/* ============================================================
   SafeTransfer – Glassmorphism Design System V5
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  --bg: #070b16;
  --bg-secondary: #0b1020;
  --text: #eaf0ff;
  --text-secondary: #a9b4d6;
  --muted: #7a86a8;

  --accent: #7c5cff;
  --accent-glow: rgba(124, 92, 255, 0.35);
  --accent2: #22c55e;
  --accent2-glow: rgba(34, 197, 94, 0.22);
  --accent3: #3b82f6;
  --accent4: #f59e0b;

  --danger: #ef4444;
  --danger-soft: rgba(239, 68, 68, 0.16);
  --warning: #f59e0b;
  --success: #22c55e;

  --glass-bg: rgba(255, 255, 255, 0.04);
  --glass-bg-hover: rgba(255, 255, 255, 0.07);
  --glass-border: rgba(255, 255, 255, 0.10);
  --glass-border-hover: rgba(255, 255, 255, 0.18);
  --glass-blur: 16px;
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --glass-shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.4);

  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --radius-full: 999px;

  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg: #f0f2f5;
  --bg-secondary: #e5e7eb;
  --text: #111827;
  --text-secondary: #4b5563;
  --muted: #6b7280;
  --glass-bg: rgba(255, 255, 255, 0.65);
  --glass-bg-hover: rgba(255, 255, 255, 0.80);
  --glass-border: rgba(0, 0, 0, 0.08);
  --glass-border-hover: rgba(0, 0, 0, 0.15);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  --glass-shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
  --accent-glow: rgba(124, 92, 255, 0.15);
  --accent2-glow: rgba(34, 197, 94, 0.10);
}

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

body {
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background var(--transition-normal), color var(--transition-normal);
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(80vw 60vh at 20% -10%, var(--accent-glow), transparent 55%),
    radial-gradient(60vw 50vh at 110% 10%, var(--accent2-glow), transparent 50%),
    radial-gradient(50vw 45vh at 40% 120%, rgba(59, 130, 246, 0.10), transparent 55%);
  pointer-events: none;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

/* --- Glass Components --- */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--glass-shadow);
  padding: 20px;
  transition: all var(--transition-normal);
}

.glass-card:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
}

.glass-card-static {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--glass-shadow);
  padding: 20px;
}

.glass-input {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  outline: none;
  background: rgba(0, 0, 0, 0.22);
  color: var(--text);
  font-size: 14px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

[data-theme="light"] .glass-input {
  background: rgba(255, 255, 255, 0.6);
}

.glass-input::placeholder { color: var(--muted); }
.glass-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(124, 92, 255, 0.15);
}

select.glass-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23a9b4d6' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

/* --- Buttons --- */
.glass-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  cursor: pointer;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent), rgba(124, 92, 255, 0.6));
  color: white;
  font-weight: 600;
  font-size: 14px;
  width: 100%;
  box-shadow: 0 8px 24px rgba(124, 92, 255, 0.25);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.glass-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 12px 32px rgba(124, 92, 255, 0.35);
}

.glass-btn:active:not(:disabled) { transform: translateY(0); }
.glass-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.glass-btn-secondary {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: none;
  color: var(--text);
}

.glass-btn-secondary:hover:not(:disabled) {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  box-shadow: none;
  transform: translateY(-1px);
}

.glass-btn-green {
  background: linear-gradient(135deg, var(--accent2), rgba(34, 197, 94, 0.6));
  box-shadow: 0 8px 24px rgba(34, 197, 94, 0.2);
}

.glass-btn-green:hover:not(:disabled) {
  box-shadow: 0 12px 32px rgba(34, 197, 94, 0.3);
}

.glass-btn-danger {
  background: var(--danger-soft);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #ffa0a0;
  box-shadow: none;
}

.glass-btn-danger:hover:not(:disabled) {
  background: rgba(239, 68, 68, 0.25);
  box-shadow: none;
}

