/* ==========================================================================
   GLASS & CLAY STUDIO — DESIGN SYSTEM & STYLESHEET
   Aesthetics: Deep Obsidian Dark Mode, Glassmorphism, Micro-interactions
   ========================================================================== */

:root {
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Color Palette */
  --bg-primary: #07090e;
  --bg-secondary: #0d121d;
  --bg-panel: rgba(16, 23, 38, 0.75);
  --bg-panel-border: rgba(255, 255, 255, 0.08);
  --bg-panel-hover: rgba(25, 36, 58, 0.85);

  --accent-primary: #6366f1;
  --accent-primary-hover: #4f46e5;
  --accent-cyan: #06b6d4;
  --accent-pink: #ec4899;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
  --accent-glow: 0 0 24px rgba(99, 102, 241, 0.4);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-focus: #6366f1;

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

  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html, body {
  max-width: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  position: relative;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Ambient Glow Orbs */
.bg-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.18;
  pointer-events: none;
  z-index: 0;
  transition: all 1s ease;
}
.orb-1 {
  width: 500px;
  height: 500px;
  background: #6366f1;
  top: -100px;
  left: -100px;
}
.orb-2 {
  width: 600px;
  height: 600px;
  background: #ec4899;
  bottom: -150px;
  right: -150px;
}
.orb-3 {
  width: 450px;
  height: 450px;
  background: #06b6d4;
  top: 40%;
  left: 45%;
}

/* Custom Scrollbars */
.custom-scrollbar::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
.custom-scrollbar::-webkit-scrollbar-track {
  background: transparent;
}
.custom-scrollbar::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border-radius: 4px;
}
.custom-scrollbar::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* Utility classes */
.hidden {
  display: none !important;
}

/* ==========================================================================
   ADSTERRA AD SLOTS
   ========================================================================== */
.ad-slot {
  width: 100%;
  max-width: 980px;
  margin: 14px auto;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 10;
  padding: 0 16px;
  overflow: hidden;
}
.ad-slot iframe {
  max-width: 100%;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.app-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 9, 14, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 24px;
}
.header-container {
  max-width: 1540px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}
.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: var(--accent-glow);
  flex-shrink: 0;
}
.brand-text h1 {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
}
.brand-text h1 span {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.tagline {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Mode Switcher Tabs */
.mode-switcher-container {
  display: flex;
  background: rgba(255, 255, 255, 0.05);
  padding: 4px;
  border-radius: 9999px;
  border: 1px solid var(--border-subtle);
  gap: 4px;
}
.mode-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 9999px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-normal);
}
.mode-tab:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}
.mode-tab.active {
  background: #ffffff;
  color: #0f172a;
  box-shadow: 0 4px 16px rgba(255, 255, 255, 0.2);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-normal);
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: var(--accent-glow);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.6);
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-subtle);
  color: var(--text-secondary);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}
.btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.3);
}
.btn-accent {
  background: #ffffff;
  color: #07090e;
  font-weight: 700;
  box-shadow: 0 4px 18px rgba(255, 255, 255, 0.25);
}
.btn-accent:hover {
  background: #e2e8f0;
  transform: translateY(-1px);
}
.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   PRESETS SECTION
   ========================================================================== */
.presets-section {
  position: relative;
  z-index: 20;
  background: rgba(13, 18, 29, 0.6);
  border-bottom: 1px solid var(--border-subtle);
  backdrop-filter: blur(12px);
  padding: 10px 24px;
}
.presets-container {
  max-width: 1540px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 14px;
  overflow: hidden;
}
.presets-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.presets-scroll {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 4px;
  scrollbar-width: none;
}
.presets-scroll::-webkit-scrollbar {
  display: none;
}
.preset-chip {
  padding: 6px 14px;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}
.preset-chip:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}
.preset-chip.active {
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
  border-color: #6366f1;
}

/* ==========================================================================
   MAIN WORKSPACE LAYOUT
   ========================================================================== */
.main-layout {
  position: relative;
  z-index: 10;
  max-width: 1540px;
  margin: 20px auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 24px;
  align-items: start;
}

