/* ==========================================================================
   Datascrape™ Enterprise Intelligence Platform v6.0
   Design System · Ultra-Dark Premium SaaS
   ========================================================================== */

/* --------------------------------------------------------------------------
   @font-face fallback — Inter & JetBrains Mono via Google Fonts
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

/* --------------------------------------------------------------------------
   1. DESIGN TOKENS — Dark Premium Palette
   -------------------------------------------------------------------------- */
:root {
  /* Core surfaces — deep charcoal to near-black */
  --bg-root:      #050508;
  --bg-layer-1:   #0a0b10;
  --bg-layer-2:   #0f1119;
  --bg-card:       #13141f;
  --bg-card-hover: #181a28;
  --bg-glass:      rgba(19, 20, 35, 0.75);
  --bg-glass-border: rgba(255, 255, 255, 0.06);
  --bg-input:      #0a0b14;
  --bg-tooltip:    #1e2030;

  /* Borders — refined */
  --border-subtle:   rgba(255, 255, 255, 0.04);
  --border-default:  rgba(255, 255, 255, 0.08);
  --border-strong:   rgba(255, 255, 255, 0.14);
  --border-glow:     rgba(99, 102, 241, 0.25);

  /* Text — crisp hierarchy */
  --text-primary:    #edf0f7;
  --text-secondary:  #9498b0;
  --text-tertiary:   #5c6078;
  --text-inverse:    #050508;
  --text-accent:     #a5b4fc;

  /* Accent — Indigo/Blue/Violet electric */
  --accent-300: #a5b4fc;
  --accent-400: #818cf8;
  --accent-500: #6366f1;
  --accent-600: #4f46e5;
  --accent-700: #4338ca;

  /* Secondary accent — Emerald */
  --green-400: #34d399;
  --green-500: #10b981;
  --green-600: #059669;

  /* Supporting accents */
  --cyan-400:  #22d3ee;
  --cyan-500:  #06b6d4;
  --amber-400: #fbbf24;
  --amber-500: #f59e0b;
  --rose-400:  #fb7185;
  --rose-500:  #f43f5e;

  /* Semantic */
  --ok:            #10b981;
  --ok-bg:         rgba(16, 185, 129, 0.08);
  --ok-border:     rgba(16, 185, 129, 0.2);
  --ok-glow:       rgba(16, 185, 129, 0.3);
  --warn:          #f59e0b;
  --warn-bg:       rgba(245, 158, 11, 0.08);
  --warn-border:   rgba(245, 158, 11, 0.2);
  --err:           #f43f5e;
  --err-bg:        rgba(244, 63, 94, 0.08);
  --err-border:    rgba(244, 63, 94, 0.2);
  --err-glow:      rgba(244, 63, 94, 0.3);
  --info:          #6366f1;
  --info-bg:       rgba(99, 102, 241, 0.08);
  --info-border:   rgba(99, 102, 241, 0.2);

  /* Gradients */
  --gradient-primary:   linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
  --gradient-accent:    linear-gradient(135deg, #06b6d4 0%, #6366f1 50%, #a855f7 100%);
  --gradient-success:   linear-gradient(135deg, #059669 0%, #10b981 50%, #34d399 100%);
  --gradient-danger:    linear-gradient(135deg, #dc2626 0%, #f43f5e 50%, #fb7185 100%);
  --gradient-card-top:  linear-gradient(180deg, rgba(99,102,241,0.08) 0%, transparent 40%);
  --gradient-radial:    radial-gradient(ellipse 80% 80% at 50% -20%, rgba(99,102,241,0.15), transparent);

  /* Shadows — sophisticated layered */
  --shadow-xs:   0 1px 2px rgba(0,0,0,0.4);
  --shadow-sm:   0 2px 4px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.5);
  --shadow-md:   0 8px 16px rgba(0,0,0,0.4), 0 2px 4px rgba(0,0,0,0.5);
  --shadow-lg:   0 16px 32px rgba(0,0,0,0.5), 0 4px 8px rgba(0,0,0,0.4);
  --shadow-xl:   0 24px 48px rgba(0,0,0,0.6), 0 8px 16px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 20px rgba(99,102,241,0.15), 0 0 60px rgba(99,102,241,0.05);
  --shadow-glow-green: 0 0 20px rgba(16,185,129,0.15), 0 0 60px rgba(16,185,129,0.05);

  /* Radius */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;

  /* Layout */
  --sidebar-w: 272px;
  --header-h: 64px;

  /* Transitions */
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast:   120ms;
  --duration-normal: 250ms;
  --duration-slow:   500ms;

  /* Backdrop blur */
  --blur-sm:  blur(6px);
  --blur-md:  blur(12px);
  --blur-lg:  blur(24px);
}