.glass-btn-sm {
  padding: 8px 14px;
  font-size: 12px;
  width: auto;
  border-radius: var(--radius-sm);
}

/* --- Navigation --- */
.glass-nav {
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  position: sticky;
  top: 12px;
  z-index: 100;
}

.nav-brand {
  display: flex;
  gap: 12px;
  align-items: center;
  cursor: pointer;
}

.nav-logo {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), rgba(124, 92, 255, 0.2));
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 6px 20px rgba(124, 92, 255, 0.2);
  color: white;
}

.nav-title {
  display: flex;
  flex-direction: column;
}

.nav-title b { font-size: 15px; letter-spacing: 0.2px; }
.nav-title span { font-size: 11px; color: var(--text-secondary); }

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

.nav-pill {
  font-size: 11px;
  color: var(--text-secondary);
  border: 1px solid var(--glass-border);
  padding: 6px 12px;
  border-radius: var(--radius-full);
  background: var(--glass-bg);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.nav-pill:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
}

.nav-logout {
  color: #f87171;
  border-color: rgba(248, 113, 113, 0.3);
}
.nav-logout:hover {
  background: rgba(248, 113, 113, 0.1);
  border-color: rgba(248, 113, 113, 0.5);
}

.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  color: var(--text-secondary);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 16px;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--glass-bg-hover);
  color: var(--text);
}

/* --- Modal --- */
.glass-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.glass-modal-overlay.active { opacity: 1; visibility: visible; }

.glass-modal {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: var(--glass-shadow-lg);
  padding: 24px;
  max-width: 800px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  transform: scale(0.95) translateY(10px);
  transition: transform var(--transition-normal);
}

[data-theme="light"] .glass-modal { background: rgba(255, 255, 255, 0.9); }
.glass-modal-overlay.active .glass-modal { transform: scale(1) translateY(0); }

.glass-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.glass-modal-close {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  color: var(--text-secondary);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 18px;
  transition: all var(--transition-fast);
}

.glass-modal-close:hover { background: var(--danger-soft); color: var(--danger); }

/* --- Layout --- */
.app-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 12px 16px 40px;
}

.view {
  display: none;
  animation: viewFadeIn 0.35s ease;
}

.view.active { display: block; }

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

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 16px;
}

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 980px) {
  .grid-2-wide { grid-template-columns: 1.2fr 0.8fr; }
}

/* --- Typography --- */
h2 { font-size: 17px; font-weight: 600; margin: 0 0 8px; }
h3 { font-size: 14px; font-weight: 600; margin: 0 0 6px; }
.sub { color: var(--text-secondary); font-size: 13px; line-height: 1.5; }
.hint { font-size: 12px; color: var(--muted); margin-top: 8px; }

.section-heading {
  font-size: 20px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 24px;
  color: var(--text);
}

.section-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 7px;
  border-radius: var(--radius-full);
  background: rgba(124, 92, 255, 0.2);
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
}

/* --- Forms --- */
.form-group { margin-bottom: 12px; }
.form-row { display: flex; gap: 12px; flex-wrap: wrap; }
.form-field { flex: 1; min-width: 160px; }

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  text-align: center;
  padding: 80px 20px 60px;
  position: relative;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(124, 92, 255, 0.15), transparent 70%);
  pointer-events: none;
  animation: heroGlow 6s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  from { opacity: 0.5; transform: translateX(-50%) scale(0.9); }
  to { opacity: 1; transform: translateX(-50%) scale(1.1); }
}

.hero-badge {
  display: inline-block;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  background: rgba(124, 92, 255, 0.15);
  border: 1px solid rgba(124, 92, 255, 0.3);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
  position: relative;
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  position: relative;
  letter-spacing: -0.5px;
}

.hero-gradient {
  background: linear-gradient(135deg, var(--accent), var(--accent3), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 500px;
  margin: 0 auto 28px;
  line-height: 1.6;
  position: relative;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
}

