/* ============================================================
   StreamEx — Professional Video Platform
   Light + Dark theme | Plus Jakarta Sans
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,400;0,500;0,600;0,700;0,800&display=swap');

/* ---- Reset ------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-rendering: optimizeLegibility; scroll-behavior: smooth; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font-family: inherit; }
img { display: block; max-width: 100%; }

/* ---- Design Tokens --------------------------------------- */
:root {
  /* Backgrounds */
  --bg-page:    #f4f4f5;
  --bg-base:    #ffffff;
  --bg-subtle:  #fafafa;
  --bg-muted:   #f4f4f5;
  --bg-hover:   #f0f0f1;

  /* Borders */
  --border:     #e4e4e7;
  --border-strong: #d4d4d8;

  /* Text */
  --text-high:  #09090b;
  --text-med:   #52525b;
  --text-low:   #a1a1aa;
  --text-xlow:  #d4d4d8;

  /* Accent — Indigo */
  --accent:         #4f46e5;
  --accent-dark:    #4338ca;
  --accent-light:   #eef2ff;
  --accent-text:    #4338ca;
  --accent-border:  #c7d2fe;

  /* Semantic */
  --success:    #16a34a;
  --success-bg: #f0fdf4;
  --success-bd: #bbf7d0;
  --warn:       #ca8a04;
  --warn-bg:    #fefce8;
  --warn-bd:    #fde68a;
  --danger:     #dc2626;
  --danger-bg:  #fef2f2;
  --danger-bd:  #fecaca;
  --info:       #2563eb;
  --info-bg:    #eff6ff;
  --info-bd:    #bfdbfe;

  /* Layout */
  --sidebar-w:  248px;
  --topbar-h:   56px;

  /* Radii */
  --r-sm:  4px;
  --r:     6px;
  --r-lg:  10px;
  --r-xl:  14px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0,0,0,.04);
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow:    0 2px 8px rgba(0,0,0,.06), 0 1px 3px rgba(0,0,0,.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.04);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.10), 0 4px 12px rgba(0,0,0,.05);
  --shadow-xl: 0 20px 60px rgba(0,0,0,.12), 0 8px 24px rgba(0,0,0,.06);

  --tr:  150ms ease;
  --tr-slow: 250ms ease;
}

[data-theme="dark"] {
  --bg-page:    #09090b;
  --bg-base:    #0f0f12;
  --bg-subtle:  #131316;
  --bg-muted:   #18181c;
  --bg-hover:   #1e1e23;

  --border:       #27272a;
  --border-strong: #3f3f46;

  --text-high:  #fafafa;
  --text-med:   #a1a1aa;
  --text-low:   #52525b;
  --text-xlow:  #3f3f46;

  --accent:         #6366f1;
  --accent-dark:    #818cf8;
  --accent-light:   #1e1b4b;
  --accent-text:    #a5b4fc;
  --accent-border:  #312e81;

  --success:    #22c55e;
  --success-bg: #052e16;
  --success-bd: #14532d;
  --warn:       #eab308;
  --warn-bg:    #1c1400;
  --warn-bd:    #713f12;
  --danger:     #f87171;
  --danger-bg:  #1c0404;
  --danger-bd:  #7f1d1d;
  --info:       #60a5fa;
  --info-bg:    #0c1929;
  --info-bd:    #1e3a5f;

  --shadow-xs: 0 1px 2px rgba(0,0,0,.2);
  --shadow-sm: 0 1px 3px rgba(0,0,0,.3), 0 1px 2px rgba(0,0,0,.2);
  --shadow:    0 2px 8px rgba(0,0,0,.35), 0 1px 3px rgba(0,0,0,.25);
  --shadow-md: 0 4px 16px rgba(0,0,0,.4), 0 2px 6px rgba(0,0,0,.3);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.5), 0 4px 12px rgba(0,0,0,.35);
}