/* --------------------------------------------------------------------------
   2. RESET & BASE
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  background: var(--bg-root);
  color: var(--text-primary);
}

body {
  font-family: var(--font-sans);
  background: var(--bg-root);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Ambient background effects */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: var(--gradient-radial);
  pointer-events: none;
  z-index: 0;
}

/* Subtle grid pattern */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: -1px -1px;
  pointer-events: none;
  z-index: 0;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 0%, black 30%, transparent 70%);
}

a {
  color: var(--accent-400);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}
a:hover { color: var(--accent-300); }

code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 2px 7px;
  border-radius: var(--radius-xs);
  background: var(--bg-input);
  color: var(--accent-300);
  border: 1px solid var(--border-default);
}

pre {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  line-height: 1.7;
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  overflow-x: auto;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
}

img { max-width: 100%; display: block; }

::selection {
  background: rgba(99,102,241,0.35);
  color: #fff;
}

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.14); }

/* --------------------------------------------------------------------------
   3. APP SHELL — Sidebar + Main
   -------------------------------------------------------------------------- */
.app-shell {
  display: flex;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

/* ---- Sidebar ---- */
.app-sidebar {
  width: var(--sidebar-w);
  background: var(--bg-layer-1);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  overflow-y: auto;
  border-right: 1px solid var(--border-default);
  backdrop-filter: var(--blur-md);
}

.sidebar-brand {
  padding: 22px 20px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 6px;
}

.sidebar-brand .logo {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 0 16px rgba(99,102,241,0.3);
  position: relative;
}
.sidebar-brand .logo::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 10px;
  background: var(--gradient-primary);
  opacity: 0;
  filter: blur(8px);
  z-index: -1;
  transition: opacity var(--duration-slow) var(--ease-out);
}
.sidebar-brand:hover .logo::after { opacity: 0.4; }

.sidebar-brand .brand-text {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.2;
}
.sidebar-brand .brand-text small {
  display: block;
  font-size: 0.64rem;
  font-weight: 500;
  color: var(--text-tertiary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Sidebar status */
.sidebar-status {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  margin: 4px 12px 10px;
  border-radius: var(--radius-sm);
  background: var(--bg-layer-2);
  border: 1px solid var(--border-subtle);
  font-size: 0.76rem;
}
.sidebar-status .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
}
.sidebar-status .dot.on {
  background: var(--ok);
  box-shadow: 0 0 8px var(--ok-glow), 0 0 16px rgba(16,185,129,0.2);
}
.sidebar-status .dot.off {
  background: var(--err);
  box-shadow: 0 0 8px var(--err-glow);
}
.sidebar-status .status-label {
  color: var(--text-tertiary);
  font-size: 0.74rem;
  font-weight: 500;
}

/* Sidebar nav */
.sidebar-nav { flex: 1; padding: 0 12px; }
.sidebar-nav .nav-section {
  font-size: 0.64rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-tertiary);
  padding: 14px 14px 6px;
  margin-top: 4px;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.86rem;
  font-weight: 500;
  transition: all var(--duration-fast) var(--ease-out);
  margin-bottom: 2px;
  text-decoration: none;
  position: relative;
}
.sidebar-nav a:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}
.sidebar-nav a.active {
  background: rgba(99,102,241,0.1);
  color: var(--accent-300);
  font-weight: 600;
}
.sidebar-nav a.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: var(--gradient-primary);
  border-radius: 0 2px 2px 0;
}
.sidebar-nav a .nav-icon {
  font-size: 1.1rem;
  width: 22px;
  text-align: center;
  flex-shrink: 0;
  opacity: 0.6;
  transition: opacity var(--duration-fast) var(--ease-out);
}
.sidebar-nav a.active .nav-icon { opacity: 1; }

.sidebar-footer {
  padding: 14px 16px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.7rem;
  color: var(--text-tertiary);
  text-align: center;
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* ---- Main content ---- */
.app-main {
  flex: 1;
  margin-left: var(--sidebar-w);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
}

/* ---- Top header — glassmorphism ---- */
.app-header {
  height: var(--header-h);
  background: var(--bg-glass);
  backdrop-filter: var(--blur-lg);
  -webkit-backdrop-filter: var(--blur-lg);
  border-bottom: 1px solid var(--bg-glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.app-header .page-breadcrumb {
  font-size: 0.82rem;
  color: var(--text-tertiary);
  font-weight: 500;
}
.app-header .page-breadcrumb span {
  color: var(--text-primary);
  font-weight: 600;
}