.hero-btn-primary,
.hero-btn-secondary {
  width: auto;
  padding: 14px 28px;
  font-size: 15px;
}

/* ============================================================
   FEATURES SECTION
   ============================================================ */
.features-section {
  margin-top: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 14px;
}

.feature-card {
  padding: 24px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  text-align: center;
  transition: all var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--glass-border-hover);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(124, 92, 255, 0.12);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.feature-icon-green { background: rgba(34, 197, 94, 0.12); color: var(--accent2); }
.feature-icon-blue { background: rgba(59, 130, 246, 0.12); color: var(--accent3); }
.feature-icon-orange { background: rgba(245, 158, 11, 0.12); color: var(--accent4); }

.feature-card h3 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 6px;
}

.feature-card p {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

/* ============================================================
   STEPS / HOW IT WORKS
   ============================================================ */
.steps-section {
  margin-top: 56px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.steps-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.step-card {
  flex: 1;
  min-width: 160px;
  max-width: 220px;
  text-align: center;
  padding: 24px 16px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  transition: all var(--transition-normal);
}

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

.step-number {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), rgba(124, 92, 255, 0.4));
  color: white;
  font-weight: 800;
  font-size: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.step-card h3 { font-size: 14px; margin-bottom: 6px; }
.step-card p { color: var(--muted); font-size: 12px; line-height: 1.5; }

.step-connector {
  color: var(--muted);
  opacity: 0.4;
  padding: 0 8px;
  flex-shrink: 0;
}

/* ============================================================
   MODE CARDS / LANDING GRID
   ============================================================ */
.modes-section {
  margin-top: 56px;
}

.landing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  max-width: 760px;
  margin: 0 auto;
}

.landing-card {
  padding: 28px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
}

.landing-card:hover {
  transform: translateY(-4px);
  background: rgba(124, 92, 255, 0.08);
  border-color: rgba(124, 92, 255, 0.25);
  box-shadow: 0 16px 48px rgba(124, 92, 255, 0.15);
}

.landing-card-icon {
  font-size: 36px;
  margin-bottom: 10px;
  color: var(--accent);
}

.landing-card h2 { font-size: 16px; margin-bottom: 4px; }
.landing-card small { color: var(--text-secondary); font-size: 13px; }

/* ============================================================
   HISTORY SECTION
   ============================================================ */
.history-section {
  margin-top: 40px;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.history-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.10);
  font-size: 13px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

[data-theme="light"] .history-item { background: rgba(0, 0, 0, 0.02); }
.history-item:hover { background: rgba(0, 0, 0, 0.18); }
[data-theme="light"] .history-item:hover { background: rgba(0, 0, 0, 0.06); }

/* ============================================================
   COUNTDOWN TIMER
   ============================================================ */
.countdown-box {
  margin-top: 12px;
  padding: 14px;
  border-radius: var(--radius-md);
  background: rgba(0, 0, 0, 0.15);
  border: 1px solid var(--glass-border);
  text-align: center;
}

[data-theme="light"] .countdown-box { background: rgba(0, 0, 0, 0.04); }

.countdown-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  margin-bottom: 6px;
  font-weight: 600;
}

.countdown-timer {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text);
  transition: color var(--transition-fast);
}

.countdown-timer.warning { color: var(--warning); }
.countdown-timer.danger { color: var(--danger); animation: countdownPulse 1s ease infinite; }
.countdown-timer.expired { color: var(--muted); }

@keyframes countdownPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ============================================================
   DOWNLOAD STATS
   ============================================================ */
.dl-count {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--muted);
  background: rgba(124, 92, 255, 0.08);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  margin-left: 6px;
}

.dl-count svg { width: 12px; height: 12px; }

/* ============================================================
   ADMIN STATS GRID
   ============================================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  margin-top: 0;
}

.stat-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  transition: all var(--transition-normal);
}