/* Controls Panel */
.controls-panel {
  background: var(--bg-panel);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--bg-panel-border);
  border-radius: var(--radius-xl);
  padding: 24px;
  max-height: calc(100vh - 170px);
  overflow-y: auto;
  position: sticky;
  top: 90px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}
.panel-header h2 {
  font-size: 1.1rem;
  font-weight: 700;
}
.badge {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: 6px;
  background: rgba(99, 102, 241, 0.15);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.controls-group {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.control-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.control-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.825rem;
}
.control-label-row label {
  color: var(--text-secondary);
  font-weight: 600;
}
.control-value {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #a5b4fc;
  background: rgba(99, 102, 241, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
}

.control-divider {
  display: flex;
  align-items: center;
  margin: 6px 0;
}
.control-divider span {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}
.control-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-subtle);
  margin-left: 12px;
}

.control-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

/* Range Sliders */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 9999px;
  outline: none;
  cursor: pointer;
  transition: var(--transition-fast);
}
input[type="range"]:hover {
  background: rgba(255, 255, 255, 0.18);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.7);
  border: 2px solid #6366f1;
  cursor: grab;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}
input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.18);
  box-shadow: 0 0 16px rgba(99, 102, 241, 0.9);
}
input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.7);
  border: 2px solid #6366f1;
  cursor: grab;
}

/* Color Pickers & Hex Inputs */
.color-picker-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
input[type="color"] {
  -webkit-appearance: none;
  border: none;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  background: transparent;
  padding: 0;
}
input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}
input[type="color"]::-webkit-color-swatch {
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.hex-input {
  width: 80px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  outline: none;
  text-transform: uppercase;
}
.hex-input:focus {
  border-color: var(--border-focus);
}
.color-swatches {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}
.swatch {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.2);
  cursor: pointer;
  transition: var(--transition-fast);
}
.swatch:hover {
  transform: scale(1.25);
  border-color: #ffffff;
}

/* ==========================================================================
   RIGHT COLUMN: LIVE STAGE & CODE BOX
   ========================================================================== */
.preview-column {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
}

/* Stage Toolbar */
.stage-toolbar {
  background: var(--bg-panel);
  border: 1px solid var(--bg-panel-border);
  border-radius: var(--radius-lg);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.stage-toolbar-group {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.toolbar-label {
  font-size: 0.775rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.bg-selector-buttons,
.mockup-selector {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(0, 0, 0, 0.25);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  overflow-x: auto;
  max-width: 100%;
}

.bg-btn,
.mockup-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}
.bg-btn:hover,
.mockup-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}
.bg-btn.active,
.mockup-btn.active {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.bg-preview {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}
.mesh-preview { background: linear-gradient(135deg, #ec4899, #8b5cf6, #3b82f6); }
.cyber-preview { background: linear-gradient(135deg, #06b6d4, #3b82f6, #9333ea); }
.sunset-preview { background: linear-gradient(135deg, #f97316, #ef4444, #8b5cf6); }
.dark-preview { background: #0f172a; border: 1px solid #334155; }
.light-preview { background: #e2e8f0; }

/* Preview Canvas Stage */
.preview-stage-wrapper {
  position: relative;
  width: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  border: 1px solid var(--bg-panel-border);
}
.preview-canvas {
  width: 100%;
  min-height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 16px;
  position: relative;
  overflow: hidden;
  transition: background 0.4s ease;
}