.header-actions { display: flex; align-items: center; gap: 16px; }

.header-pill {
  font-size: 0.74rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 8px;
  backdrop-filter: var(--blur-sm);
}
.header-pill.connected {
  background: var(--ok-bg);
  color: var(--green-400);
  border: 1px solid var(--ok-border);
  box-shadow: 0 0 12px rgba(16,185,129,0.08);
}
.header-pill.disconnected {
  background: var(--err-bg);
  color: var(--rose-400);
  border: 1px solid var(--err-border);
}
.header-pill .pill-dot {
  width: 7px; height: 7px; border-radius: 50%; display: inline-block;
}
.header-pill.connected .pill-dot { background: var(--ok); box-shadow: 0 0 6px var(--ok-glow); }
.header-pill.disconnected .pill-dot { background: var(--err); }

/* ---- Content area ---- */
.app-content {
  flex: 1;
  padding: 36px 36px 64px;
  max-width: 1320px;
  width: 100%;
}

/* Mobile toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
  line-height: 1;
}

/* --------------------------------------------------------------------------
   4. PAGE HERO
   -------------------------------------------------------------------------- */
.page-hero { margin-bottom: 34px; position: relative; }

.page-title {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 8px;
}
.page-title span {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-subtitle {
  font-size: 0.92rem;
  color: var(--text-tertiary);
  max-width: 600px;
  line-height: 1.65;
  font-weight: 400;
}

/* --------------------------------------------------------------------------
   5. METRIC CARDS — Dashboard power tiles
   -------------------------------------------------------------------------- */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  position: relative;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
  cursor: default;
}
.metric-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-card-top);
  pointer-events: none;
}
.metric-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}
.metric-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}
.metric-card:hover::after { opacity: 1; }

.metric-card .metric-icon {
  font-size: 1.6rem;
  margin-bottom: 12px;
  display: block;
  opacity: 0.8;
}
.metric-card .metric-value {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 6px;
}
.metric-card .metric-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

/* Accent variants */
.metric-card.accent-indigo::after { background: var(--gradient-primary); }
.metric-card.accent-green::after  { background: var(--gradient-success); }
.metric-card.accent-cyan::after   { background: linear-gradient(135deg, #06b6d4, #22d3ee); }
.metric-card.accent-amber::after  { background: linear-gradient(135deg, #d97706, #f59e0b); }

/* --------------------------------------------------------------------------
   6. CARDS — Glass-style containers
   -------------------------------------------------------------------------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 26px 28px;
  margin-bottom: 22px;
  position: relative;
  transition: border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}
.card:hover {
  border-color: var(--border-strong);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}
.card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.card-title span {
  font-weight: 400;
  color: var(--text-tertiary);
  font-size: 0.8rem;
  margin-left: 6px;
}
.card-actions { display: flex; gap: 8px; align-items: center; }
.card-footer {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

/* --------------------------------------------------------------------------
   7. BUTTONS — Polished
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 0.84rem;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  text-decoration: none;
  line-height: 1.4;
  white-space: nowrap;
  letter-spacing: -0.005em;
  position: relative;
  overflow: hidden;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--accent-600);
  color: #fff;
  border-color: var(--accent-600);
  box-shadow: 0 2px 12px rgba(99,102,241,0.25);
}
.btn-primary:hover {
  background: var(--accent-500);
  border-color: var(--accent-500);
  color: #fff;
  box-shadow: 0 4px 20px rgba(99,102,241,0.4);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border-color: var(--border-strong);
}
.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
  color: var(--text-primary);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}
.btn-ghost:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

.btn-danger {
  background: var(--rose-500);
  color: #fff;
  border-color: var(--rose-500);
  box-shadow: 0 2px 12px rgba(244,63,94,0.2);
}
.btn-danger:hover {
  background: var(--rose-400);
  color: #fff;
  box-shadow: 0 4px 20px rgba(244,63,94,0.35);
  transform: translateY(-1px);
}

.btn-success {
  background: var(--green-500);
  color: #050508;
  border-color: var(--green-500);
  box-shadow: 0 2px 12px rgba(16,185,129,0.2);
}
.btn-success:hover {
  background: var(--green-400);
  color: #050508;
  box-shadow: 0 4px 20px rgba(16,185,129,0.35);
  transform: translateY(-1px);
}

.btn-sm { font-size: 0.76rem; padding: 6px 14px; }
.btn-lg { font-size: 0.94rem; padding: 14px 30px; }
.btn:disabled { opacity: 0.35; pointer-events: none; }
.w-full { width: 100%; }

/* --------------------------------------------------------------------------
   8. FORMS
   -------------------------------------------------------------------------- */
.form-group { margin-bottom: 20px; }