/* ---- Base ------------------------------------------------ */
body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-page);
  color: var(--text-high);
  line-height: 1.5;
  min-height: 100vh;
}

/* ============================================================
   LAYOUT
   ============================================================ */

.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ---- Sidebar --------------------------------------------- */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--bg-base);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 50;
  transition: background var(--tr), border-color var(--tr);

  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 16px 14px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.sidebar-logo-icon {
  width: 30px; height: 30px;
  background: var(--accent);
  border-radius: var(--r);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.sidebar-logo-icon svg { width: 16px; height: 16px; color: #fff; }

.sidebar-logo-name {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--text-high);
  letter-spacing: -0.03em;
  line-height: 1;
}
.sidebar-logo-sub {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-low);
  margin-top: 2px;
  letter-spacing: 0.02em;
}

.sidebar-body {
  flex: 1;
  padding: 10px 8px;
  overflow-y: auto;
}

.sidebar-section { margin-bottom: 4px; }

.sidebar-section-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-low);
  padding: 10px 8px 4px;
}

.sidebar-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 9px;
  border-radius: var(--r);
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-med);
  transition: background var(--tr), color var(--tr);
  position: relative;
}

.sidebar-nav a svg {
  width: 15px; height: 15px;
  flex-shrink: 0;
  color: var(--text-low);
  transition: color var(--tr);
}

.sidebar-nav a:hover {
  background: var(--bg-hover);
  color: var(--text-high);
}
.sidebar-nav a:hover svg { color: var(--text-med); }

.sidebar-nav a.active {
  background: var(--accent-light);
  color: var(--accent-text);
  font-weight: 600;
}
.sidebar-nav a.active svg { color: var(--accent); }

.sidebar-footer {
  flex-shrink: 0;
  padding: 8px;
  border-top: 1px solid var(--border);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 9px;
  border-radius: var(--r);
  cursor: default;
}

.sidebar-avatar {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
  letter-spacing: 0;
}

.sidebar-user-name {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-high);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 130px;
}
.sidebar-user-role {
  font-size: 0.65rem;
  color: var(--text-low);
  text-transform: capitalize;
}

/* ---- Main Content ---------------------------------------- */
.main-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg-page);
}

/* ---- Topbar ---------------------------------------------- */
.topbar {
  height: var(--topbar-h);
  background: var(--bg-base);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 12px;
  position: sticky;
  top: 0;
  z-index: 40;
  flex-shrink: 0;
  transition: background var(--tr), border-color var(--tr);
}

.topbar-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-high);
  flex: 1;
  letter-spacing: -0.01em;
}

.topbar-divider {
  width: 1px;
  height: 18px;
  background: var(--border);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ---- Page Content ---------------------------------------- */
.page-content {
  padding: 20px;
  flex: 1;
}

/* ============================================================
   COMPONENTS
   ============================================================ */

/* ---- Buttons --------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 12px;
  height: 32px;
  border-radius: var(--r);
  font-size: 0.8rem;
  font-weight: 600;
  line-height: 1;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--tr);
  white-space: nowrap;
  user-select: none;
}
.btn svg { width: 14px; height: 14px; flex-shrink: 0; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 1px 2px rgba(79,70,229,.25), inset 0 1px 0 rgba(255,255,255,.1);
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  box-shadow: 0 2px 4px rgba(79,70,229,.3), inset 0 1px 0 rgba(255,255,255,.1);
}
.btn-primary:active:not(:disabled) { transform: translateY(0.5px); }

.btn-secondary {
  background: var(--bg-base);
  color: var(--text-med);
  border-color: var(--border);
  box-shadow: var(--shadow-xs);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--bg-hover);
  color: var(--text-high);
  border-color: var(--border-strong);
}

.btn-ghost {
  background: transparent;
  color: var(--text-med);
  border-color: transparent;
}
.btn-ghost:hover:not(:disabled) {
  background: var(--bg-hover);
  color: var(--text-high);
}

