/* ═══════════════════════════════════════════════════════
   Share Box — Glassmorphic Design · Day/Night Theme
   ═══════════════════════════════════════════════════════ */

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

/* ── Day theme (default) ─────────────────────────────── */
:root {
  --bg-primary: #f0f2f8;
  --bg-secondary: #e6e8f0;
  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  --text-primary: #1a1a2e;
  --text-secondary: #5a5a7a;
  --text-muted: #8a8aaa;
  --accent: #6c5ce7;
  --accent-hover: #7c6cf7;
  --accent-glow: rgba(108, 92, 231, 0.25);
  --danger: #e74c3c;
  --success: #27ae60;
  --warning: #f39c12;
  --info: #3498db;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 8px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --toggle-bg: #e0e0e8;
  --toggle-icon: '🌙';
  --input-bg: rgba(255, 255, 255, 0.5);
  --input-border: rgba(0, 0, 0, 0.1);
  --input-focus: var(--accent);
  --item-bg: rgba(0, 0, 0, 0.02);
  --item-border: rgba(0, 0, 0, 0.06);
  --item-hover: rgba(0, 0, 0, 0.04);
  --share-link-bg: rgba(108, 92, 231, 0.08);
  --gradient-1: rgba(108, 92, 231, 0.06);
  --gradient-2: rgba(52, 152, 219, 0.04);
  --gradient-3: rgba(231, 76, 60, 0.03);
  --player-bg: rgba(0, 0, 0, 0.04);
  --progress-bg: rgba(0, 0, 0, 0.08);
  --btn-body: linear-gradient(180deg, #f8f8fc, #eaeaf2);
  --btn-text: #1a1a2e;
  --btn-rim-1: hsl(0, 0%, 92%);
  --btn-rim-2: hsl(0, 0%, 50%);
  --btn-rim-3: hsl(0, 0%, 78%);
  --btn-rim-4: hsl(0, 0%, 38%);
  --btn-rim-5: hsl(0, 0%, 88%);
  --btn-shadow: 0 4px 15px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.04);
  --btn-shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.10), 0 2px 6px rgba(0, 0, 0, 0.06);
  --btn-highlight: linear-gradient(180deg, rgba(255, 255, 255, 0.5) 0%, transparent 40%);
}

/* ── Night theme ─────────────────────────────────────── */
body.dark-theme {
  --bg-primary: #0a0a12;
  --bg-secondary: #12121e;
  --glass-bg: rgba(255, 255, 255, 0.04);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --text-primary: #f0f0f5;
  --text-secondary: #9898b8;
  --text-muted: #686888;
  --accent: #6c5ce7;
  --accent-hover: #7c6cf7;
  --accent-glow: rgba(108, 92, 231, 0.3);
  --danger: #ff4757;
  --success: #2ed573;
  --warning: #ffa502;
  --info: #3498db;
  --toggle-bg: #2a2a3a;
  --toggle-icon: '☀️';
  --input-bg: rgba(255, 255, 255, 0.04);
  --input-border: rgba(255, 255, 255, 0.1);
  --input-focus: var(--accent);
  --item-bg: rgba(255, 255, 255, 0.03);
  --item-border: rgba(255, 255, 255, 0.06);
  --item-hover: rgba(255, 255, 255, 0.05);
  --share-link-bg: rgba(108, 92, 231, 0.15);
  --gradient-1: rgba(108, 92, 231, 0.08);
  --gradient-2: rgba(0, 206, 201, 0.06);
  --gradient-3: rgba(255, 107, 107, 0.04);
  --player-bg: rgba(255, 255, 255, 0.04);
  --progress-bg: rgba(255, 255, 255, 0.06);
  --btn-body: linear-gradient(180deg, #2e2e40, #1c1c2a);
  --btn-text: #ffffff;
  --btn-rim-1: hsl(0, 0%, 72%);
  --btn-rim-2: hsl(0, 0%, 35%);
  --btn-rim-3: hsl(0, 0%, 58%);
  --btn-rim-4: hsl(0, 0%, 28%);
  --btn-rim-5: hsl(0, 0%, 68%);
  --btn-shadow: 0 4px 15px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.15);
  --btn-shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.35), 0 2px 6px rgba(0, 0, 0, 0.2);
  --btn-highlight: linear-gradient(180deg, rgba(255, 255, 255, 0.12) 0%, transparent 40%);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
  -webkit-text-size-adjust: 100%;
}