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 7px;
  letter-spacing: -0.005em;
}
.form-label span {
  font-weight: 400;
  color: var(--text-tertiary);
  font-size: 0.74rem;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  padding: 11px 15px;
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  transition: all var(--duration-fast) var(--ease-out);
  outline: none;
}
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--accent-500);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15), 0 0 20px rgba(99,102,241,0.06);
  background: var(--bg-card);
}
.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-tertiary);
}
.form-textarea { resize: vertical; min-height: 90px; }
.form-hint {
  font-size: 0.73rem;
  color: var(--text-tertiary);
  margin-top: 6px;
}
.form-row {
  display: flex;
  gap: 16px;
  align-items: flex-end;
  flex-wrap: wrap;
}
.form-row .form-group { flex: 1; min-width: 160px; }

.input-icon { position: relative; }
.input-icon .icon {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
  font-size: 0.9rem;
  pointer-events: none;
}
.input-icon .form-input { padding-left: 42px; }

/* --------------------------------------------------------------------------
   9. STAT GRID
   -------------------------------------------------------------------------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}
.stat-item {
  text-align: center;
  padding: 16px 12px;
  background: var(--bg-layer-2);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  transition: border-color var(--duration-fast) var(--ease-out);
}
.stat-item:hover { border-color: var(--border-default); }
.stat-item .num {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.stat-item .lbl {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 5px;
}

/* --------------------------------------------------------------------------
   10. BADGES
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.badge-blue    { background: rgba(99,102,241,0.12); color: var(--accent-300); border: 1px solid rgba(99,102,241,0.2); }
.badge-green   { background: var(--ok-bg); color: var(--green-400); border: 1px solid var(--ok-border); }
.badge-red     { background: var(--err-bg); color: var(--rose-400); border: 1px solid var(--err-border); }
.badge-amber   { background: var(--warn-bg); color: var(--amber-400); border: 1px solid var(--warn-border); }
.badge-violet  { background: rgba(139,92,246,0.12); color: #a78bfa; border: 1px solid rgba(139,92,246,0.2); }
.badge-cyan    { background: rgba(6,182,212,0.12); color: var(--cyan-400); border: 1px solid rgba(6,182,212,0.2); }
.badge-success { background: var(--ok-bg); color: var(--green-400); }
.badge-error   { background: var(--err-bg); color: var(--rose-400); }
.badge-info    { background: var(--info-bg); color: var(--accent-300); }
.badge-warning { background: var(--warn-bg); color: var(--amber-400); }
.badge-purple  { background: rgba(139,92,246,0.12); color: #c4b5fd; }

/* --------------------------------------------------------------------------
   11. PROGRESS BAR
   -------------------------------------------------------------------------- */
.progress-wrap { margin-bottom: 10px; }
.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
}
.progress-pct {
  font-size: 0.8rem;
  color: var(--accent-300);
  font-weight: 700;
  font-family: var(--font-mono);
}
.progress-track {
  height: 6px;
  background: var(--bg-layer-2);
  border-radius: 3px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 3px;
  transition: width 0.6s var(--ease-out);
  position: relative;
}
.progress-fill::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 20px;
  background: rgba(255,255,255,0.2);
  filter: blur(4px);
}

/* --------------------------------------------------------------------------
   12. ALERTS & FLASHES
   -------------------------------------------------------------------------- */
.flash-item {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  margin-bottom: 18px;
  font-size: 0.84rem;
  display: flex;
  align-items: center;
  gap: 10px;
  line-height: 1.5;
  border: 1px solid;
  backdrop-filter: var(--blur-sm);
}
.flash-success {
  background: var(--ok-bg);
  color: var(--green-400);
  border-color: var(--ok-border);
  box-shadow: 0 0 20px rgba(16,185,129,0.05);
}
.flash-error {
  background: var(--err-bg);
  color: var(--rose-400);
  border-color: var(--err-border);
}
.flash-info {
  background: var(--info-bg);
  color: var(--accent-300);
  border-color: var(--info-border);
}
.flash-warning {
  background: var(--warn-bg);
  color: var(--amber-400);
  border-color: var(--warn-border);
}
.flash-item a { font-weight: 600; text-decoration: underline; }

/* --------------------------------------------------------------------------
   13. DATA TABLES
   -------------------------------------------------------------------------- */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-default);
  background: var(--bg-layer-2);
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
}
.data-table thead {
  background: var(--bg-card);
  border-bottom: 2px solid var(--border-default);
}
.data-table th {
  padding: 13px 18px;
  text-align: left;
  font-weight: 700;
  font-size: 0.72rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
}
.data-table td {
  padding: 13px 18px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  vertical-align: middle;
}
.data-table tbody tr { transition: background var(--duration-fast) var(--ease-out); }
.data-table tbody tr:hover { background: var(--bg-card); }
.data-table tbody tr:last-child td { border-bottom: none; }

/* --------------------------------------------------------------------------
   14. EMPTY STATE
   -------------------------------------------------------------------------- */
.empty-state {
  text-align: center;
  padding: 70px 24px;
}
.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 18px;
  opacity: 0.4;
  filter: grayscale(0.3);
}
.empty-state h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.empty-state p {
  font-size: 0.88rem;
  color: var(--text-tertiary);
  margin-bottom: 24px;
  max-width: 380px;
  margin-left: auto;
  margin-right: auto;
}