.btn-danger {
  background: var(--danger-bg);
  color: var(--danger);
  border-color: var(--danger-bd);
}
.btn-danger:hover:not(:disabled) {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
}

.btn-icon {
  width: 32px; height: 32px; padding: 0;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--r);
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-med);
  cursor: pointer;
  transition: all var(--tr);
  flex-shrink: 0;
}
.btn-icon:hover { background: var(--bg-hover); color: var(--text-high); }
.btn-icon svg { width: 15px; height: 15px; }

.btn-xs { height: 26px; padding: 0 9px; font-size: 0.75rem; }
.btn-xs svg { width: 12px; height: 12px; }
.btn-sm { height: 30px; padding: 0 10px; font-size: 0.775rem; }
.btn-lg { height: 38px; padding: 0 16px; font-size: 0.875rem; }

/* ---- Cards ----------------------------------------------- */
.card {
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-xs);
  transition: background var(--tr), border-color var(--tr);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}

.card-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-high);
  letter-spacing: -0.01em;
}

.card-body { padding: 18px; }

/* ---- Stats Grid ------------------------------------------ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 18px;
  box-shadow: var(--shadow-xs);
}

.stat-icon {
  width: 32px; height: 32px;
  border-radius: var(--r);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px;
}
.stat-icon svg { width: 16px; height: 16px; }
.stat-icon.blue   { background: var(--info-bg);    color: var(--info); border: 1px solid var(--info-bd); }
.stat-icon.green  { background: var(--success-bg); color: var(--success); border: 1px solid var(--success-bd); }
.stat-icon.amber  { background: var(--warn-bg);    color: var(--warn); border: 1px solid var(--warn-bd); }
.stat-icon.purple { background: var(--accent-light); color: var(--accent); border: 1px solid var(--accent-border); }

.stat-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-low);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 6px;
}

.stat-value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-high);
  letter-spacing: -0.04em;
  line-height: 1;
}

.stat-sub {
  font-size: 0.72rem;
  color: var(--text-low);
  margin-top: 6px;
}

/* ---- Badges ---------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.68rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 99px;
  white-space: nowrap;
  border: 1px solid transparent;
}
.badge svg { width: 10px; height: 10px; }

.badge-success { background: var(--success-bg); color: var(--success); border-color: var(--success-bd); }
.badge-warn    { background: var(--warn-bg);    color: var(--warn);    border-color: var(--warn-bd); }
.badge-danger  { background: var(--danger-bg);  color: var(--danger);  border-color: var(--danger-bd); }
.badge-info    { background: var(--info-bg);    color: var(--info);    border-color: var(--info-bd); }
.badge-neutral { background: var(--bg-muted);   color: var(--text-med); border-color: var(--border); }
.badge-accent  { background: var(--accent-light); color: var(--accent-text); border-color: var(--accent-border); }

/* ---- Table ----------------------------------------------- */
.table-wrap {
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
}

table { width: 100%; border-collapse: collapse; }

thead { background: var(--bg-subtle); }
th {
  padding: 9px 14px;
  text-align: left;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-low);
  white-space: nowrap;
  border-bottom: 1px solid var(--border);
}
th:first-child { padding-left: 18px; }
th:last-child { padding-right: 18px; }

td {
  padding: 11px 14px;
  font-size: 0.8rem;
  color: var(--text-med);
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
td:first-child { padding-left: 18px; }
td:last-child { padding-right: 18px; }
tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--bg-subtle); }

.td-primary { color: var(--text-high); font-weight: 600; }
.td-mono { font-family: ui-monospace, 'SF Mono', monospace; font-size: 0.75rem; }

/* ---- Forms ----------------------------------------------- */
.form-group { margin-bottom: 14px; }

.form-label {
  display: block;
  font-size: 0.775rem;
  font-weight: 600;
  color: var(--text-med);
  margin-bottom: 6px;
}