/* Subtle background gradient */
body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background:
    radial-gradient(ellipse at 20% 50%, var(--gradient-1) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, var(--gradient-2) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, var(--gradient-3) 0%, transparent 50%);
  z-index: -1;
  animation: bgShift 20s ease-in-out infinite alternate;
  transition: background var(--transition);
}

@keyframes bgShift {
  0%   { transform: translate(0, 0) rotate(0deg); }
  100% { transform: translate(-2%, -2%) rotate(3deg); }
}

/* ── Theme Toggle ────────────────────────────────────── */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  background: var(--toggle-bg);
  cursor: pointer;
  font-size: 1.1rem;
  transition: var(--transition);
  outline: none;
  flex-shrink: 0;
}

.theme-toggle:hover {
  transform: scale(1.1);
  box-shadow: 0 0 12px var(--accent-glow);
}

.theme-toggle:active {
  transform: scale(0.95);
}

.theme-toggle-fixed {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 100;
}

/* ── Glassmorphic Card ───────────────────────────────── */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--glass-shadow);
  transition: background var(--transition), border var(--transition), box-shadow var(--transition);
}

.glass-card {
  padding: 2rem;
  width: 100%;
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--glass-shadow);
}

/* ── Premium pill button (iridescent metal rim) ───────── */

.btn-iridescent {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--btn-text);
  background: var(--btn-body);
  border: none;
  border-radius: 50px;
  cursor: pointer;
  box-shadow: var(--btn-shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  text-decoration: none;
  overflow: hidden;
  z-index: 1;
  touch-action: manipulation;
}

/* Animated metallic iridescent rim (2px border) */
.btn-iridescent::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50px;
  padding: 2px;
  background: conic-gradient(
    from var(--angle, 0deg),
    var(--btn-rim-1),
    var(--btn-rim-2),
    var(--btn-rim-3),
    var(--btn-rim-4),
    var(--btn-rim-5),
    var(--btn-rim-1)
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: iridescent-rotate 6s linear infinite;
  pointer-events: none;
  z-index: -1;
}

/* Subtle top highlight for convex/glossy feel */
.btn-iridescent::after {
  content: '';
  position: absolute;
  top: 0;
  left: 2px;
  right: 2px;
  height: 55%;
  border-radius: 50px 50px 0 0;
  background: var(--btn-highlight);
  pointer-events: none;
  z-index: 0;
}

.btn-iridescent:hover {
  transform: translateY(-2px);
  box-shadow: var(--btn-shadow-hover);
}

.btn-iridescent:active {
  transform: translateY(0);
  box-shadow: var(--btn-shadow);
}

.btn-iridescent:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.btn-iridescent--danger::before {
  --btn-rim-1: hsl(0, 50%, 78%);
  --btn-rim-2: hsl(0, 40%, 45%);
  --btn-rim-3: hsl(0, 45%, 65%);
  --btn-rim-4: hsl(0, 35%, 35%);
  --btn-rim-5: hsl(0, 50%, 75%);
}

.btn-iridescent--small {
  padding: 0.5rem 1.25rem;
  font-size: 0.85rem;
}

.btn-iridescent--full {
  width: 100%;
}

/* ── Secondary button ────────────────────────────────── */
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  background: var(--item-bg);
  border: 1px solid var(--item-border);
  border-radius: 12px;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-secondary:hover {
  background: var(--item-hover);
  border-color: var(--accent);
  color: var(--accent);
}

.btn-secondary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ── Inputs ──────────────────────────────────────────── */
.input-glass {
  width: 100%;
  padding: 0.85rem 1rem;
  font-size: 0.95rem;
  color: var(--text-primary);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: var(--transition);
  touch-action: manipulation;
}

.input-glass:focus {
  border-color: var(--input-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background: var(--glass-bg);
}

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

.input-glass--file {
  padding: 0.6rem;
  cursor: pointer;
}

.input-glass--file::file-selector-button {
  padding: 0.4rem 1rem;
  margin-right: 0.75rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  background: rgba(108, 92, 231, 0.3);
  border: 1px solid rgba(108, 92, 231, 0.4);
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
}

.input-glass--file::file-selector-button:hover {
  background: rgba(108, 92, 231, 0.5);
}

/* ── Typography ──────────────────────────────────────── */
h1 {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

/* ── Layout ──────────────────────────────────────────── */
.page-center {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
}

.page-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
}

/* ── Login box ───────────────────────────────────────── */
.login-box {
  width: 100%;
  max-width: 420px;
  padding: 2.5rem;
}

