/* ============================================
   reSOURCERY - Main Stylesheet
   Dark Slate + Indigo/Cyan Wizard Theme
   ============================================ */

/* CSS Variables */
:root {
  /* Dark Charcoal Background Palette */
  --color-bg-dark: #050508;
  --color-bg-primary: #08080c;
  --color-bg-secondary: #0d0d14;
  --color-bg-tertiary: #12121a;
  --color-bg-elevated: #181822;
  --color-bg-surface: #1e1e2a;

  /* Monochrome Gray Scale - Cooler shift */
  --gray-100: #eef0f5;
  --gray-200: #cdd1db;
  --gray-300: #9da3b3;
  --gray-400: #6e7588;
  --gray-500: #4e5568;
  --gray-600: #3a3f52;
  --gray-700: #282c3a;
  --gray-800: #1e2130;
  --gray-900: #141622;

  /* Cyan/Teal Accent - From wizard's eyes & music note */
  --cyan-50: #0a2a32;
  --cyan-100: #0d3d4a;
  --cyan-200: #115566;
  --cyan-300: #1a7d8a;
  --cyan-400: #32b4c4;
  --cyan-500: #4dd8c8;
  --cyan-600: #5ce6d6;
  --cyan-700: #7df0e4;

  /* Indigo/Blue - From wizard's outer glow */
  --indigo-900: #0c0f2e;
  --indigo-800: #141a44;
  --indigo-700: #1e2760;
  --indigo-600: #2e3a88;
  --indigo-500: #4455aa;
  --indigo-400: #5568cc;
  --indigo-300: #7088dd;

  /* Deep Teal/Slate for backing */
  --teal-900: #060e1e;
  --teal-800: #0a1833;
  --teal-700: #0e2244;
  --teal-600: #142e55;
  --teal-500: #1a3d6e;

  /* Electric Accent - Cyan glow from wizard icon */
  --accent-electric: #5ce6d6;
  --accent-electric-dim: rgba(92, 230, 214, 0.45);
  --accent-electric-glow: rgba(92, 230, 214, 0.12);

  /* Gradients - Indigo-to-cyan wizard glow */
  --gradient-cyan-dark: linear-gradient(135deg, var(--indigo-500) 0%, var(--cyan-400) 100%);
  --gradient-cyan-subtle: linear-gradient(135deg, var(--indigo-700) 0%, var(--teal-700) 100%);
  --gradient-dark-vertical: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-dark) 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0.01) 100%);
  /* Ambient glow + noise: shared by the page background layers and .top-safe-scrim,
     which must replicate them exactly — keep these as the single definition */
  --gradient-ambient:
    radial-gradient(ellipse at 20% 10%, var(--indigo-900) 0%, transparent 40%),
    radial-gradient(ellipse at 80% 90%, var(--cyan-50) 0%, transparent 40%);
  --noise-texture: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");

  /* Glass Effect - Dark and glassy with blue tint */
  --glass-bg: rgba(12, 12, 22, 0.88);
  --glass-bg-light: rgba(22, 22, 36, 0.82);
  --glass-border: rgba(255, 255, 255, 0.05);
  --glass-border-hover: rgba(255, 255, 255, 0.09);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.65);
  --glass-blur: blur(24px);

  /* Text Colors - Monochrome only */
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.65);
  --text-tertiary: rgba(255, 255, 255, 0.45);
  --text-muted: rgba(255, 255, 255, 0.25);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-spring: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* VASEY/AI Universal Footer Properties */
  --border-subtle: rgba(255, 255, 255, 0.05);
  --border-glow: rgba(92, 230, 214, 0.15);
  --accent-deep: var(--indigo-600);
  --accent-dim: var(--cyan-400);
  --accent-primary: var(--cyan-500);
  --accent-glow-strong: rgba(92, 230, 214, 0.35);

  /* Font Families */
  --font-display: 'Bebas Neue', sans-serif;
  --font-body: 'Reddit Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Safe Areas for iOS */
  --safe-top: env(safe-area-inset-top);
  --safe-bottom: env(safe-area-inset-bottom);
  --safe-left: env(safe-area-inset-left);
  --safe-right: env(safe-area-inset-right);
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
}

/* Pinch-zoom is enabled (WCAG 1.4.4); suppress double-tap zoom on controls only */
a, button, input, .toggle, .drop-zone {
  touch-action: manipulation;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--color-bg-dark);
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Subtle Noise Texture Overlay */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.015;
  z-index: 2;
  background-image: var(--noise-texture);
}