/* --------------------------------------------------------------------------
   15. TWO-COLUMN LAYOUT
   -------------------------------------------------------------------------- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}

/* --------------------------------------------------------------------------
   16. MEDIA GALLERY
   -------------------------------------------------------------------------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 16px;
}
.gallery figure {
  background: var(--bg-layer-2);
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-default);
  transition: border-color var(--duration-fast);
}
.gallery figure:hover { border-color: var(--border-strong); }
.gallery img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  display: block;
}
.gallery figcaption {
  padding: 10px 14px;
  font-size: 0.68rem;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  word-break: break-all;
}

.media-item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
}
.media-item:last-child { border-bottom: none; }
.media-item audio, .media-item video {
  max-width: 420px;
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   17. LINKS LIST
   -------------------------------------------------------------------------- */
.links-list {
  list-style: none;
  padding: 0;
  font-size: 0.82rem;
}
.links-list li {
  padding: 7px 0;
  border-bottom: 1px solid var(--border-subtle);
}
.links-list li:last-child { border-bottom: none; }
.links-list a {
  color: var(--accent-400);
  word-break: break-all;
  font-family: var(--font-mono);
  font-size: 0.74rem;
}

/* --------------------------------------------------------------------------
   18. DETAILS & COLLAPSIBLES
   -------------------------------------------------------------------------- */
details {
  margin-bottom: 8px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-layer-2);
  transition: border-color var(--duration-fast);
}
details:hover { border-color: var(--border-strong); }
details[open] { border-color: var(--border-glow); }

details summary {
  padding: 13px 18px;
  cursor: pointer;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-primary);
  user-select: none;
  transition: background var(--duration-fast) var(--ease-out);
}
details summary:hover { background: var(--bg-card); }
details[open] summary {
  border-bottom: 1px solid var(--border-default);
  color: var(--accent-300);
}
.details-content { padding: 18px; }

/* --------------------------------------------------------------------------
   19. ACTION BAR
   -------------------------------------------------------------------------- */
.action-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   20. VNC VIEWER
   -------------------------------------------------------------------------- */
#vnc-wrap {
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-default);
}

/* --------------------------------------------------------------------------
   21. UTILITY CLASSES
   -------------------------------------------------------------------------- */
.flex        { display: flex; }
.flex-center { align-items: center; }
.gap-1       { gap: 4px; }
.gap-2       { gap: 8px; }
.gap-3       { gap: 16px; }
.gap-4       { gap: 24px; }
.mt-1        { margin-top: 4px; }
.mt-2        { margin-top: 12px; }
.mt-3        { margin-top: 20px; }
.mt-4        { margin-top: 32px; }
.mb-1        { margin-bottom: 4px; }
.mb-2        { margin-bottom: 12px; }
.mb-3        { margin-bottom: 20px; }
.mb-4        { margin-bottom: 32px; }
.text-xs     { font-size: 0.7rem; }
.text-sm     { font-size: 0.82rem; }
.text-muted  { color: var(--text-tertiary); }
.text-mono   { font-family: var(--font-mono); }
.text-brand  { color: var(--accent-300); }

/* --------------------------------------------------------------------------
   22. ANIMATIONS
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 6px var(--ok-glow); }
  50%      { box-shadow: 0 0 14px rgba(16,185,129,0.5); }
}
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50%      { transform: translateY(-4px); }
}

.animate-in {
  animation: fadeInUp 0.6s var(--ease-out) both;
}
.animate-in:nth-child(1) { animation-delay: 0.04s; }
.animate-in:nth-child(2) { animation-delay: 0.12s; }
.animate-in:nth-child(3) { animation-delay: 0.20s; }
.animate-in:nth-child(4) { animation-delay: 0.28s; }
.animate-in:nth-child(5) { animation-delay: 0.36s; }
.animate-in:nth-child(6) { animation-delay: 0.44s; }

.pulse { animation: pulse-glow 2s ease-in-out infinite; }

.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   23. TOAST / NOTIFICATION ANIMATIONS
   -------------------------------------------------------------------------- */
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(100%); }
  to   { opacity: 1; transform: translateX(0); }
}

/* --------------------------------------------------------------------------
   24. RESPONSIVE
   -------------------------------------------------------------------------- */
@media (max-width: 1100px) {
  .two-col { grid-template-columns: 1fr; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  :root { --sidebar-w: 0px; }
  .app-sidebar {
    transform: translateX(-100%);
    transition: transform var(--duration-normal) var(--ease-out);
    box-shadow: var(--shadow-xl);
  }
  .app-sidebar.open { transform: translateX(0); width: 280px; }
  .app-main { margin-left: 0; }
  .mobile-toggle { display: block; }
  .app-content { padding: 24px 18px 48px; }
  .app-header { padding: 0 18px; }
}