.stat-card:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
}

.stat-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon-purple { background: rgba(124, 92, 255, 0.12); color: var(--accent); }
.stat-icon-green { background: rgba(34, 197, 94, 0.12); color: var(--accent2); }
.stat-icon-blue { background: rgba(59, 130, 246, 0.12); color: var(--accent3); }
.stat-icon-orange { background: rgba(245, 158, 11, 0.12); color: var(--accent4); }

.stat-label {
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.stat-value {
  font-size: 16px;
  font-weight: 700;
  margin-top: 2px;
}

/* ============================================================
   FILE COMPONENTS
   ============================================================ */
.drop-zone {
  margin-top: 12px;
  border: 2px dashed var(--glass-border);
  background: rgba(0, 0, 0, 0.10);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  transition: all var(--transition-normal);
  cursor: pointer;
}

[data-theme="light"] .drop-zone { background: rgba(0, 0, 0, 0.02); }

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--accent);
  background: rgba(124, 92, 255, 0.05);
}

.drop-zone.drag-over { animation: dropPulse 1s ease infinite; }

@keyframes dropPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(124, 92, 255, 0.2); }
  50% { box-shadow: 0 0 0 12px rgba(124, 92, 255, 0); }
}

.drop-zone-icon {
  margin-bottom: 10px;
  color: var(--muted);
  opacity: 0.7;
}

.drop-zone strong { font-size: 14px; }
.drop-zone small { display: block; color: var(--muted); margin-top: 4px; font-size: 12px; }

.file-list {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.file-item {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.15);
  font-size: 13px;
  align-items: center;
  transition: all var(--transition-fast);
  animation: fileSlideIn 0.2s ease;
}

[data-theme="light"] .file-item { background: rgba(0, 0, 0, 0.03); }

@keyframes fileSlideIn {
  from { opacity: 0; transform: translateX(-8px); }
  to { opacity: 1; transform: translateX(0); }
}

.file-item:hover { background: rgba(0, 0, 0, 0.22); }
[data-theme="light"] .file-item:hover { background: rgba(0, 0, 0, 0.06); }

.file-item-info b { font-size: 13px; word-break: break-word; }

.file-item-meta {
  font-size: 11px;
  color: var(--muted);
  margin-top: 2px;
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.file-item-actions {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-shrink: 0;
}

/* --- Progress bar --- */
.progress-bar {
  width: 100%;
  height: 8px;
  border-radius: var(--radius-full);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.08);
  margin-top: 12px;
  position: relative;
}

[data-theme="light"] .progress-bar { background: rgba(0, 0, 0, 0.06); }

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: var(--radius-full);
  transition: width var(--transition-normal);
  position: relative;
}

.progress-bar-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  animation: progressShimmer 1.5s ease infinite;
}

@keyframes progressShimmer {
  from { transform: translateX(-100%); }
  to { transform: translateX(100%); }
}

.progress-text {
  position: absolute;
  right: 0;
  top: -20px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
}

/* --- Link box --- */
.link-box {
  margin-top: 12px;
  padding: 14px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.12);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

[data-theme="light"] .link-box { background: rgba(0, 0, 0, 0.03); }

.link-row { display: flex; gap: 8px; flex-wrap: wrap; }

.mono-text {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.18);
  word-break: break-all;
  flex: 1;
  min-width: 200px;
  color: var(--text);
}

[data-theme="light"] .mono-text { background: rgba(0, 0, 0, 0.04); }

.qr-box {
  width: 100%;
  max-width: 200px;
  aspect-ratio: 1/1;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 12px;
  margin: 0 auto;
}

.qr-box img { width: 100%; height: 100%; object-fit: contain; }

/* --- Toast --- */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  color: var(--text);
  font-size: 13px;
  box-shadow: var(--glass-shadow);
  animation: toastIn 0.3s ease, toastOut 0.3s ease 3.2s forwards;
  max-width: 360px;
}