/* App Container */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--gradient-dark-vertical);
  position: relative;
  /* Safe area side padding for curved/notched screens — background extends behind via viewport-fit=cover */
  padding-left: var(--safe-left);
  padding-right: var(--safe-right);
}

/* Ambient Background - Dark indigo-blue glow */
.app-container::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: var(--gradient-ambient);
  pointer-events: none;
  z-index: 0;
  animation: ambientShift 20s ease-in-out infinite;
}

@keyframes ambientShift {
  0%, 100% { opacity: 0.6; transform: translate(0, 0); }
  50% { opacity: 0.4; transform: translate(-2%, 2%); }
}

/* ============================================
   TOP SAFE-AREA SCRIM
   Masks content scrolling under the iOS status bar /
   notch / Dynamic Island. Replicates the page background
   stack (gradient top stop + ambient glow + noise) so the
   inset region is indistinguishable from the page itself.
   Fixed overlay: occupies no layout space.
   ============================================ */
.top-safe-scrim {
  /* Short fade below the inset: the hero glow (.hero-header::before) bleeds
     above the header into this region at rest, so a hard opaque edge would
     clip it into a visible line. Collapses to 0 when there is no inset. */
  --scrim-fade: min(var(--safe-top), 16px);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: calc(var(--safe-top) + var(--scrim-fade));
  overflow: hidden;
  pointer-events: none;
  /* Above scrolling content (1) and body noise (2); below fixed chrome:
     menu button (200), settings panel (300), toasts (400) */
  z-index: 100;
  /* Top stop of --gradient-dark-vertical: the page gradient spans the full
     document height, so within the inset it renders as this flat color */
  background: var(--color-bg-primary);
  /* Opaque through the inset, then fades so passing content blends out */
  -webkit-mask-image: linear-gradient(to bottom, #000 var(--safe-top), transparent 100%);
  mask-image: linear-gradient(to bottom, #000 var(--safe-top), transparent 100%);
}

/* Continuation of the ambient glow (.app-container::before): identical
   viewport geometry and animation, so the glow crosses the scrim boundary
   without a seam. Both animations start on page load and stay in sync. */
.top-safe-scrim::before {
  content: '';
  position: absolute;
  top: -50vh;
  left: -50vw;
  width: 200vw;
  height: 200vh;
  background: var(--gradient-ambient);
  animation: ambientShift 20s ease-in-out infinite;
}

/* Continuation of the body noise overlay; same tile origin (viewport top-left) */
.top-safe-scrim::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.015;
  background-image: var(--noise-texture);
}

/* ============================================
   FLOATING MENU BUTTON
   Positioned absolutely in top-right corner
   ============================================ */
.floating-menu-btn {
  position: fixed;
  top: calc(var(--safe-top) + 16px);
  right: calc(var(--safe-right) + 16px);
  z-index: 200;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, rgba(25, 25, 25, 0.95) 0%, rgba(12, 12, 12, 0.98) 100%);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  color: var(--text-tertiary);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow:
    0 4px 16px rgba(0, 0, 0, 0.6),
    0 8px 32px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.floating-menu-btn:hover,
.floating-menu-btn:focus {
  background: linear-gradient(145deg, rgba(35, 35, 35, 0.95) 0%, rgba(18, 18, 18, 0.98) 100%);
  border-color: rgba(255, 255, 255, 0.1);
  color: var(--cyan-500);
  box-shadow:
    0 6px 20px rgba(0, 0, 0, 0.7),
    0 0 24px rgba(8, 145, 178, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.floating-menu-btn:active {
  transform: scale(0.95);
}

/* ============================================
   HERO HEADER - Centered Layout
   Matches FilePhile/StyleyeS design exactly
   ============================================ */
.hero-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--safe-top) + 48px) 24px 40px;
  position: relative;
  z-index: 1;
}

/* Ambient glow behind hero */
.hero-header::before {
  content: '';
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 120%;
  height: 160%;
  background: radial-gradient(ellipse at center 30%, var(--indigo-900) 0%, transparent 60%);
  pointer-events: none;
  opacity: 0.6;
  z-index: -1;
}

/* VASEY/AI PRESENTS - Indigo-cyan tagline at top */
.brand-tagline {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.35em;
  color: var(--indigo-400);
  text-transform: uppercase;
  margin-bottom: 28px;
  text-shadow: 0 0 30px rgba(85, 104, 204, 0.4);
}