.login-box .logo {
  text-align: center;
  margin-bottom: 2rem;
}

.login-box .logo-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.login-box h1 {
  text-align: center;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.form-actions {
  margin-top: 1.5rem;
}

.form-actions .btn-iridescent {
  width: 100%;
}

.form-error {
  color: var(--danger);
  font-size: 0.875rem;
  margin-top: 1rem;
  text-align: center;
  min-height: 1.25rem;
}

/* ── Dashboard ───────────────────────────────────────── */
.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.header-left h1 { margin-bottom: 0; }
.header-left .subtitle { margin-bottom: 0; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: background var(--transition), border var(--transition);
}

.user-badge .username {
  color: var(--text-primary);
  font-weight: 600;
}

.upload-section {
  margin-bottom: 2rem;
}

.upload-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.upload-form .form-group--full {
  grid-column: 1 / -1;
}

.upload-form .form-actions {
  grid-column: 1 / -1;
  margin-top: 0;
}

/* ── Share list ──────────────────────────────────────── */
.shares-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.share-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: var(--item-bg);
  border: 1px solid var(--item-border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  gap: 1rem;
  flex-wrap: wrap;
}

.share-item:hover {
  background: var(--item-hover);
  border-color: var(--glass-border);
}

.share-item--expired {
  opacity: 0.6;
}

.share-info {
  flex: 1;
  min-width: 200px;
}

.share-name {
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  word-break: break-all;
}

.share-name-emoji {
  margin-right: 0.3rem;
}

.share-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.share-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.share-actions {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

.share-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--accent);
  text-decoration: none;
  padding: 0.35rem 0.75rem;
  background: transparent;
  border: 1px solid var(--accent);
  border-radius: 8px;
  transition: var(--transition);
  cursor: pointer;
}

.share-link:hover {
  background: var(--share-link-bg);
  transform: translateY(-1px);
}

.share-link--danger {
  border-color: rgba(231, 76, 60, 0.3);
  color: var(--danger);
}

.share-link--danger:hover {
  background: rgba(231, 76, 60, 0.1);
}

.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}

.empty-state .empty-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

/* ── Badges ──────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 50px;
}

.badge--active { background: rgba(39, 174, 96, 0.15); color: var(--success); }
.badge--inactive { background: rgba(231, 76, 60, 0.15); color: var(--danger); }
.badge--expired { background: rgba(243, 156, 18, 0.15); color: var(--warning); }
.badge--admin { background: rgba(108, 92, 231, 0.2); color: var(--accent); }

/* ── Public share page ───────────────────────────────── */
.share-page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.share-page-wrapper .page-center {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.download-box {
  width: 100%;
  max-width: 520px;
  padding: 2.5rem;
  text-align: center;
}

.download-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  line-height: 1;
}

.download-filename {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  word-break: break-all;
}

.download-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.download-password-form .input-glass {
  margin-bottom: 0.75rem;
}

.download-btn .btn-iridescent {
  width: 100%;
}

.download-btn {
  margin-top: 0.75rem;
}

.download-error {
  font-size: 0.875rem;
  margin-top: 0.75rem;
  min-height: 1.25rem;
  font-weight: 500;
}

.download-error--error { color: var(--danger); }
.download-error--info { color: var(--success); }

/* Success state after password */
.download-success {
  animation: fadeSlideUp 0.4s ease;
}

.download-success-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: rgba(39, 174, 96, 0.1);
  border: 1px solid rgba(39, 174, 96, 0.2);
  border-radius: 50px;
  color: var(--success);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.download-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.download-actions .btn-iridescent,
.download-actions .btn-secondary {
  width: 100%;
}

/* ── Media player (audio/video) ──────────────────────── */
.media-player {
  margin-top: 1rem;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--player-bg);
  border: 1px solid var(--item-border);
}

.media-player audio,
.media-player video {
  width: 100%;
  display: block;
  border-radius: var(--radius-sm);
}

.media-player audio {
  height: 3.5rem;
  padding: 0.25rem 0;
}

.media-player video {
  max-height: 400px;
  object-fit: contain;
  background: #000;
}

/* Custom audio styling */
.media-player audio::-webkit-media-controls-panel {
  background: var(--player-bg);
}

.media-player audio::-webkit-media-controls-current-time-display,
.media-player audio::-webkit-media-controls-time-remaining-display {
  color: var(--text-secondary);
}

.media-player audio::-webkit-media-controls-timeline {
  background: var(--progress-bg);
}

/* Loading spinner for share page */
.initial-loader {
  text-align: center;
  padding: 3rem;
}

