
}

.compare-table th.highlight-col {
  background: rgba(139, 92, 246, 0.12);
  color: var(--accent-light);
  font-weight: 800;
}

.compare-table td {
  padding: 14px 20px;
  font-size: 0.88rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  vertical-align: middle;
}

.compare-table tr:last-child td {
  border-bottom: none;
}

.compare-table td.highlight-col {
  background: rgba(139, 92, 246, 0.06);
  color: #fff;
  font-weight: 600;
}

.badge-yes {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--emerald);
  font-weight: 700;
  font-size: 0.82rem;
}

.badge-no {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--text-dim);
  font-size: 0.82rem;
}

.badge-partial {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: #f59e0b;
  font-size: 0.82rem;
}

/* ─── FAQ Accordion (AI Overviews & SGE Schema) ─── */
.faq-accordion-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 860px;
  margin: 0 auto;
}

.faq-card-item {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(20px);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.faq-card-item:hover {
  border-color: var(--glass-border-hover);
}

.faq-question-btn {
  width: 100%;
  background: transparent;
  border: none;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  text-align: left;
  cursor: pointer;
  outline: none;
}

.faq-chevron-icon {
  font-size: 0.85rem;
  color: var(--accent-light);
  transition: transform 0.25s ease;
}

.faq-card-item.open .faq-chevron-icon {
  transform: rotate(180deg);
}

.faq-answer-content {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: 0.94rem;
  line-height: 1.65;
  display: none;
}

.faq-card-item.open .faq-answer-content {
  display: block;
}

/* ─── Responsive Breakpoints ─── */
@media (max-width: 1024px) {
  .bento-features-grid {
    grid-template-columns: 1fr;
  }
  .bento-col-2 {
    grid-column: span 1;
  }
  .dsp-layout-grid {
    grid-template-columns: 1fr;
  }
  .dsp-controls-sidebar {
    border-right: none;
    border-bottom: 1px solid var(--glass-border);
  }
  .signal-compare-grid {
    grid-template-columns: 1fr;
  }
  .specs-blueprint-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  nav.liquid-nav {
    width: calc(100% - 24px);
    padding: 0 16px;
    top: 12px;
  }
  .nav-links-cluster {
    display: none;
  }
  .hero-wrapper {
    padding-top: 110px;
  }
  .hero-title-big {
    font-size: 2.4rem;
    letter-spacing: -1px;
  }
  section.feature-section {
    padding: 60px 4%;
  }
  .dsp-bottom-panels {
    grid-template-columns: 1fr;
  }
  .footer-inner-grid {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
  .footer-bottom-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}

/* ─── Product Hunt Badge & Launch Banner ─── */
.producthunt-hero-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: -24px;
  margin-bottom: 48px;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), filter 0.25s ease;
}

.producthunt-hero-badge:hover {
  transform: translateY(-2px) scale(1.03);
  filter: drop-shadow(0 8px 24px rgba(235, 87, 87, 0.25));
}

.producthunt-hero-badge img {
  border-radius: 12px;
  max-width: 100%;
  height: auto;
}

.ph-launch-banner {
  padding: 0 6% 80px;
  max-width: 1240px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.ph-launch-card {
  background: linear-gradient(135deg, rgba(28, 18, 38, 0.75) 0%, rgba(18, 18, 30, 0.85) 100%);
  border: 1px solid rgba(235, 87, 87, 0.3);
  border-radius: var(--radius-xl);
  padding: 36px 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 40px rgba(235, 87, 87, 0.12);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  transition: all 0.3s ease;
}

.ph-launch-card:hover {
  border-color: rgba(235, 87, 87, 0.5);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.7), 0 0 50px rgba(235, 87, 87, 0.2);
}

.ph-launch-text {
  max-width: 650px;
}

.ph-launch-title {
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.ph-launch-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.ph-launch-badge-slot {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ph-launch-badge-slot a {
  display: inline-block;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), filter 0.25s ease;
}

.ph-launch-badge-slot a:hover {
  transform: translateY(-2px) scale(1.04);
  filter: drop-shadow(0 10px 28px rgba(235, 87, 87, 0.35));
}

.ph-launch-badge-slot img {
  border-radius: 12px;
}

@media (max-width: 768px) {
  .ph-launch-card {
    flex-direction: column;
    text-align: center;
    padding: 28px 20px;
  }
  .ph-launch-text {
    max-width: 100%;
  }
}