/* ==========================================================================
   Sonara Page Sections
   ========================================================================== */

/* Section Utility */
.section {
  padding: var(--space-24) 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto var(--space-12);
}

.section-badge {
  margin-bottom: var(--space-4);
}

.section-title {
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

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

/* ==========================================================================
   1. Hero Section
   ========================================================================== */
.hero-section {
  padding-top: calc(var(--space-24) + 60px);
  padding-bottom: var(--space-20);
  position: relative;
  text-align: center;
  overflow: hidden;
}

.hero-content {
  max-width: 820px;
  margin: 0 auto var(--space-12);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.35rem 0.9rem;
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast);
}

.hero-badge:hover {
  border-color: var(--color-border-hover);
}

.hero-badge-sparkle {
  color: var(--color-accent);
}

.hero-headline {
  font-size: var(--text-5xl);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.06;
  margin-bottom: var(--space-6);
  color: var(--color-text-primary);
}

.hero-headline-accent {
  background: linear-gradient(135deg, #FFFFFF 20%, #DDD6FE 60%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="light"] .hero-headline-accent {
  background: linear-gradient(135deg, #15151A 20%, #4C1D95 70%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 620px;
  margin-bottom: var(--space-8);
  line-height: 1.55;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}

.hero-platforms-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.hero-platform-dot {
  font-size: 8px;
  opacity: 0.5;
}

/* Hero 3D Perspective Visual Mockup */
.hero-visual-wrapper {
  perspective: 1200px;
  position: relative;
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.hero-mockup-tilt {
  transform: rotateX(8deg) translateY(0px) scale(0.98);
  transform-style: preserve-3d;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease;
  will-change: transform;
}

.hero-visual-wrapper:hover .hero-mockup-tilt {
  transform: rotateX(2deg) translateY(-8px) scale(1);
}

.hero-glow-backdrop {
  position: absolute;
  top: 10%;
  left: 15%;
  right: 15%;
  height: 60%;
  background: radial-gradient(ellipse at center, rgba(139, 92, 246, 0.22) 0%, rgba(139, 92, 246, 0) 70%);
  filter: blur(60px);
  pointer-events: none;
  z-index: -1;
}

/* ==========================================================================
   2. Features Section (Bento Grid)
   ========================================================================== */
.feature-preview-box {
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  overflow: hidden;
}

/* Feature 1: Directory Tree Preview */
.feature-dir-tree {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-secondary);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.tree-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.tree-tag-lossless {
  margin-left: auto;
  font-size: 9px;
  background: rgba(16, 185, 129, 0.15);
  color: var(--color-success);
  padding: 1px 6px;
  border-radius: 4px;
  font-weight: 600;
}

/* Feature 2: Audio Formats Strip */
.format-pills-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.format-chip {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 9px;
  border-radius: var(--radius-sm);
  background: var(--color-surface-hover);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
}

.format-chip.chip-highlight {
  border-color: var(--color-border-accent);
  background: var(--color-accent-subtle);
  color: var(--color-accent);
}

/* Feature 3: Sleep Timer preview */
.sleep-timer-preview {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-surface);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.sleep-timer-time {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-accent);
}

/* Feature 4: Media Keys preview */
.media-keys-preview {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
}

.media-key-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.media-key-label {
  font-size: 10px;
  color: var(--color-text-muted);
}

/* ==========================================================================
   3. Interactive Showcase Section
   ========================================================================== */
.showcase-display {
  position: relative;
  min-height: 480px;
}

.showcase-view {
  display: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.showcase-view.active {
  display: block;
  opacity: 1;
}

/* Showcase: Library Album Grid */
.showcase-album-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  padding: var(--space-4);
}

.album-card-mock {
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  cursor: pointer;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.album-card-mock:hover {
  transform: translateY(-2px);
  border-color: var(--color-border-hover);
}

.album-art-wrap {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-3);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.album-art-1 { background: linear-gradient(135deg, #4F46E5, #06B6D4); }
.album-art-2 { background: linear-gradient(135deg, #8B5CF6, #EC4899); }
.album-art-3 { background: linear-gradient(135deg, #10B981, #3B82F6); }
.album-art-4 { background: linear-gradient(135deg, #F59E0B, #EF4444); }

.album-title-mock {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 2px;
}

.album-artist-mock {
  font-size: 11px;
  color: var(--color-text-muted);
}


/* Showcase: Queue View */
.showcase-queue-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
}

.queue-row {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  transition: background var(--transition-fast);
}