/* Background Types */
.bg-mesh {
  background: radial-gradient(at 0% 0%, #a855f7 0px, transparent 50%),
              radial-gradient(at 100% 0%, #ec4899 0px, transparent 50%),
              radial-gradient(at 100% 100%, #3b82f6 0px, transparent 50%),
              radial-gradient(at 0% 100%, #06b6d4 0px, transparent 50%),
              #0f172a;
}
.bg-cyber {
  background: radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.6) 0%, transparent 40%),
              radial-gradient(circle at 20% 80%, rgba(168, 85, 247, 0.6) 0%, transparent 40%),
              radial-gradient(circle at 50% 50%, rgba(236, 72, 153, 0.4) 0%, transparent 50%),
              #070a13;
}
.bg-sunset {
  background: linear-gradient(135deg, #4c0519 0%, #1e1b4b 50%, #022c22 100%),
              radial-gradient(circle at top right, #f43f5e 0%, transparent 60%);
}
.bg-dark {
  background: #090d16;
  background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 0);
  background-size: 24px 24px;
}
.bg-light {
  background: #f1f5f9;
  background-image: radial-gradient(#cbd5e1 1px, transparent 0);
  background-size: 20px 20px;
}

/* Canvas Decorative Floating Objects */
.canvas-decor {
  position: absolute;
  pointer-events: none;
  transition: var(--transition-normal);
}
.decor-circle-1 {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: linear-gradient(135deg, #f43f5e, #fb923c);
  top: 15%;
  left: 12%;
  box-shadow: 0 10px 30px rgba(244, 63, 94, 0.4);
}
.decor-circle-2 {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: linear-gradient(135deg, #06b6d4, #3b82f6);
  bottom: 12%;
  right: 14%;
  box-shadow: 0 10px 30px rgba(6, 182, 212, 0.4);
}
.decor-pill {
  width: 180px;
  height: 60px;
  border-radius: 9999px;
  background: linear-gradient(135deg, #8b5cf6, #d946ef);
  top: 55%;
  left: 20%;
  transform: rotate(-25deg);
  opacity: 0.8;
}

/* ==========================================================================
   TARGET LIVE ELEMENT
   ========================================================================== */
.target-element {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 390px;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

/* MOCKUP 1: Profile Card */
.mockup-profile {
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.mockup-avatar-wrap {
  position: relative;
  margin-bottom: 14px;
}
.mockup-avatar {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: linear-gradient(135deg, #818cf8, #c084fc);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}
.online-indicator {
  position: absolute;
  bottom: 2px;
  right: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #10b981;
  border: 3px solid rgba(255, 255, 255, 0.8);
}
.mockup-user-info h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: inherit;
}
.mockup-user-info p {
  font-size: 0.85rem;
  opacity: 0.8;
  margin-bottom: 20px;
}
.mockup-stats {
  display: flex;
  width: 100%;
  justify-content: space-around;
  padding: 12px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  margin-bottom: 20px;
}
.stat-box {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.stat-num {
  font-size: 1.05rem;
  font-weight: 700;
}
.stat-tag {
  font-size: 0.7rem;
  opacity: 0.7;
  text-transform: uppercase;
}
.mockup-buttons {
  display: flex;
  width: 100%;
  gap: 10px;
}
.btn-mockup-primary,
.btn-mockup-secondary {
  flex: 1;
  padding: 10px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}
.btn-mockup-primary {
  background: #ffffff;
  color: #0f172a;
  border: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}
.btn-mockup-primary:hover {
  transform: translateY(-2px);
  background: #f8fafc;
}
.btn-mockup-secondary {
  background: rgba(255, 255, 255, 0.15);
  color: inherit;
  border: 1px solid rgba(255, 255, 255, 0.2);
}
.btn-mockup-secondary:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* MOCKUP 2: Quantum Credit Card */
.mockup-credit {
  padding: 24px;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.credit-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.credit-chip {
  width: 44px;
  height: 32px;
  border-radius: 6px;
  background: linear-gradient(135deg, #fbbf24, #d97706);
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2);
}
.credit-logo {
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  opacity: 0.9;
}
.credit-number {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  letter-spacing: 0.18em;
  font-weight: 600;
  margin: 20px 0;
  text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}
.credit-bottom {
  display: flex;
  justify-content: space-between;
}
.credit-label {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  opacity: 0.6;
}
.credit-name,
.credit-exp {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
}