.toast-success { border-color: rgba(34, 197, 94, 0.3); }
.toast-error { border-color: rgba(239, 68, 68, 0.3); }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(10px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

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

/* --- Preview modal content --- */
.preview-content {
  width: 100%;
  max-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-content img {
  max-width: 100%;
  max-height: 60vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.preview-content video,
.preview-content audio {
  max-width: 100%;
  border-radius: var(--radius-md);
}

.preview-content iframe {
  width: 100%;
  height: 60vh;
  border: none;
  border-radius: var(--radius-md);
}

.preview-content pre {
  width: 100%;
  max-height: 60vh;
  overflow: auto;
  padding: 16px;
  border-radius: var(--radius-md);
  background: rgba(0, 0, 0, 0.3);
  color: var(--text);
  font-size: 13px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  tab-size: 2;
}

.preview-content pre .line-number {
  display: inline-block;
  width: 40px;
  color: var(--muted);
  user-select: none;
  text-align: right;
  margin-right: 16px;
  opacity: 0.5;
}

/* ============================================================
   FOOTER
   ============================================================ */
.app-footer {
  text-align: center;
  padding: 24px 20px;
  color: var(--muted);
  font-size: 12px;
  border-top: 1px solid var(--glass-border);
  margin-top: 40px;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.footer-dot { opacity: 0.4; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .app-container { padding: 8px 10px 40px; }
  .glass-nav { padding: 10px 12px; gap: 8px; }
  .nav-title span { display: none; }
  .glass-card, .glass-card-static { padding: 14px; }
  .glass-modal { padding: 16px; margin: 10px; }
  .hero { padding: 50px 16px 40px; }
  .hero-title { font-size: 2.2rem; }
  .hero-sub { font-size: 0.95rem; }
  .features-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .step-connector { display: none; }
  .steps-grid { flex-direction: column; gap: 12px; }
  .step-card { max-width: 100%; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .form-row { flex-direction: column; }
  .link-row { flex-direction: column; }
  .nav-pill { display: none; }
  .file-item { flex-direction: column; align-items: flex-start; }
  .file-item-actions { width: 100%; justify-content: flex-end; }
  .hero-title { font-size: 1.8rem; }
  .hero-actions { flex-direction: column; }
  .hero-btn-primary, .hero-btn-secondary { width: 100%; }
  .features-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .countdown-timer { font-size: 22px; }
}

@media (pointer: coarse) {
  .glass-btn, .glass-btn-sm,
  .theme-toggle, .glass-modal-close,
  .nav-pill {
    min-height: 44px;
    min-width: 44px;
  }
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.15); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.25); }

[data-theme="light"] ::-webkit-scrollbar-thumb { background: rgba(0, 0, 0, 0.15); }
[data-theme="light"] ::-webkit-scrollbar-thumb:hover { background: rgba(0, 0, 0, 0.25); }

/* --- Animations --- */
.stagger > * {
  opacity: 0;
  animation: staggerFadeIn 0.35s ease forwards;
}

.stagger > *:nth-child(1) { animation-delay: 0.05s; }
.stagger > *:nth-child(2) { animation-delay: 0.12s; }
.stagger > *:nth-child(3) { animation-delay: 0.19s; }
.stagger > *:nth-child(4) { animation-delay: 0.26s; }
.stagger > *:nth-child(5) { animation-delay: 0.33s; }
.stagger > *:nth-child(n+6) { animation-delay: 0.40s; }

@keyframes staggerFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--glass-border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}

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

/* ============================================================
   PWA – iOS Safe Areas, Standalone Mode, Install-Banner
   ============================================================ */

/* --- iOS Safe Areas --- */
@supports (padding: env(safe-area-inset-top)) {
  .app-container {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
  .app-footer {
    padding-bottom: env(safe-area-inset-bottom);
  }
}