/* Brand Row: Icon + Title + Version Badge */
.brand-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 16px;
  max-width: 100%;
  padding: 0 var(--space-sm);
}

/* App Logo - Borderless, displayed directly */
.app-logo {
  width: 56px;
  height: 56px;
  object-fit: contain;
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  filter: drop-shadow(0 4px 16px rgba(85, 104, 204, 0.5)) drop-shadow(0 0 24px rgba(92, 230, 214, 0.25));
}

/* App Title - Condensed gradient text matching FilePhile branding */
.app-title {
  font-family: 'Outfit', var(--font-body);
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  background: linear-gradient(135deg, var(--indigo-300) 0%, var(--cyan-400) 50%, var(--cyan-500) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 1;
  min-width: 0;
}

/* Version Badge - Subtle muted pill matching reference design */
.version-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  background: rgba(30, 30, 42, 0.9);
  border: 1px solid rgba(68, 85, 170, 0.2);
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text-secondary);
  white-space: nowrap;
  flex-shrink: 0;
  box-shadow:
    0 4px 12px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

/* Subtitle - Light gray below */
.app-subtitle {
  font-family: var(--font-body);
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--text-tertiary);
  letter-spacing: 0.01em;
}

/* ============================================
   MAIN CONTENT
   ============================================ */
.main-content {
  flex: 1;
  padding: var(--space-lg) var(--space-md);
  max-width: 600px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
}

/* Section Headers */
.section-header {
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-top: var(--space-xs);
}

/* Glass Panel - Enhanced 3D Layered Effect */
.glass-panel {
  background: linear-gradient(145deg, rgba(18, 18, 18, 0.9) 0%, rgba(10, 10, 10, 0.95) 100%);
  /* saturate() enriches whatever glows through the glass */
  backdrop-filter: var(--glass-blur) saturate(1.35);
  -webkit-backdrop-filter: var(--glass-blur) saturate(1.35);
  border: 1px solid rgba(255, 255, 255, 0.04);
  /* Crisper light-catching top edge */
  border-top-color: rgba(255, 255, 255, 0.09);
  border-radius: var(--radius-lg);
  /* Multi-layer 3D shadow system */
  box-shadow:
    /* Outer depth shadows */
    0 4px 16px rgba(0, 0, 0, 0.5),
    0 8px 32px rgba(0, 0, 0, 0.3),
    /* Inner top highlight for bevel */
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    /* Subtle bottom edge shadow */
    inset 0 -1px 0 rgba(0, 0, 0, 0.2);
  transition: all var(--transition-base);
  position: relative;
}

/* Top edge metallic shine */
.glass-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 10%;
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.06), transparent);
  border-radius: var(--radius-full);
  pointer-events: none;
}

/* Per-panel film grain — a whisper of texture over the glass.
   The drop zone keeps its own ::after (inner ambient glow) instead. */
.glass-panel:not(.drop-zone)::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background-image: var(--noise-texture);
  opacity: 0.02;
  pointer-events: none;
}

.glass-panel:hover {
  border-color: rgba(255, 255, 255, 0.08);
  box-shadow:
    0 6px 20px rgba(0, 0, 0, 0.6),
    0 12px 40px rgba(0, 0, 0, 0.35),
    0 0 24px rgba(8, 145, 178, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    inset 0 -1px 0 rgba(0, 0, 0, 0.2);
}

/* ============================================
   UPLOAD SECTION
   ============================================ */
.upload-section {
  animation: fadeSlideIn 0.5s ease;
}

/* Upload section header - stacked vertical layout for visual balance */
.upload-section .section-header {
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-xs);
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* URL Input */
.url-input-container {
  padding: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.input-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(0, 0, 0, 0.4);
  border-radius: var(--radius-md);
  padding: var(--space-xs) var(--space-sm);
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.input-wrapper:focus-within {
  background: rgba(0, 0, 0, 0.6);
  border-color: var(--cyan-400);
  /* Layered indigo ring + cyan glow */
  box-shadow:
    0 0 0 1px rgba(85, 104, 204, 0.35),
    0 0 18px rgba(50, 180, 196, 0.22);
}

.input-icon {
  color: var(--text-muted);
  flex-shrink: 0;
  transition: color var(--transition-fast);
}