/* MOCKUP 3: Music Player */
.mockup-music {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.music-header {
  display: flex;
  align-items: center;
  gap: 14px;
}
.album-art {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #ec4899, #8b5cf6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}
.track-info h4 {
  font-size: 1.05rem;
  font-weight: 700;
}
.track-info p {
  font-size: 0.8rem;
  opacity: 0.75;
}
.track-progress {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.progress-bar {
  width: 100%;
  height: 6px;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.2);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: #ffffff;
  border-radius: 9999px;
}
.time-row {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  opacity: 0.7;
}
.player-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}
.player-btn {
  background: transparent;
  border: none;
  color: inherit;
  cursor: pointer;
  opacity: 0.8;
  transition: var(--transition-fast);
}
.player-btn:hover {
  opacity: 1;
  transform: scale(1.15);
}
.player-btn.btn-play {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #ffffff;
  color: #0f172a;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}

/* MOCKUP 4: Plain Minimal */
.mockup-blank {
  padding: 36px 24px;
  text-align: center;
}
.blank-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.blank-icon {
  font-size: 2.2rem;
  margin-bottom: 4px;
}
.blank-inner h3 {
  font-size: 1.15rem;
  font-weight: 700;
}
.blank-inner p {
  font-size: 0.85rem;
  opacity: 0.8;
  max-width: 280px;
}

/* ==========================================================================
   CODE EXPORT BOX
   ========================================================================== */
.code-export-box {
  background: var(--bg-secondary);
  border: 1px solid var(--bg-panel-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}
.code-box-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: rgba(16, 23, 38, 0.8);
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 10px;
}
.code-format-tabs {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  max-width: 100%;
}
.code-tab {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}
.code-tab:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}
.code-tab.active {
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
}

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

.code-content-wrapper {
  padding: 18px;
  max-height: 250px;
  overflow-y: auto;
  background: #090d16;
}
.code-content-wrapper pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
  color: #e2e8f0;
  white-space: pre-wrap;
  word-break: break-all;
}

/* ==========================================================================
   SEO KNOWLEDGE HUB & DEVELOPER GUIDE
   ========================================================================== */
.seo-knowledge-section {
  position: relative;
  z-index: 10;
  max-width: 1540px;
  margin: 60px auto 20px;
  padding: 0 24px;
}
.seo-container {
  background: rgba(13, 18, 29, 0.75);
  border: 1px solid var(--bg-panel-border);
  border-radius: var(--radius-xl);
  padding: 40px 36px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}
.seo-header {
  text-align: center;
  max-width: 850px;
  margin: 0 auto 30px;
}
.seo-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #a5b4fc;
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.3);
  padding: 4px 14px;
  border-radius: 9999px;
  margin-bottom: 12px;
}
.seo-header h2 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #ffffff;
  margin-bottom: 10px;
}
.seo-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Quick Index Nav Pills */
.seo-nav-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 36px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
}
.seo-pill {
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  padding: 6px 14px;
  border-radius: 9999px;
  text-decoration: none;
  transition: var(--transition-fast);
}
.seo-pill:hover {
  color: #ffffff;
  background: rgba(99, 102, 241, 0.2);
  border-color: rgba(99, 102, 241, 0.4);
}

/* SEO Grid */
.seo-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 36px;
}
.seo-article {
  display: flex;
  flex-direction: column;
  gap: 40px;
  min-width: 0;
}
.seo-chapter h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: #f8fafc;
  margin-bottom: 14px;
}
.seo-chapter h4 {
  font-size: 1.05rem;
  font-weight: 600;
  color: #cbd5e1;
  margin: 18px 0 10px;
}
.seo-chapter p {
  color: #94a3b8;
  line-height: 1.7;
  font-size: 0.95rem;
  margin-bottom: 14px;
}
.seo-chapter strong {
  color: #f1f5f9;
}
.seo-chapter code {
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.85em;
  color: #a5b4fc;
}