@media (max-width: 540px) {
  html { font-size: 14px; }
  .metrics-grid { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .two-col { gap: 16px; }
  .form-row { flex-direction: column; }
  .card { padding: 18px; }
  .card-header { flex-direction: column; align-items: flex-start; gap: 12px; }
  .card-actions { width: 100%; }
  .page-title { font-size: 1.4rem; }
  .gallery { grid-template-columns: 1fr 1fr; }
  .action-bar { flex-direction: column; align-items: stretch; }
  .action-bar .btn { justify-content: center; }
  .data-table th, .data-table td { padding: 10px 12px; font-size: 0.77rem; }
}


/* ==========================================================================
   PTE Media Vault — Clean Editorial Light Workspace Override
   Added by Hermes: Apple Clean White × Bloomberg Course Intelligence
   ========================================================================== */
:root {
  --bg-root:#f7f4ee;
  --bg-layer-1:#fffdf8;
  --bg-layer-2:#f0ebe2;
  --bg-card:#fffefa;
  --bg-card-hover:#ffffff;
  --bg-glass:rgba(255,255,255,.82);
  --bg-input:#f4efe7;
  --border-subtle:rgba(34,45,57,.07);
  --border-default:rgba(34,45,57,.12);
  --border-strong:rgba(34,45,57,.22);
  --text-primary:#1f2933;
  --text-secondary:#596574;
  --text-tertiary:#8a94a3;
  --text-inverse:#ffffff;
  --text-accent:#183a59;
  --accent-300:#417399;
  --accent-400:#275d84;
  --accent-500:#183a59;
  --accent-600:#122f49;
  --accent-700:#0d253b;
  --green-400:#35b88a;
  --green-500:#0f8c68;
  --green-600:#087455;
  --cyan-400:#42a9bd;
  --cyan-500:#1b8194;
  --amber-400:#d99a2b;
  --amber-500:#b8750d;
  --rose-400:#d96874;
  --rose-500:#bc3f4d;
  --ok-bg:rgba(15,140,104,.10);
  --ok-border:rgba(15,140,104,.22);
  --warn-bg:rgba(184,117,13,.11);
  --warn-border:rgba(184,117,13,.25);
  --err-bg:rgba(188,63,77,.10);
  --err-border:rgba(188,63,77,.22);
  --info-bg:rgba(24,58,89,.09);
  --info-border:rgba(24,58,89,.20);
  --gradient-primary:linear-gradient(135deg,#183a59 0%,#1b8194 58%,#0f8c68 100%);
  --gradient-accent:linear-gradient(135deg,#f7f4ee 0%,#e8f1ee 42%,#dfeaf0 100%);
  --gradient-card-top:linear-gradient(180deg,rgba(24,58,89,.06) 0%,transparent 46%);
  --gradient-radial:radial-gradient(ellipse 70% 55% at 50% -15%,rgba(24,58,89,.13),transparent 62%);
  --shadow-xs:0 1px 2px rgba(18,38,63,.06);
  --shadow-sm:0 4px 12px rgba(18,38,63,.07);
  --shadow-md:0 10px 26px rgba(18,38,63,.09);
  --shadow-lg:0 18px 46px rgba(18,38,63,.11);
  --shadow-xl:0 28px 70px rgba(18,38,63,.14);
  --shadow-glow:0 16px 55px rgba(24,58,89,.10);
}
html,body{background:var(--bg-root);color:var(--text-primary)}
body::after{background-image:linear-gradient(rgba(24,58,89,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(24,58,89,.035) 1px,transparent 1px);mask-image:linear-gradient(to bottom,black,transparent 72%)}
.app-sidebar{background:rgba(255,253,248,.94);box-shadow:8px 0 30px rgba(18,38,63,.06);backdrop-filter:blur(18px)}
.sidebar-brand .logo{background:var(--gradient-primary);box-shadow:0 12px 26px rgba(24,58,89,.18)}
.sidebar-nav a{color:var(--text-secondary)}
.sidebar-nav a.active,.sidebar-nav a:hover{background:#eef4f5;color:var(--accent-600);border-color:rgba(24,58,89,.12)}
.app-header{background:rgba(247,244,238,.82);backdrop-filter:blur(16px);border-bottom:1px solid var(--border-default)}
.page-title{letter-spacing:-.055em;color:#17212b}.page-title span{background:linear-gradient(135deg,#183a59,#0f8c68);-webkit-background-clip:text;background-clip:text;color:transparent}
.page-subtitle{color:var(--text-secondary);max-width:860px}
.card,.metric-card{background:linear-gradient(180deg,#fffefa,#fbf8f1);border:1px solid var(--border-default);box-shadow:var(--shadow-sm)}
.card:hover,.metric-card:hover{box-shadow:var(--shadow-md);transform:translateY(-1px)}
.metric-card::before{opacity:.85}.metric-value{color:#17212b}.metric-label,.text-muted{color:var(--text-secondary)!important}
.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:0 12px 24px rgba(24,58,89,.16)}
.btn-secondary,.btn-ghost{background:#fffefa;color:var(--accent-600);border:1px solid var(--border-default)}
.btn-secondary:hover,.btn-ghost:hover{background:#eef4f5;border-color:rgba(24,58,89,.22)}
.data-table th{background:#f0ebe2;color:#475569;border-bottom:1px solid var(--border-default)}
.data-table td{border-bottom:1px solid rgba(34,45,57,.08);color:#25313d}.data-table tbody tr:hover{background:#f8f4ec}
code,pre{background:#f1ece3;color:#183a59;border-color:rgba(34,45,57,.10)}
.flash-item{box-shadow:none}.flash-success{background:var(--ok-bg);border-color:var(--ok-border);color:#08664d}.flash-error{background:var(--err-bg);border-color:var(--err-border);color:#97323e}
.empty-state{background:linear-gradient(180deg,#fffefa,#f8f3ea);border:1px dashed rgba(34,45,57,.18)}