.input-wrapper:focus-within .input-icon {
  color: var(--cyan-400);
}

.input-wrapper input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-body);
  /* ≥16px prevents iOS Safari auto-zoom on focus now that pinch-zoom is enabled */
  font-size: 1rem;
  padding: var(--space-sm);
}

.input-wrapper input::placeholder {
  color: var(--text-muted);
}

.url-submit-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--cyan-400) 0%, var(--teal-600) 100%);
  border: none;
  border-radius: var(--radius-sm);
  color: var(--color-bg-dark);
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
  /* 3D button effect */
  box-shadow:
    0 2px 8px rgba(8, 145, 178, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    inset 0 -1px 0 rgba(0, 0, 0, 0.1);
}

.url-submit-btn:hover {
  transform: translateY(-1px);
  box-shadow:
    0 4px 16px rgba(8, 145, 178, 0.5),
    0 0 24px rgba(8, 145, 178, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.url-submit-btn:active {
  transform: translateY(1px);
  box-shadow:
    0 1px 4px rgba(8, 145, 178, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* Drop Zone - Elegant gradient border design */
.drop-zone {
  padding: var(--space-2xl) var(--space-lg);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(68, 85, 170, 0.12);
  isolation: isolate;
}

/* Subtle gradient border glow */
.drop-zone::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: calc(var(--radius-lg) + 1px);
  background: linear-gradient(135deg, var(--indigo-500) 0%, var(--cyan-400) 50%, var(--indigo-500) 100%);
  opacity: 0;
  z-index: -1;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

/* Inner ambient glow effect */
.drop-zone::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: radial-gradient(ellipse at center, rgba(68, 85, 170, 0.04) 0%, transparent 70%);
  pointer-events: none;
  transition: all var(--transition-base);
}

.drop-zone:hover {
  border-color: rgba(68, 85, 170, 0.25);
  box-shadow:
    0 0 30px rgba(68, 85, 170, 0.08),
    0 8px 32px rgba(0, 0, 0, 0.3);
}

.drop-zone:hover::before,
.drop-zone.drag-over::before {
  opacity: 0.12;
}

.drop-zone:hover::after,
.drop-zone.drag-over::after {
  background: radial-gradient(ellipse at center, rgba(68, 85, 170, 0.08) 0%, transparent 70%);
}

.drop-zone.drag-over {
  border-color: var(--cyan-400);
  box-shadow:
    0 0 40px rgba(50, 180, 196, 0.12),
    0 8px 32px rgba(0, 0, 0, 0.3);
}

.drop-zone-content {
  position: relative;
  z-index: 1;
}

.drop-icon-container {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.drop-icon {
  color: var(--indigo-400);
  transition: all var(--transition-base);
  filter: drop-shadow(0 0 8px rgba(68, 85, 170, 0.3));
}

.drop-zone:hover .drop-icon,
.drop-zone.drag-over .drop-icon {
  transform: translateY(-6px);
  color: var(--cyan-400);
  filter: drop-shadow(0 0 16px rgba(50, 180, 196, 0.5));
}

.drop-icon-ring {
  position: absolute;
  width: 100px;
  height: 100px;
  border: 2px solid var(--indigo-400);
  border-radius: 50%;
  opacity: 0;
  animation: pulseRing 2s ease infinite;
}

.drop-zone:hover .drop-icon-ring,
.drop-zone.drag-over .drop-icon-ring {
  opacity: 0.3;
}

@keyframes pulseRing {
  0% { transform: scale(0.8); opacity: 0.5; }
  100% { transform: scale(1.4); opacity: 0; }
}

.drop-text {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.drop-subtext {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-bottom: var(--space-lg);
}

.supported-formats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-xs);
}

.format-badge {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  background: linear-gradient(145deg, rgba(25, 25, 25, 0.8) 0%, rgba(15, 15, 15, 0.9) 100%);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.04);
  /* Subtle 3D effect */
  box-shadow:
    0 1px 4px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.02);
  transition: all var(--transition-fast);
}

.format-badge:hover {
  color: var(--text-secondary);
  border-color: rgba(255, 255, 255, 0.08);
}

/* ============================================
   PROCESSING SECTION
   ============================================ */
.processing-section {
  animation: fadeSlideIn 0.5s ease;
}

.processing-panel {
  padding: var(--space-lg);
}

.processing-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
}

.processing-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.08em;
  color: var(--cyan-400);
}