.form-control {
  display: block;
  width: 100%;
  height: 34px;
  padding: 0 10px;
  font-size: 0.8rem;
  font-family: inherit;
  color: var(--text-high);
  background: var(--bg-base);
  border: 1px solid var(--border-strong);
  border-radius: var(--r);
  outline: none;
  transition: border-color var(--tr), box-shadow var(--tr), background var(--tr);
  box-shadow: var(--shadow-xs);
}

.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,70,229,.12);
}
.form-control::placeholder { color: var(--text-low); }
.form-control:disabled { opacity: 0.5; cursor: not-allowed; }

textarea.form-control { height: auto; padding: 8px 10px; }
select.form-control { cursor: pointer; }

.form-hint {
  font-size: 0.72rem;
  color: var(--text-low);
  margin-top: 4px;
}

/* ---- Alerts ---------------------------------------------- */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  padding: 10px 13px;
  border-radius: var(--r);
  font-size: 0.8rem;
  border: 1px solid;
}
.alert svg { width: 15px; height: 15px; flex-shrink: 0; margin-top: 1px; }
.alert-success { background: var(--success-bg); color: var(--success); border-color: var(--success-bd); }
.alert-warn    { background: var(--warn-bg);    color: var(--warn);    border-color: var(--warn-bd); }
.alert-danger  { background: var(--danger-bg);  color: var(--danger);  border-color: var(--danger-bd); }
.alert-info    { background: var(--info-bg);    color: var(--info);    border-color: var(--info-bd); }

/* ---- Upload Zone ----------------------------------------- */
.upload-zone {
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--r-xl);
  padding: 40px 32px;
  text-align: center;
  cursor: pointer;
  transition: all var(--tr-slow);
  background: var(--bg-subtle);
}
.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--accent);
  background: var(--accent-light);
}

.upload-zone-icon {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--bg-base);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
  color: var(--text-low);
  box-shadow: var(--shadow-sm);
}
.upload-zone-icon svg { width: 22px; height: 22px; }

.upload-zone h3 { font-size: 0.875rem; font-weight: 700; color: var(--text-high); margin-bottom: 5px; }
.upload-zone p  { font-size: 0.775rem; color: var(--text-low); }
.upload-zone p strong { color: var(--accent-text); font-weight: 600; }

/* ---- Progress -------------------------------------------- */
.progress-track {
  background: var(--bg-muted);
  border-radius: 99px;
  height: 5px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 99px;
  transition: width 0.35s ease;
}

/* ---- Quality Checkboxes ---------------------------------- */
.quality-grid { display: flex; flex-wrap: wrap; gap: 6px; }
.quality-opt { position: relative; }
.quality-opt input { position: absolute; opacity: 0; width: 0; height: 0; }
.quality-opt label {
  display: flex; align-items: center; justify-content: center;
  min-width: 58px;
  height: 30px;
  padding: 0 12px;
  border: 1px solid var(--border-strong);
  border-radius: var(--r);
  font-size: 0.775rem;
  font-weight: 600;
  color: var(--text-med);
  cursor: pointer;
  transition: all var(--tr);
  background: var(--bg-base);
  box-shadow: var(--shadow-xs);
  user-select: none;
}
.quality-opt input:checked + label {
  border-color: var(--accent);
  background: var(--accent-light);
  color: var(--accent-text);
  box-shadow: 0 0 0 2px rgba(99,102,241,.15);
}
.quality-opt label:hover {
  border-color: var(--border-strong);
  background: var(--bg-hover);
  color: var(--text-high);
}