/* Checklist */
.seo-checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 14px 0;
}
.seo-checklist li {
  position: relative;
  padding-left: 24px;
  color: #94a3b8;
  font-size: 0.925rem;
  line-height: 1.6;
}
.seo-checklist li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #10b981;
  font-weight: 700;
}

/* Code Sample Box */
.seo-code-sample {
  background: #090d16;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  margin: 14px 0;
  overflow-x: auto;
}
.code-title {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.seo-code-sample pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #e2e8f0;
  line-height: 1.5;
}

/* Table */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: 16px 0;
}
.seo-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  text-align: left;
}
.seo-table th {
  background: rgba(255, 255, 255, 0.06);
  color: #f8fafc;
  font-weight: 700;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.seo-table td {
  padding: 12px 14px;
  color: #94a3b8;
  border-bottom: 1px solid var(--border-subtle);
}
.seo-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 14px;
}
.faq-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  transition: var(--transition-fast);
}
.faq-item[open] {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(99, 102, 241, 0.3);
}
.faq-question {
  font-weight: 700;
  font-size: 0.95rem;
  color: #f1f5f9;
  cursor: pointer;
  outline: none;
}
.faq-answer {
  margin-top: 10px;
  color: #94a3b8;
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Sidebar Cards */
.seo-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.sidebar-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
}
.sidebar-card h4 {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #cbd5e1;
  margin-bottom: 14px;
}
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.seo-badge {
  font-size: 0.75rem;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 4px 8px;
  border-radius: 6px;
}
.resource-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.resource-links a {
  color: #a5b4fc;
  font-size: 0.85rem;
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-fast);
}
.resource-links a:hover {
  color: #ffffff;
  text-decoration: underline;
}

/* ==========================================================================
   WATCH FREE MOVIES PROMO BANNER
   ========================================================================== */
.movie-promo-section {
  position: relative;
  z-index: 10;
  max-width: 1540px;
  margin: 40px auto 20px;
  padding: 0 24px;
}
.movie-promo-container {
  background: linear-gradient(135deg, rgba(225, 29, 72, 0.15) 0%, rgba(13, 18, 29, 0.95) 60%, rgba(99, 102, 241, 0.15) 100%);
  border: 1px solid rgba(225, 29, 72, 0.35);
  border-radius: var(--radius-xl);
  padding: 28px 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 20px 45px rgba(225, 29, 72, 0.15), 0 0 30px rgba(0, 0, 0, 0.5);
  transition: var(--transition-normal);
}
.movie-promo-container:hover {
  border-color: rgba(225, 29, 72, 0.6);
  transform: translateY(-2px);
  box-shadow: 0 25px 55px rgba(225, 29, 72, 0.25), 0 0 35px rgba(0, 0, 0, 0.6);
}
.movie-promo-content {
  display: flex;
  align-items: center;
  gap: 24px;
}
.movie-logo-wrap {
  width: 76px;
  height: 76px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid rgba(255, 255, 255, 0.2);
  flex-shrink: 0;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  background: #000;
}
.movie-brand-logo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.movie-text-content {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.movie-badge-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.badge-pill {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 10px;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #e2e8f0;
}
.badge-pill.live-pulse {
  background: rgba(225, 29, 72, 0.25);
  border-color: #e11d48;
  color: #fecdd3;
}
.movie-text-content h3 {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: #ffffff;
  margin: 0;
}
.movie-text-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
  max-width: 680px;
}
.movie-action-wrap {
  flex-shrink: 0;
}
.btn-movie-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #e11d48 0%, #be123c 100%);
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(225, 29, 72, 0.5);
  transition: var(--transition-normal);
  white-space: nowrap;
}
.btn-movie-cta:hover {
  background: linear-gradient(135deg, #f43f5e 0%, #e11d48 100%);
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 32px rgba(225, 29, 72, 0.7);
}