.cancel-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, rgba(30, 30, 30, 0.8) 0%, rgba(15, 15, 15, 0.9) 100%);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  color: var(--text-tertiary);
  cursor: pointer;
  transition: all var(--transition-fast);
  /* 3D depth */
  box-shadow:
    0 2px 6px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.cancel-btn:hover {
  background: linear-gradient(145deg, rgba(40, 40, 40, 0.8) 0%, rgba(20, 20, 20, 0.9) 100%);
  border-color: rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
  box-shadow:
    0 3px 8px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

/* File Info */
.file-info {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: rgba(0, 0, 0, 0.4);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  border: 1px solid var(--glass-border);
}

.file-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-cyan-dark);
  border-radius: var(--radius-sm);
  color: var(--color-bg-dark);
}

.file-details {
  flex: 1;
  min-width: 0;
}

.file-name {
  display: block;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-size {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

/* Stage Indicator - Circular progress ring with animated stage icon */
.stage-indicator {
  position: relative;
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-md);
}

.stage-ring {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.stage-ring-bg {
  fill: none;
  stroke: var(--gray-800);
  stroke-width: 3;
}

.stage-ring-fill {
  fill: none;
  stroke: var(--indigo-500);
  stroke-width: 3;
  stroke-dasharray: 276.5;
  stroke-dashoffset: 276.5;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.5s ease, stroke 0.5s ease;
  filter: drop-shadow(0 0 6px currentColor);
}

.stage-icon-inner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--indigo-500);
  transition: color 0.5s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Hide all stage icons by default, show based on data-stage attribute */
.stage-icon-inner svg {
  display: none;
}

.stage-icon-inner[data-stage="download"] .si-download,
.stage-icon-inner[data-stage="file"] .si-file,
.stage-icon-inner[data-stage="waveform"] .si-waveform,
.stage-icon-inner[data-stage="music"] .si-music,
.stage-icon-inner[data-stage="check"] .si-check {
  display: block;
  animation: stageIconIn 0.35s var(--transition-spring);
}

@keyframes stageIconIn {
  from { opacity: 0; transform: scale(0.6); }
  to { opacity: 1; transform: scale(1); }
}

/* Pulse animation on the active stage icon */
.stage-icon-inner[data-stage="download"] .si-download,
.stage-icon-inner[data-stage="file"] .si-file,
.stage-icon-inner[data-stage="waveform"] .si-waveform,
.stage-icon-inner[data-stage="music"] .si-music {
  animation: stageIconIn 0.35s var(--transition-spring), stageIconPulse 2s ease-in-out 0.35s infinite;
}

@keyframes stageIconPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* Progress */
.progress-container {
  margin-bottom: var(--space-lg);
}

.progress-bar {
  height: 6px;
  background: var(--gray-800);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--gradient-cyan-dark);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
  position: relative;
}

.progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.25) 50%, transparent 100%);
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.progress-glow {
  position: absolute;
  top: -4px;
  right: 0;
  width: 24px;
  height: 14px;
  background: var(--cyan-400);
  filter: blur(10px);
  opacity: 0.6;
  animation: glowPulse 1s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 0.9; }
}

.progress-info {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-sm);
}

.progress-stage {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.progress-percent {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--cyan-400);
}

/* Processing Steps */
.processing-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.step {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  opacity: 0.35;
  transition: all var(--transition-base);
}

.step.active {
  opacity: 1;
  background: rgba(8, 145, 178, 0.08);
  border-left: 2px solid var(--cyan-400);
}

.step.completed {
  opacity: 0.65;
}

.step-indicator {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.step-check {
  color: var(--cyan-400);
  display: none;
}

.step.completed .step-check {
  display: block;
}

.step-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--gray-700);
  border-top-color: var(--cyan-400);
  border-radius: 50%;
  display: none;
}

.step.active .step-spinner {
  display: block;
  animation: spin 1s linear infinite;
}

.step.completed .step-spinner {
  display: none;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.step-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.step.active .step-label {
  color: var(--text-primary);
}

/* ============================================
   RESULTS SECTION
   ============================================ */
.results-section {
  animation: fadeSlideIn 0.5s ease;
}

.new-extract-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--cyan-400);
  background: transparent;
  border: 1px solid var(--cyan-400);
  border-radius: var(--radius-sm);
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.new-extract-btn:hover {
  background: rgba(8, 145, 178, 0.1);
  box-shadow: 0 0 16px rgba(8, 145, 178, 0.2);
}