/* ---- Theme Toggle ---------------------------------------- */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  border-radius: var(--r);
  border: 1px solid var(--border);
  background: var(--bg-base);
  color: var(--text-med);
  cursor: pointer;
  transition: all var(--tr);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-xs);
}
.theme-toggle:hover { background: var(--bg-hover); color: var(--text-high); border-color: var(--border-strong); }
.theme-toggle svg { width: 15px; height: 15px; position: absolute; transition: opacity var(--tr), transform var(--tr); }
.icon-sun  { opacity: 1; transform: scale(1); }
.icon-moon { opacity: 0; transform: scale(0.5); }
[data-theme="dark"] .icon-sun  { opacity: 0; transform: scale(0.5); }
[data-theme="dark"] .icon-moon { opacity: 1; transform: scale(1); }

/* ---- Video Grid ------------------------------------------ */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.video-card {
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--tr), box-shadow var(--tr), transform var(--tr);
  box-shadow: var(--shadow-xs);
}
.video-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  background: var(--bg-muted);
  overflow: hidden;
}
.video-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.04); }

.video-thumb-empty {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-xlow);
}
.video-thumb-empty svg { width: 28px; height: 28px; }

.video-duration {
  position: absolute;
  bottom: 7px; right: 7px;
  background: rgba(0,0,0,.72);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 2px 5px;
  border-radius: var(--r-sm);
  letter-spacing: 0.02em;
}

.video-status-pill {
  position: absolute;
  top: 7px; left: 7px;
  font-size: 0.64rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 99px;
  letter-spacing: 0.04em;
}

.video-card-body { padding: 12px 14px; }
.video-card-title {
  font-size: 0.825rem;
  font-weight: 700;
  color: var(--text-high);
  margin-bottom: 5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.video-card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.7rem;
  color: var(--text-low);
}
.video-card-meta span { display: flex; align-items: center; gap: 3px; }
.video-card-meta svg { width: 11px; height: 11px; }

/* ---- Player ---------------------------------------------- */
.player-wrap {
  background: #000;
  border-radius: var(--r-xl);
  overflow: hidden;
  aspect-ratio: 16/9;
  max-height: 68vh;
  box-shadow: var(--shadow-lg);
}
.player-wrap video { width: 100%; height: 100%; display: block; }

/* ---- Modal ----------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--tr-slow);
}
.modal-overlay.open { opacity: 1; pointer-events: auto; }

.modal {
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  width: 100%;
  max-width: 460px;
  box-shadow: var(--shadow-xl);
  transform: scale(0.97) translateY(6px);
  transition: transform var(--tr-slow);
}
.modal-overlay.open .modal { transform: scale(1) translateY(0); }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}
.modal-title { font-size: 0.875rem; font-weight: 700; color: var(--text-high); }
.modal-body  { padding: 18px; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
  padding: 12px 18px;
  border-top: 1px solid var(--border);
  background: var(--bg-subtle);
  border-radius: 0 0 var(--r-xl) var(--r-xl);
}

/* ---- Empty State ----------------------------------------- */
.empty-state {
  text-align: center;
  padding: 48px 24px;
}
.empty-icon {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--bg-muted);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 14px;
  color: var(--text-xlow);
}
.empty-icon svg { width: 22px; height: 22px; }
.empty-title { font-size: 0.875rem; font-weight: 700; color: var(--text-med); margin-bottom: 5px; }
.empty-desc  { font-size: 0.775rem; color: var(--text-low); }

/* ---- Toasts ---------------------------------------------- */
.toast-stack {
  position: fixed;
  bottom: 20px; right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 6px;
  pointer-events: none;
}
.toast {
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 10px 14px;
  box-shadow: var(--shadow-lg);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-high);
  max-width: 320px;
  display: flex;
  align-items: center;
  gap: 9px;
  pointer-events: auto;
  transform: translateX(120%);
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.toast.visible { transform: translateX(0); }
.toast svg { width: 15px; height: 15px; flex-shrink: 0; }
.toast-success { border-left: 3px solid var(--success); }
.toast-error   { border-left: 3px solid var(--danger); }
.toast-warn    { border-left: 3px solid var(--warn); }
.toast-info    { border-left: 3px solid var(--info); }