/* --- Standalone-Modus (installierte PWA) --- */
@media (display-mode: standalone) {
  html { overscroll-behavior: none; }
  body { -webkit-tap-highlight-color: transparent; }
  .app-container { padding-top: env(safe-area-inset-top); }
}

/* --- Offline-Badge --- */
.offline-badge {
  background: var(--danger-soft);
  color: var(--danger);
  font-size: 0.72rem;
  font-weight: 600;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* --- PWA Install-Banner --- */
.pwa-install-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  padding: 12px 16px;
  padding-bottom: calc(12px + env(safe-area-inset-bottom));
  background: rgba(11, 16, 32, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--glass-border);
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.pwa-install-banner.visible {
  transform: translateY(0);
}

.pwa-install-content {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 600px;
  margin: 0 auto;
}

.pwa-install-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, #7c5cff, #5b3cc4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.pwa-install-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.pwa-install-text strong {
  font-size: 0.88rem;
  color: var(--text);
}

.pwa-install-text span {
  font-size: 0.76rem;
  color: var(--text-secondary);
  line-height: 1.3;
}

.pwa-install-text span svg {
  color: var(--accent);
}

.pwa-install-btn {
  flex-shrink: 0;
}

.pwa-install-close {
  flex-shrink: 0;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 4px 8px;
  line-height: 1;
  transition: color 0.2s;
}

.pwa-install-close:hover {
  color: var(--text);
}

/* ============================================================
   V5.1.0: Sort Bar, Shortcuts, Download-Limit
   ============================================================ */
.sort-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.sort-label {
  font-size: 11px;
  color: var(--muted);
  margin-right: 2px;
}
.glass-btn-xs {
  padding: 3px 8px;
  font-size: 11px;
  border-radius: 6px;
  width: auto;
  min-width: auto;
}
.sort-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.shortcuts-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 8px 0;
}
.shortcut-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.shortcut-row:last-child {
  border-bottom: none;
}
.shortcut-row span {
  color: var(--muted);
  font-size: 13px;
}
kbd {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  padding: 2px 6px;
  font-family: monospace;
  font-size: 12px;
  color: var(--text);
}
[data-theme="light"] kbd {
  background: rgba(0, 0, 0, 0.06);
  border-color: rgba(0, 0, 0, 0.15);
}
[data-theme="light"] .shortcut-row {
  border-bottom-color: rgba(0, 0, 0, 0.06);
}
.dl-stats-box {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 0;
  font-size: 12px;
}
.dl-stats-label {
  color: var(--muted);
}
.dl-stats-value {
  font-weight: 600;
  color: var(--text);
}
.dl-limit-reached {
  color: var(--danger);
}

/* ============================================================
   CHANGELOG MODAL
   ============================================================ */
.changelog-content {
  max-height: 60vh;
  overflow-y: auto;
  padding-right: 4px;
}
.changelog-version {
  padding: 16px 0;
  border-bottom: 1px solid var(--glass-border);
}
.changelog-version:last-child { border-bottom: none; }
.changelog-version-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.changelog-version-header h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}
.changelog-date {
  font-size: 12px;
  color: var(--muted);
  margin-left: auto;
}
.changelog-tag {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 8px;
  border-radius: 10px;
}
.changelog-tag-latest {
  background: var(--accent);
  color: #fff;
}
.changelog-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.changelog-list li {
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
  line-height: 1.4;
}
.changelog-type {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  padding: 1px 6px;
  border-radius: 4px;
  white-space: nowrap;
  flex-shrink: 0;
}
.changelog-type-new {
  background: rgba(34, 197, 94, 0.15);
  color: var(--success);
}
.changelog-type-imp {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent3);
}
.changelog-type-fix {
  background: rgba(239, 68, 68, 0.12);
  color: var(--danger);
}
[data-theme="light"] .changelog-type-new {
  background: rgba(34, 197, 94, 0.12);
}
[data-theme="light"] .changelog-type-imp {
  background: rgba(59, 130, 246, 0.12);
}
[data-theme="light"] .changelog-type-fix {
  background: rgba(239, 68, 68, 0.10);
}
.footer-link {
  color: var(--muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.footer-link:hover {
  color: var(--accent);
  text-decoration: underline;
}