/* Audio Info Card */
.audio-info-card {
  overflow: hidden;
  margin-bottom: var(--space-lg);
}

/* Waveform */
.audio-waveform {
  position: relative;
  height: 120px;
  background: linear-gradient(180deg, rgba(8, 145, 178, 0.05) 0%, transparent 100%);
  /* Click/tap to seek */
  cursor: pointer;
}

#waveformCanvas {
  width: 100%;
  height: 100%;
}

.waveform-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--glass-bg) 0%, transparent 10%, transparent 90%, var(--glass-bg) 100%);
  pointer-events: none;
}

/* Audio Player */
.audio-player {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--glass-border);
  overflow: hidden;
}

.play-btn {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-cyan-dark);
  border: none;
  border-radius: 50%;
  color: var(--color-bg-dark);
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
  /* Soft indigo depth + inner bevel, matching the playhead's blue */
  box-shadow:
    0 2px 10px rgba(68, 85, 170, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

.play-btn:hover {
  transform: scale(1.05);
  box-shadow:
    0 0 24px rgba(85, 104, 204, 0.45),
    0 2px 10px rgba(68, 85, 170, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.play-btn:active {
  transform: scale(0.95);
}

.play-btn .pause-icon {
  display: none;
}

.play-btn.playing .play-icon {
  display: none;
}

.play-btn.playing .pause-icon {
  display: block;
}

.time-display {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  flex-shrink: 0;
}

.time-separator {
  color: var(--text-muted);
  margin: 0 2px;
}

.seek-bar-container {
  flex: 1;
  padding: var(--space-sm) 0;
}

.seek-bar {
  width: 100%;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--gray-700);
  border-radius: var(--radius-full);
  cursor: pointer;
}

.seek-bar::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  background: var(--cyan-400);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 12px rgba(8, 145, 178, 0.5);
  transition: all var(--transition-fast);
}

.seek-bar::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 20px rgba(8, 145, 178, 0.6);
}

.seek-bar::-moz-range-thumb {
  width: 14px;
  height: 14px;
  background: var(--cyan-400);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 12px rgba(8, 145, 178, 0.5);
  transition: all var(--transition-fast);
}

.seek-bar::-moz-range-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 20px rgba(8, 145, 178, 0.6);
}

/* Audio Metadata */
.audio-metadata {
  padding: var(--space-md);
  overflow: hidden;
}

.metadata-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-md);
}

.metadata-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  overflow: hidden;
}

.metadata-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.metadata-value {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Music Analysis */
.music-analysis {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  padding-top: var(--space-md);
  border-top: 1px solid var(--glass-border);
}

.analysis-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm);
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  min-width: 0;
  overflow: hidden;
}

.analysis-icon {
  width: 36px;
  height: 36px;
  min-width: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-cyan-dark);
  border-radius: var(--radius-sm);
  color: var(--color-bg-dark);
}

.analysis-icon svg {
  width: 18px;
  height: 18px;
}

.analysis-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  overflow: hidden;
}

.analysis-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.analysis-value {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  color: var(--cyan-400);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Download Section */
.download-section {
  margin-bottom: var(--space-lg);
}

.download-title {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.format-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

.format-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md) var(--space-sm);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.format-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-cyan-dark);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.format-btn:hover::before {
  opacity: 0.08;
}

/* Glass sheen that sweeps across on hover (transition, not a keyframe
   loop, so the global reduced-motion rule collapses it automatically) */
.format-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg,
    transparent 40%,
    rgba(255, 255, 255, 0.06) 50%,
    transparent 60%);
  background-size: 250% 100%;
  background-position: 200% 0;
  transition: background-position 600ms ease;
  pointer-events: none;
}

.format-btn:hover::after {
  background-position: -50% 0;
}

.format-btn:hover {
  border-color: var(--cyan-400);
  transform: translateY(-2px);
}

.format-btn:active {
  transform: translateY(0);
}

.format-btn.selected {
  border-color: var(--accent-electric);
  box-shadow: 0 0 20px var(--accent-electric-glow);
}

.format-btn.selected::before {
  background: linear-gradient(135deg, var(--accent-electric-glow) 0%, transparent 100%);
  opacity: 0.2;
}

.format-icon {
  position: relative;
  z-index: 1;
  color: var(--cyan-400);
}

.format-btn.selected .format-icon {
  color: var(--accent-electric);
}

.format-name {
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.05em;
}

.format-desc {
  position: relative;
  z-index: 1;
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