.initial-loader .spinner {
  width: 2.5rem;
  height: 2.5rem;
  border-width: 3px;
  margin-bottom: 1rem;
}

.initial-loader p {
  color: var(--text-muted);
}

/* ── Admin table ─────────────────────────────────────── */
.admin-table-wrap {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.admin-table th {
  text-align: left;
  padding: 0.75rem 1rem;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--item-border);
}

.admin-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--item-border);
  color: var(--text-secondary);
}

.admin-table tr:hover td {
  background: var(--item-hover);
}

.admin-create-form {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 0.75rem;
  align-items: end;
}

/* ── Stats ───────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  text-align: center;
  padding: 1.25rem;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* ── Utility ─────────────────────────────────────────── */
.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.flex { display: flex; }
.gap-1 { gap: 1rem; }
.gap-05 { gap: 0.5rem; }
.fade-in {
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

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

/* ── Toast / notification ────────────────────────────── */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 1rem 1.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: #fff;
  opacity: 0;
  transform: translateY(1rem);
  transition: var(--transition);
  z-index: 1000;
  pointer-events: none;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

.toast--visible {
  opacity: 1;
  transform: translateY(0);
}

.toast--success { background: rgba(39, 174, 96, 0.9); }
.toast--error { background: rgba(231, 76, 60, 0.9); }
.toast--info { background: rgba(108, 92, 231, 0.9); }

/* ── Loading spinner ─────────────────────────────────── */
.spinner {
  display: inline-block;
  width: 1.5rem;
  height: 1.5rem;
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: middle;
}

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

/* ── Progress bar (upload) ───────────────────────────── */
.upload-progress {
  margin-top: 1rem;
  display: none;
}

.upload-progress--visible {
  display: block;
  animation: fadeIn 0.3s ease;
}

.progress-bar {
  height: 4px;
  background: var(--progress-bg);
  border-radius: 2px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), #00cec9);
  border-radius: 2px;
  transition: width 0.3s ease;
}

/* ── Iridescent border on cards ──────────────────────── */
@property --angle {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}

@keyframes iridescent-rotate {
  to { --angle: 360deg; }
}

.card-iridescent-border {
  position: relative;
  isolation: isolate;
}

.card-iridescent-border::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  padding: 1px;
  background: conic-gradient(
    from var(--angle, 0deg),
    transparent 0deg,
    rgba(108, 92, 231, 0.3) 60deg,
    rgba(0, 206, 201, 0.3) 120deg,
    transparent 180deg,
    rgba(255, 107, 107, 0.2) 240deg,
    rgba(108, 92, 231, 0.3) 300deg,
    transparent 360deg
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: iridescent-rotate 8s linear infinite;
  pointer-events: none;
}

/* ── Danger button variant ─────────────────────────── */
.btn-iridescent--danger {
  background: linear-gradient(135deg, #e74c3c, #c0392b) !important;
  box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
}
.btn-iridescent--danger:hover {
  box-shadow: 0 6px 20px rgba(231, 76, 60, 0.4);
  transform: translateY(-1px);
}

/* ── Confirm modal ──────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  animation: fadeIn 0.2s ease;
}

.modal-box {
  width: 90%;
  max-width: 400px;
  padding: 2rem;
  text-align: center;
  border-radius: var(--radius);
}

.modal-box .modal-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  line-height: 1;
}

.modal-box .modal-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.modal-box .modal-message {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.modal-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
}

.modal-actions .btn-secondary {
  flex: 1;
}

.modal-actions .btn-iridescent--danger {
  flex: 1;
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 768px) {
  body { overflow-x: hidden; }
  .page-container { overflow-x: hidden; overflow-wrap: break-word; }
  input, select, textarea, .input-glass {
    font-size: 16px !important;
  }
}

@media (max-width: 640px) {
  .upload-form {
    grid-template-columns: 1fr;
  }
  .login-box, .download-box {
    padding: 1.5rem;
  }
  .dashboard-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .header-actions {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  .share-item {
    flex-direction: column;
    align-items: flex-start;
  }
  .share-actions {
    align-self: stretch;
    justify-content: flex-start;
  }
  .share-name {
    word-break: break-word;
  }
  .share-meta {
    gap: 0.5rem;
  }
  .admin-create-form {
    grid-template-columns: 1fr;
  }
  .card-iridescent-border::before {
    animation-duration: 12s;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .media-player video {
    max-height: 250px;
  }
  .toast {
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    text-align: center;
  }
}