/* ===== Admin Tabs ===== */
.admin-tabs {
  border-bottom: 1px solid var(--glass-border);
  padding-bottom: 10px;
}
.admin-tab {
  background: transparent;
  color: var(--muted);
  border: 1px solid transparent;
}
.admin-tab.active {
  background: var(--glass-bg);
  color: var(--text);
  border-color: var(--accent);
}
.admin-tab:hover:not(.active) {
  color: var(--text);
  background: var(--glass-bg-hover);
}

/* Log table */
#adminLogList table {
  font-size: 13px;
}
#adminLogList th {
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}
#adminLogList code {
  font-size: 12px;
  color: var(--accent);
}

/* --- Transfer Message --- */
.transfer-message-box {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  margin-top: 10px;
  background: rgba(124, 92, 255, 0.08);
  border: 1px solid rgba(124, 92, 255, 0.2);
  border-radius: 10px;
  color: var(--text);
}
.transfer-message-icon {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--accent);
  opacity: 0.7;
}
.transfer-message-text {
  font-size: 14px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

/* --- Storage Overview --- */
.storage-bar {
  width: 100%;
  height: 10px;
  background: rgba(255,255,255,0.06);
  border-radius: 5px;
  overflow: hidden;
  margin: 8px 0;
}
.storage-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent3));
  border-radius: 5px;
  transition: width 0.3s ease;
}

/* ============================================================
   V5.5.0: Language Toggle
   ============================================================ */
.lang-toggle {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  transition: all var(--transition-fast);
  height: 36px;
  display: inline-flex;
  align-items: center;
}
.lang-toggle:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
}

/* ============================================================
   V5.5.0: E2EE Toggle & Badge
   ============================================================ */
.e2ee-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  transition: all var(--transition-fast);
  background: var(--glass-bg);
}
.e2ee-toggle:hover {
  border-color: var(--accent);
  background: rgba(124, 92, 255, 0.05);
}
.e2ee-checkbox { accent-color: var(--accent); margin: 0; flex-shrink: 0; }
.e2ee-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
}
.e2ee-icon { color: var(--accent); flex-shrink: 0; }
.encrypted-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  background: rgba(124, 92, 255, 0.1);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}
.encrypted-badge svg { width: 12px; height: 12px; }

/* ============================================================
   V5.5.0: Comments Section
   ============================================================ */
.comments-section {
  border-top: 1px solid var(--glass-border);
  padding-top: 14px;
}
.comments-list {
  max-height: 300px;
  overflow-y: auto;
  margin-bottom: 10px;
}
.comment-bubble {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  margin-bottom: 8px;
  animation: fileSlideIn 0.2s ease;
}
.comment-bubble:hover {
  background: var(--glass-bg-hover);
}
.comment-author {
  font-weight: 600;
  font-size: 13px;
  color: var(--accent);
}
.comment-time {
  font-size: 11px;
  color: var(--muted);
  margin-left: 8px;
}
.comment-text {
  margin-top: 4px;
  font-size: 14px;
  word-break: break-word;
  line-height: 1.5;
}
.comment-form {
  margin-top: 8px;
}
.comments-empty {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  padding: 12px;
}
.glass-input-sm {
  padding: 8px 12px;
  font-size: 13px;
}