/* Download Progress */
.download-progress {
  padding: var(--space-md);
}

.download-progress-content {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.download-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--gray-700);
  border-top-color: var(--cyan-400);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.download-status {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.download-bar {
  height: 4px;
  background: var(--gray-800);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.download-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--gradient-cyan-dark);
  border-radius: var(--radius-full);
  transition: width var(--transition-fast);
}

/* ============================================
   VASEY/AI Universal Branded Footer
   Enhancements: A (Glow Pulse Divider) + C (Logo Hover Glow)
   ============================================ */
.app-footer {
  margin-top: 56px;
  padding-top: 32px;
  padding-bottom: calc(var(--safe-bottom) + var(--space-lg));
  border-top: 1px solid var(--border-subtle);
  text-align: center;
  animation: fadeInUp 0.8s ease-out 0.8s both;
}
.footer-divider {
  width: 48px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-deep), transparent);
  margin: 0 auto 28px;
  animation: footerDividerPulse 3s ease-in-out infinite;
}
@keyframes footerDividerPulse {
  0%, 100% { opacity: 0.6; width: 48px; }
  50%      { opacity: 1;   width: 72px; }
}
.footer-brand-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 20px;
}
.footer-logo {
  opacity: 0.45;
  transition: opacity 0.3s ease, filter 0.3s ease;
  display: inline-flex;
  align-items: center;
}
.footer-logo:hover {
  opacity: 0.85;
  filter: drop-shadow(0 0 6px var(--accent-glow-strong));
}
.footer-logo-vm {
  width: 36px;
  height: 31px;
}
.footer-logo-vai {
  width: 48px;
  height: 48px;
}
.footer-logo-sep {
  width: 1px;
  height: 24px;
  background: var(--border-glow);
}
.footer-suite-tag {
  font-family: 'Reddit Sans', sans-serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.footer-app-tag {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  color: var(--text-muted);
  opacity: 0.7;
  margin-bottom: 16px;
}
.footer-copyright {
  font-family: 'Reddit Sans', sans-serif;
  font-size: 11px;
  color: var(--text-muted);
  opacity: 0.5;
  line-height: 1.6;
  padding-bottom: 8px;
}
.footer-copyright a {
  color: var(--accent-dim);
  text-decoration: none;
  transition: color 0.2s ease;
}
.footer-copyright a:hover {
  color: var(--accent-primary);
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================
   SETTINGS PANEL
   ============================================ */
.settings-panel {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.settings-panel.hidden {
  display: none;
}

.settings-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.settings-content {
  position: relative;
  width: 100%;
  max-width: 600px;
  max-height: 80vh;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

.settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--glass-border);
}

.settings-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.08em;
  color: var(--text-primary);
}

.settings-close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-tertiary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.settings-close:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
}

.settings-body {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.setting-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md);
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
}

.setting-label {
  font-size: 0.9375rem;
  color: var(--text-primary);
}

/* Toggle Switch */
.toggle {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 28px;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background: var(--gray-700);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  height: 22px;
  width: 22px;
  left: 3px;
  bottom: 3px;
  background: var(--text-secondary);
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.toggle input:checked + .toggle-slider {
  background: var(--cyan-400);
}

.toggle input:checked + .toggle-slider::before {
  transform: translateX(20px);
  background: var(--text-primary);
}

.settings-footer {
  padding: var(--space-md) var(--space-lg) calc(var(--safe-bottom) + var(--space-lg));
  text-align: center;
  border-top: 1px solid var(--glass-border);
}

.version-text {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ============================================
   FILE NAMING DIALOG
   ============================================ */
.name-dialog {
  position: fixed;
  inset: 0;
  /* Above the settings sheet (300), below toasts (400) */
  z-index: 350;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.name-dialog.hidden {
  display: none;
}

.name-dialog-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.name-dialog-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  padding: var(--space-lg);
  border-radius: var(--radius-xl);
  animation: fadeSlideIn 0.25s ease;
}

.name-dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.name-dialog-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  letter-spacing: 0.08em;
  color: var(--text-primary);
}

.name-dialog-format {
  font-family: var(--font-display);
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  color: var(--cyan-400);
  padding: 2px 10px;
  border: 1px solid rgba(50, 180, 196, 0.35);
  border-radius: var(--radius-full);
  background: rgba(50, 180, 196, 0.08);
  white-space: nowrap;
}