/* ---- Page Header ----------------------------------------- */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}
.page-header h1 {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-high);
  letter-spacing: -0.03em;
  line-height: 1.2;
}
.page-header p { font-size: 0.775rem; color: var(--text-low); margin-top: 2px; }

/* ---- Auth Page ------------------------------------------- */
.auth-page {
  min-height: 100vh;
  background: var(--bg-page);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.auth-card { width: 100%; max-width: 360px; }

.auth-brand {
  text-align: center;
  margin-bottom: 24px;
}
.auth-brand-icon {
  width: 42px; height: 42px;
  background: var(--accent);
  border-radius: var(--r-lg);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 10px;
  box-shadow: 0 4px 12px rgba(79,70,229,.35);
}
.auth-brand-icon svg { width: 22px; height: 22px; color: #fff; }
.auth-brand h1 { font-size: 1.1rem; font-weight: 800; color: var(--text-high); letter-spacing: -0.03em; }
.auth-brand p { font-size: 0.775rem; color: var(--text-low); margin-top: 3px; }

.auth-panel {
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 24px;
  box-shadow: var(--shadow-md);
}
.auth-panel-title { font-size: 0.875rem; font-weight: 700; color: var(--text-high); margin-bottom: 3px; }
.auth-panel-sub   { font-size: 0.75rem; color: var(--text-low); margin-bottom: 20px; }

/* ---- Error Page ------------------------------------------ */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px 24px;
  background: var(--bg-page);
}
.error-code {
  font-size: 6rem;
  font-weight: 800;
  letter-spacing: -0.06em;
  color: var(--border-strong);
  line-height: 1;
  margin-bottom: 8px;
}
.error-title   { font-size: 1.1rem; font-weight: 700; color: var(--text-high); margin-bottom: 8px; }
.error-message { font-size: 0.8rem; color: var(--text-low); margin-bottom: 24px; max-width: 360px; margin-left: auto; margin-right: auto; }

/* ---- Embed ----------------------------------------------- */
.embed-player { position: fixed; inset: 0; background: #000; }
.embed-player video { width: 100%; height: 100%; display: block; }

/* ---- Misc utils ------------------------------------------ */
.flex          { display: flex; }
.flex-col      { flex-direction: column; }
.flex-1        { flex: 1; min-width: 0; }
.items-center  { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mt-1  { margin-top: 4px; }
.mt-2  { margin-top: 8px; }
.mt-4  { margin-top: 16px; }
.mt-5  { margin-top: 20px; }
.mb-3  { margin-bottom: 12px; }
.mb-4  { margin-bottom: 16px; }
.mb-5  { margin-bottom: 20px; }
.w-full { width: 100%; }
.truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.font-mono { font-family: ui-monospace, 'SF Mono', 'Fira Mono', monospace; }
.text-xs   { font-size: 0.72rem; }
.text-sm   { font-size: 0.775rem; }
.text-muted { color: var(--text-low); }
.text-med   { color: var(--text-med); }
.font-semibold { font-weight: 600; }
.font-bold     { font-weight: 700; }
.spin { animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Responsive ------------------------------------------ */
@media (max-width: 900px) {
  .sidebar {
    position: fixed;
    left: 0; top: 0; bottom: 0;
    transform: translateX(-100%);
    transition: transform var(--tr-slow), box-shadow var(--tr-slow);
    z-index: 200;
    height: 100%;
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-xl);
  }
  .main-content { margin-left: 0 !important; }
  .mobile-overlay {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,.4);
    z-index: 190;
  }
  .mobile-overlay.show { display: block; }
  .show-mobile { display: flex !important; }
}
@media (min-width: 901px) {
  .show-mobile { display: none !important; }
}

@media (max-width: 640px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
  .page-content { padding: 14px; }
  .page-header { flex-wrap: wrap; }
}