/* ============================================================
   V5.5.0: Image Gallery Modal
   ============================================================ */
.glass-modal-gallery {
  max-width: 1200px;
  width: 95vw;
  height: 90vh;
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
}
.gallery-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--glass-border);
  flex-shrink: 0;
}
.gallery-header h2 { margin: 0; }
.gallery-counter {
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  margin-left: auto;
}
.gallery-actions {
  display: flex;
  gap: 6px;
}
.gallery-viewport {
  flex: 1;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  min-height: 0;
  background: rgba(0, 0, 0, 0.2);
}
.gallery-image-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 16px;
}
.gallery-image-container img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: opacity var(--transition-fast);
  border-radius: var(--radius-sm);
}
.gallery-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--text);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 24px;
  cursor: pointer;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}
.gallery-prev { left: 12px; }
.gallery-next { right: 12px; }
.gallery-arrow:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  transform: translateY(-50%) scale(1.05);
}
.gallery-thumbnails {
  display: flex;
  gap: 6px;
  padding: 10px 16px;
  overflow-x: auto;
  border-top: 1px solid var(--glass-border);
  flex-shrink: 0;
  background: var(--glass-bg);
}
.gallery-thumb {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  flex-shrink: 0;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}
.gallery-thumb:hover { transform: scale(1.05); }
.gallery-thumb.active {
  border-color: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}
.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Gallery responsive */
@media (max-width: 768px) {
  .glass-modal-gallery { width: 100vw; height: 100vh; border-radius: 0; }
  .gallery-arrow { width: 36px; height: 36px; font-size: 20px; }
  .gallery-prev { left: 6px; }
  .gallery-next { right: 6px; }
  .gallery-thumb { width: 44px; height: 44px; }
}

/* ============================================================
   V5.5.0: Improved Toast with Icons
   ============================================================ */
.toast {
  display: flex;
  align-items: center;
  gap: 8px;
}
.toast-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.toast-success .toast-icon { color: var(--success); }
.toast-error .toast-icon { color: var(--danger); }
.toast-warning { border-color: rgba(245, 158, 11, 0.3); }
.toast-warning .toast-icon { color: var(--warning); }

/* ============================================================
   V5.5.0: Skeleton Loading
   ============================================================ */
.skeleton {
  background: linear-gradient(90deg, var(--glass-bg) 25%, var(--glass-bg-hover) 50%, var(--glass-bg) 75%);
  background-size: 200% 100%;
  animation: skeleton-pulse 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}
@keyframes skeleton-pulse {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
.skeleton-line { height: 16px; margin-bottom: 8px; }
.skeleton-line-short { width: 60%; }
.skeleton-card { height: 80px; margin-bottom: 10px; }

/* ============================================================
   V5.5.0: Gallery Button in File List
   ============================================================ */
.gallery-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
}
.gallery-trigger svg { color: var(--accent); }

/* ============================================================
   V5.5.0: Canvas Charts
   ============================================================ */
canvas {
  width: 100%;
  display: block;
}

/* ============================================================
   V5.5.0: Improved Drag & Drop
   ============================================================ */
.drop-zone.drag-over {
  border-color: var(--accent);
  background: rgba(124, 92, 255, 0.08);
  transform: scale(1.01);
  box-shadow: 0 0 20px var(--accent-glow), inset 0 0 30px rgba(124, 92, 255, 0.05);
}
.drop-zone.drag-over .drop-zone-icon svg {
  animation: bounce-upload 0.6s ease infinite;
}
@keyframes bounce-upload {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* ============================================================
   V5.5.0: Skip to Content (Accessibility)
   ============================================================ */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--accent);
  color: white;
  padding: 8px;
  z-index: 9999;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 0;
}

/* ============================================================
   V5.5.0: Beta Tag
   ============================================================ */
/* Beta Banner */
.beta-banner {
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  color: #fff;
  text-align: center;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  position: sticky;
  top: 0;
  z-index: 200;
  box-shadow: 0 2px 12px rgba(239, 68, 68, 0.3);
}
.beta-banner svg {
  flex-shrink: 0;
}

.beta-tag {
  display: inline-block;
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 1px 6px;
  border-radius: 4px;
  vertical-align: middle;
  margin-left: 2px;
}