.name-dialog-input {
  margin-bottom: var(--space-sm);
}

.name-dialog-preview {
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-secondary);
  word-break: break-all;
  padding: var(--space-xs) var(--space-sm) var(--space-md);
  min-height: 2.2em;
}

.name-dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-sm);
}

.dialog-btn {
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.dialog-btn-secondary {
  background: transparent;
  border-color: var(--glass-border);
  color: var(--text-secondary);
}

.dialog-btn-secondary:hover {
  border-color: var(--glass-border-hover);
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.dialog-btn-primary {
  background: linear-gradient(135deg, var(--cyan-400) 0%, var(--teal-600) 100%);
  border: none;
  color: var(--color-bg-dark);
  /* 3D button effect (matches .url-submit-btn) */
  box-shadow:
    0 2px 8px rgba(8, 145, 178, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    inset 0 -1px 0 rgba(0, 0, 0, 0.1);
}

.dialog-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow:
    0 4px 16px rgba(8, 145, 178, 0.5),
    0 0 24px rgba(8, 145, 178, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.dialog-btn-primary:active {
  transform: translateY(1px);
  box-shadow:
    0 1px 4px rgba(8, 145, 178, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */
.toast-container {
  position: fixed;
  bottom: calc(var(--safe-bottom) + 80px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 400;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  width: calc(100% - var(--space-lg) * 2 - var(--safe-left) - var(--safe-right));
  max-width: 400px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--gray-800);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  animation: toastIn 0.3s ease;
  pointer-events: auto;
  max-width: 100%;
  overflow: hidden;
}

.toast.toast-out {
  animation: toastOut 0.3s ease forwards;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes toastOut {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-20px);
  }
}

.toast-icon {
  flex-shrink: 0;
}

.toast-icon.success {
  color: var(--cyan-400);
}

.toast-icon.error {
  color: #f87171;
}

.toast-icon.info {
  color: var(--cyan-400);
}

.toast-message {
  flex: 1;
  font-size: 0.875rem;
  color: var(--text-primary);
  word-break: break-word;
  overflow-wrap: break-word;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  max-height: 3.9em;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.hidden {
  display: none !important;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */
@media (min-width: 480px) {
  .format-options {
    grid-template-columns: repeat(4, 1fr);
  }

  .format-btn {
    padding: var(--space-lg) var(--space-md);
  }

  .music-analysis {
    gap: var(--space-md);
  }

  .analysis-item {
    gap: var(--space-md);
    padding: var(--space-md);
  }

  .analysis-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
  }

  .analysis-icon svg {
    width: 24px;
    height: 24px;
  }

  .analysis-value {
    font-size: 1.25rem;
  }

  .audio-player {
    gap: var(--space-md);
    padding: var(--space-md);
  }

  .time-display {
    font-size: 0.8125rem;
  }
}

@media (min-width: 768px) {
  /* Hero header scales up on larger screens */
  .hero-header {
    padding: calc(var(--safe-top) + 64px) 32px 56px;
  }

  .brand-tagline {
    font-size: 0.85rem;
    letter-spacing: 0.4em;
    margin-bottom: 36px;
  }

  .app-logo {
    width: 72px;
    height: 72px;
  }

  .app-title {
    font-size: 2.75rem;
  }

  .version-badge {
    padding: 6px 14px;
    font-size: 0.8rem;
  }

  .app-subtitle {
    font-size: 1.25rem;
  }

  .brand-row {
    gap: 16px;
    margin-bottom: 20px;
  }

  .section-title {
    font-size: 2rem;
  }

  .drop-zone {
    padding: var(--space-2xl) var(--space-xl);
  }
}

/* Keyboard focus visibility */
.drop-zone:focus-visible,
.format-btn:focus-visible,
.play-btn:focus-visible,
.url-submit-btn:focus-visible,
.new-extract-btn:focus-visible,
.cancel-btn:focus-visible,
.settings-close:focus-visible,
.floating-menu-btn:focus-visible,
.dialog-btn:focus-visible,
.seek-bar:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 3px;
}

/* Format buttons locked while a conversion runs */
.format-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

/* Dark mode forced for consistency */
@media (prefers-color-scheme: light) {
  :root {
    color-scheme: dark;
  }
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Print styles */
@media print {
  .hero-header,
  .floating-menu-btn,
  .app-footer,
  .upload-section,
  .processing-section,
  .download-section,
  .settings-panel {
    display: none !important;
  }
}