/* ==========================================================================
   Udemy-style Lesson Workspace — learner-first content view
   ========================================================================== */
.app-content:has(.learn-shell){max-width:1680px;padding:22px 24px 56px}
.learn-shell{display:grid;grid-template-columns:300px minmax(0,1fr);gap:24px;align-items:start}
.learn-curriculum{position:sticky;top:86px;background:#fffefa;border:1px solid var(--border-default);border-radius:26px;padding:24px;box-shadow:var(--shadow-md)}
.learn-brand-mini{font-size:.68rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-500);margin-bottom:12px}
.learn-curriculum h2{font-size:1.45rem;letter-spacing:-.045em;color:#17212b;margin-bottom:6px}
.learn-curriculum .btn{width:100%;margin-top:10px;justify-content:center}
.learn-stat{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--border-subtle);font-size:.84rem;color:var(--text-secondary)}
.learn-stat span{font-family:var(--font-mono);font-weight:800;color:#17212b;background:#eef4f5;border:1px solid var(--border-default);border-radius:999px;padding:2px 9px}
.learn-main{min-width:0}.learn-hero{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;background:linear-gradient(135deg,#fffefa 0%,#f6f0e7 48%,#e8f1ee 100%);border:1px solid var(--border-default);border-radius:30px;padding:30px;box-shadow:var(--shadow-sm);margin-bottom:20px}
.learn-hero .eyebrow{font-size:.72rem;font-weight:800;letter-spacing:.13em;text-transform:uppercase;color:var(--accent-500);margin-bottom:8px}.learn-hero h1{font-size:2.25rem;line-height:1.05;letter-spacing:-.065em;color:#14202a;max-width:900px}.learn-hero p{max-width:850px;color:var(--text-secondary);margin-top:12px;font-size:.96rem}.learn-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.learn-player-card{background:#0e1720;border-radius:30px;overflow:hidden;border:1px solid rgba(20,32,42,.18);box-shadow:0 28px 70px rgba(18,38,63,.24);margin-bottom:22px;min-height:360px;display:flex;align-items:center;justify-content:center}.learn-player-card video,.learn-player-card iframe{width:100%;aspect-ratio:16/9;min-height:360px;border:0;display:block;background:#050508}.player-placeholder{padding:48px;text-align:center;color:#dbeafe}.player-placeholder h3{font-size:1.4rem;margin-bottom:10px}.player-placeholder p{color:#a8b6c7;max-width:560px;margin:0 auto 18px}.player-placeholder code{display:inline-block;max-width:100%;overflow-wrap:anywhere;background:rgba(255,255,255,.08);color:#bfdbfe;border-color:rgba(255,255,255,.14)}
.content-section{background:#fffefa;border:1px solid var(--border-default);border-radius:26px;padding:24px;box-shadow:var(--shadow-sm);margin-bottom:20px}.section-head{display:flex;align-items:center;justify-content:space-between;gap:14px;border-bottom:1px solid var(--border-subtle);padding-bottom:14px;margin-bottom:18px}.section-head h2{font-size:1.16rem;letter-spacing:-.035em;color:#17212b}.section-head span{font-size:.76rem;font-weight:800;color:var(--accent-500);text-transform:uppercase;letter-spacing:.07em;background:#eef4f5;border:1px solid var(--border-default);border-radius:999px;padding:5px 11px;white-space:nowrap}
.asset-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}.asset-card,.resource-list a{display:block;background:#f8f4ec;border:1px solid var(--border-default);border-radius:16px;padding:14px;transition:.18s ease}.asset-card:hover,.resource-list a:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm);background:#fff}.asset-card strong,.resource-list strong{display:block;color:#17212b;margin-bottom:6px}.asset-card small,.resource-list small{display:block;color:var(--text-secondary);font-family:var(--font-mono);font-size:.72rem;overflow-wrap:anywhere}.question-stack{display:grid;gap:14px}.question-card{display:grid;grid-template-columns:46px 1fr;gap:16px;background:linear-gradient(180deg,#fff,#f9f5ee);border:1px solid rgba(34,45,57,.11);border-radius:20px;padding:18px}.q-num{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:var(--gradient-primary);color:white;font-weight:900;box-shadow:0 10px 24px rgba(24,58,89,.16)}.q-type{font-size:.68rem;font-weight:800;color:var(--accent-500);text-transform:uppercase;letter-spacing:.1em;margin-bottom:6px}.q-body h3{font-size:1rem;line-height:1.55;color:#1f2933;letter-spacing:-.012em}.option-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.option-pill{background:#eef4f5;border:1px solid rgba(24,58,89,.12);border-radius:999px;padding:7px 11px;font-size:.82rem;color:#2f4050}.audio-stack{display:grid;gap:12px}.audio-row{display:flex;align-items:center;gap:14px;background:#f8f4ec;border:1px solid var(--border-default);border-radius:16px;padding:12px}.audio-row audio{width:min(520px,100%)}.learn-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px}.learn-gallery figure{overflow:hidden;border-radius:18px;border:1px solid var(--border-default);background:#f8f4ec}.learn-gallery img{width:100%;height:170px;object-fit:cover}.learn-gallery figcaption{padding:10px 12px;font-size:.76rem;color:var(--text-secondary)}.resource-list{display:grid;gap:10px}.note-panel{background:#f8f4ec;border:1px dashed rgba(34,45,57,.22);border-radius:18px;padding:18px;color:var(--text-secondary)}.reading-panel{white-space:pre-wrap;background:#f8f4ec;border:1px solid var(--border-default);border-radius:18px;padding:22px;color:#2f4050;line-height:1.85;font-size:.95rem;max-height:680px;overflow:auto}
@media(max-width:1180px){.learn-shell{grid-template-columns:1fr}.learn-curriculum{position:relative;top:0}.learn-hero{flex-direction:column;align-items:flex-start}.learn-actions{justify-content:flex-start}.learn-player-card,.learn-player-card video,.learn-player-card iframe{min-height:260px}}
@media(max-width:640px){.app-content:has(.learn-shell){padding:16px 12px 42px}.learn-hero,.content-section,.learn-curriculum{border-radius:20px;padding:18px}.learn-hero h1{font-size:1.55rem}.question-card{grid-template-columns:1fr}.q-num{width:38px;height:38px}.section-head{align-items:flex-start;flex-direction:column}.audio-row{align-items:flex-start;flex-direction:column}}