/* ==========================================================================
   TOAST NOTIFICATION
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: calc(100vw - 48px);
}
.toast {
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid rgba(99, 102, 241, 0.4);
  backdrop-filter: blur(16px);
  color: #ffffff;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 15px rgba(99, 102, 241, 0.3);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  font-weight: 600;
  animation: toastSlideIn 0.35s var(--transition-bounce) forwards;
}
.toast-icon {
  color: #10b981;
}
@keyframes toastSlideIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}
@keyframes toastSlideOut {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateY(20px) scale(0.9);
  }
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.app-footer {
  position: relative;
  z-index: 10;
  border-top: 1px solid var(--border-subtle);
  background: rgba(7, 9, 14, 0.9);
  padding: 28px 24px;
  margin-top: 40px;
}
.footer-container {
  max-width: 1540px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-left {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.footer-container p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.footer-subtext {
  font-size: 0.75rem;
  color: var(--text-muted);
}
.footer-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tech-pill {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  padding: 4px 10px;
  border-radius: 9999px;
}

/* ==========================================================================
   COMPLETE MOBILE RESPONSIVENESS (1080px, 768px, 480px, 320px)
   ========================================================================== */
@media (max-width: 1180px) {
  .main-layout {
    grid-template-columns: 1fr;
  }
  .controls-panel {
    position: static;
    max-height: none;
  }
  .seo-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .movie-promo-container {
    flex-direction: column;
    align-items: stretch;
    padding: 24px;
  }
  .movie-promo-content {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .btn-movie-cta {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .app-header {
    padding: 12px 16px;
  }
  .header-container {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  .brand {
    justify-content: center;
  }
  .mode-switcher-container {
    justify-content: center;
    width: 100%;
  }
  .mode-tab {
    flex: 1;
    justify-content: center;
    padding: 8px 12px;
    font-size: 0.8rem;
  }
  .header-actions {
    justify-content: center;
    width: 100%;
  }
  .header-actions .btn {
    flex: 1;
  }
  .main-layout {
    padding: 0 16px;
    margin: 14px auto;
  }
  .controls-panel {
    padding: 18px 14px;
    border-radius: var(--radius-lg);
  }
  .stage-toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 12px;
  }
  .stage-toolbar-group {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }
  .bg-selector-buttons,
  .mockup-selector {
    width: 100%;
    justify-content: space-between;
  }
  .bg-btn,
  .mockup-btn {
    flex: 1;
    justify-content: center;
    padding: 6px 4px;
    font-size: 0.72rem;
  }
  .preview-canvas {
    min-height: 400px;
    padding: 30px 10px;
  }
  .target-element {
    max-width: 100%;
  }
  .code-box-header {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .code-format-tabs {
    width: 100%;
    justify-content: space-between;
  }
  .code-tab {
    flex: 1;
    text-align: center;
    padding: 6px 6px;
    font-size: 0.72rem;
  }
  .code-actions {
    width: 100%;
  }
  .code-actions .btn {
    flex: 1;
  }
  .seo-knowledge-section {
    padding: 0 16px;
    margin: 40px auto 16px;
  }
  .seo-container {
    padding: 24px 16px;
    border-radius: var(--radius-lg);
  }
  .seo-header h2 {
    font-size: 1.5rem;
  }
  .footer-container {
    flex-direction: column;
    text-align: center;
    gap: 16px;
  }
  .footer-left {
    align-items: center;
  }
  .footer-badges {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .brand-text h1 {
    font-size: 1.1rem;
  }
  .brand-icon {
    width: 38px;
    height: 38px;
  }
  .control-grid-2 {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .color-picker-wrapper {
    justify-content: space-between;
  }
  .color-swatches {
    margin-left: 0;
    width: 100%;
    justify-content: space-between;
    margin-top: 4px;
  }
  .mockup-profile {
    padding: 20px 14px;
  }
  .mockup-credit {
    padding: 16px;
    min-height: 190px;
  }
  .credit-number {
    font-size: 0.95rem;
  }
  .mockup-music {
    padding: 16px;
  }
  .movie-promo-section {
    padding: 0 16px;
  }
  .movie-text-content h3 {
    font-size: 1.2rem;
  }
  .movie-text-content p {
    font-size: 0.825rem;
  }
}