.queue-row:hover {
  background: var(--color-surface-hover);
}

.queue-handle {
  color: var(--color-text-muted);
  cursor: grab;
}

.queue-track-meta {
  flex: 1;
}

.queue-time {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-muted);
}

/* ==========================================================================
   4. Music Visualizer Section (Canvas)
   ========================================================================== */
.visualizer-section {
  position: relative;
  overflow: hidden;
}

.visualizer-card {
  background: #06070B;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-elevated), var(--shadow-glow);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

[data-theme="light"] .visualizer-card {
  background: #0E1017;
  color: #F5F5F7;
}

.visualizer-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  z-index: 2;
}

.visualizer-mode-tabs {
  display: flex;
  background: rgba(255, 255, 255, 0.06);
  padding: 3px;
  border-radius: var(--radius-full);
  gap: 2px;
}

.vis-tab-btn {
  font-size: var(--text-xs);
  font-weight: 500;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  color: #9A9DA8;
  transition: all var(--transition-fast);
  background: transparent;
}

.vis-tab-btn:hover {
  color: #FFFFFF;
}

.vis-tab-btn.active {
  background: rgba(139, 92, 246, 0.3);
  color: #FFFFFF;
  border: 1px solid rgba(139, 92, 246, 0.5);
  font-weight: 600;
}

.visualizer-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.vis-ctrl-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.1);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: all var(--transition-fast);
}

.vis-ctrl-btn:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.3);
}

.vis-canvas-container {
  width: 100%;
  height: 380px;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: radial-gradient(circle at center, #120E22 0%, #06070B 85%);
}

#visualizerCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.visualizer-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: #7A7D8A;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: var(--space-4);
}

.vis-metrics {
  display: flex;
  gap: var(--space-5);
  font-family: var(--font-mono);
}

/* ==========================================================================
   5. Product Philosophy Section
   ========================================================================== */
.philosophy-section {
  padding: var(--space-32) 0;
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
  position: relative;
}

.philosophy-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: left;
}

.philosophy-quote {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--color-text-primary);
  margin-bottom: var(--space-8);
}

.philosophy-lead {
  font-size: var(--text-xl);
  line-height: 1.6;
  color: var(--color-text-secondary);
  max-width: 720px;
  margin-bottom: var(--space-16);
}

.philosophy-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.pillar-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.pillar-number {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-accent);
}

.pillar-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text-primary);
}

.pillar-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   6. Download Section
   ========================================================================== */
.download-section {
  position: relative;
}

.download-highlight-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-2xl);
  padding: var(--space-8) var(--space-10);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition-normal);
}

.download-highlight-info {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.detected-os-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-xl);
  background: var(--color-accent-subtle);
  border: 1px solid var(--color-border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  flex-shrink: 0;
}

.detected-os-icon svg {
  width: 30px;
  height: 30px;
}

.detected-os-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-1);
}

.detected-os-meta {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-mono);
}

.download-highlight-action {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-2);
}

.download-note {
  font-size: 11px;
  color: var(--color-text-muted);
}

/* Other Platforms Accordion / Grid */
.other-platforms-toggle-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-8);
  transition: all var(--transition-fast);
}

.other-platforms-toggle-btn:hover {
  color: var(--color-text-primary);
  border-color: var(--color-border-hover);
  background: var(--color-surface-hover);
}

.other-platforms-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  transition: all var(--transition-normal);
}

.platform-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: all var(--transition-fast);
}

.platform-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
}

.platform-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.platform-card-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-primary);
}

.platform-card-name {
  font-size: var(--text-base);
  font-weight: 600;
}

.platform-asset-details {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-family: var(--font-mono);
}

.platform-card .btn {
  width: 100%;
  margin-top: auto;
}

/* Fallback & Alert states */
.download-alert {
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-lg);
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.25);
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
  font-size: var(--text-sm);
}

/* ==========================================================================
   7. GitHub Integration Section
   ========================================================================== */
.github-section {
  position: relative;
}

.github-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
}

.github-info {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.github-icon-large {
  width: 48px;
  height: 48px;
  color: var(--color-text-primary);
  flex-shrink: 0;
}

.github-heading {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-1);
}

.github-repo-sub {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.github-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.stars-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.5rem 0.9rem;
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-primary);
}

.stars-icon {
  color: #F59E0B;
}

/* ==========================================================================
   8. Footer
   ========================================================================== */
.footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-16) 0 var(--space-8);
  background: var(--color-bg);
  position: relative;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-tagline {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.footer-col-title {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-link {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-text-primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--color-border-subtle);
  padding-top: var(--space-6);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-tech-stack {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}