/* Learner page refinement after visual QA: wider video, cleaner Udemy hierarchy */
.app-content:has(.learn-shell){max-width:none;width:100%;padding:18px 22px 56px}.learn-shell{grid-template-columns:260px minmax(760px,1fr);gap:18px}.learn-curriculum{top:82px;padding:20px;border-radius:22px}.learn-main{max-width:1280px;width:100%}.learn-hero{padding:24px 28px;margin-bottom:16px}.learn-hero h1{font-size:clamp(1.8rem,2.8vw,3rem);max-width:1100px}.learn-hero p{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;max-width:1080px}.learn-player-card{min-height:clamp(430px,52vw,720px);border-radius:24px}.learn-player-card video,.learn-player-card iframe{min-height:clamp(430px,52vw,720px);object-fit:contain}.admin-assets{background:#fffefa;border:1px solid var(--border-default);border-radius:20px;margin:-4px 0 20px;box-shadow:var(--shadow-xs)}.admin-assets summary{color:var(--text-secondary);font-size:.82rem}.admin-assets[open] summary{color:var(--accent-500)}.admin-assets .asset-grid{padding:16px}.content-section{border-radius:22px}.question-card{grid-template-columns:40px 1fr;padding:16px}.q-num{width:40px;height:40px}.q-body h3{font-weight:650}.sidebar-status,.header-pill.disconnected{opacity:.55}@media(max-width:1280px){.learn-shell{grid-template-columns:1fr}.learn-main{max-width:none}.learn-curriculum{position:relative;top:0;display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.learn-curriculum h2,.learn-curriculum p,.learn-brand-mini{grid-column:1/-1}.learn-curriculum .btn{margin-top:0}}