*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f0f2f5;
  --surface: #ffffff;
  --surface-glass: rgba(255,255,255,0.85);
  --primary: #6366f1;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --primary-glow: rgba(99,102,241,0.3);
  --accent: #06b6d4;
  --success: #10b981;
  --success-glow: rgba(16,185,129,0.2);
  --warning: #f59e0b;
  --danger: #ef4444;
  --danger-glow: rgba(239,68,68,0.2);
  --text: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border: #e8ecf1;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow: 0 4px 12px rgba(0,0,0,0.04);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.06);
  --shadow-lg: 0 16px 40px rgba(0,0,0,0.08);
  --shadow-xl: 0 24px 56px rgba(0,0,0,0.1);
  --transition-fast: 150ms cubic-bezier(0.4,0,0.2,1);
  --transition: 250ms cubic-bezier(0.4,0,0.2,1);
  --transition-slow: 400ms cubic-bezier(0.4,0,0.2,1);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

/* ==========================================================================
   CARDS
   ========================================================================== */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  padding: 24px;
  transition: all var(--transition);
  backdrop-filter: blur(10px);
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }
.card-glass {
  background: var(--surface-glass);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.3);
  box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 20px; border-radius: var(--radius-sm); font-size: 14px;
  font-weight: 600; cursor: pointer; border: none;
  transition: all var(--transition-fast); text-decoration: none; line-height: 1;
  position: relative; overflow: hidden;
}
.btn::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.1) 50%, transparent 60%);
  opacity: 0; transition: opacity 300ms;
}
.btn:hover::after { opacity: 1; }
.btn:active { transform: scale(0.96); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff; box-shadow: 0 4px 14px var(--primary-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px var(--primary-glow); }
.btn-success {
  background: linear-gradient(135deg, #059669, var(--success));
  color: #fff; box-shadow: 0 4px 14px var(--success-glow);
}
.btn-success:hover { transform: translateY(-2px); box-shadow: 0 6px 20px var(--success-glow); }
.btn-danger {
  background: linear-gradient(135deg, #dc2626, var(--danger));
  color: #fff; box-shadow: 0 4px 14px var(--danger-glow);
}
.btn-danger:hover { transform: translateY(-2px); box-shadow: 0 6px 20px var(--danger-glow); }
.btn-outline {
  background: var(--surface); color: var(--text-secondary);
  border: 1.5px solid var(--border); box-shadow: var(--shadow-sm);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: #f5f3ff; }
.btn-ghost { background: transparent; color: var(--text-secondary); }
.btn-ghost:hover { background: var(--bg); color: var(--text); }
.btn-sm { padding: 7px 14px; font-size: 12px; border-radius: var(--radius-xs); }
.btn-lg { padding: 14px 32px; font-size: 16px; border-radius: var(--radius); }

/* ==========================================================================
   INPUTS
   ========================================================================== */
.input, textarea, select {
  width: 100%; padding: 11px 16px; border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); font-size: 14px; color: var(--text);
  background: var(--surface); transition: all var(--transition-fast); outline: none;
  font-family: inherit;
}
.input:hover, textarea:hover, select:hover { border-color: var(--primary-light); }
.input:focus, textarea:focus, select:focus {
  border-color: var(--primary); box-shadow: 0 0 0 4px rgba(99,102,241,0.1);
}
.input::placeholder { color: var(--text-muted); }

/* ==========================================================================
   BADGES
   ========================================================================== */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 600;
  letter-spacing: 0.3px;
}
.badge-success { background: #ecfdf5; color: #059669; }
.badge-warning { background: #fffbeb; color: #d97706; }
.badge-danger { background: #fef2f2; color: #dc2626; }
.badge-info { background: #eff6ff; color: #2563eb; }
.badge-primary { background: #f5f3ff; color: var(--primary); }
.badge-dot::before { content: ''; width: 7px; height: 7px; border-radius: 50%; display: inline-block; animation: pulse-dot 2s infinite; }
.badge-success.badge-dot::before { background: var(--success); }
.badge-warning.badge-dot::before { background: var(--warning); }
.badge-danger.badge-dot::before { background: var(--danger); }
.badge-info.badge-dot::before { background: #3b82f6; }

@keyframes pulse-dot { 0%,100%{opacity:1} 50%{opacity:.5} }

/* ==========================================================================
   STAT CARDS
   ========================================================================== */
.stat-card {
  background: linear-gradient(135deg, var(--surface), var(--surface));
  border-radius: var(--radius); padding: 20px 24px;
  box-shadow: var(--shadow); border: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 10px;
  transition: all var(--transition); position: relative; overflow: hidden;
}
.stat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.stat-card::before {
  content: ''; position: absolute; top: -30px; right: -30px;
  width: 80px; height: 80px; border-radius: 50%; opacity: 0.08;
  transition: all var(--transition-slow);
}
.stat-card:hover::before { width: 120px; height: 120px; opacity: 0.12; }
.stat-card.accent-blue::before { background: #3b82f6; }
.stat-card.accent-green::before { background: var(--success); }
.stat-card.accent-yellow::before { background: var(--warning); }
.stat-card.accent-red::before { background: var(--danger); }
.stat-card.accent-purple::before { background: #8b5cf6; }
.stat-card.accent-indigo::before { background: var(--primary); }
.stat-card.accent-orange::before { background: #f97316; }
.stat-card .stat-icon { font-size: 28px; line-height: 1; position: relative; z-index: 1; }
.stat-card .stat-label { font-size: 11px; color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.8px; position: relative; z-index: 1; }
.stat-card .stat-value { font-size: 30px; font-weight: 800; color: var(--text); font-variant-numeric: tabular-nums; position: relative; z-index: 1; }

/* ==========================================================================
   TABLE
   ========================================================================== */
table { width: 100%; border-collapse: collapse; }
thead th {
  padding: 14px 18px; text-align: left; font-size: 11px; font-weight: 700;
  color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.6px;
  border-bottom: 2px solid var(--border); background: #fafbfc;
  position: sticky; top: 0; z-index: 1;
}
tbody td {
  padding: 14px 18px; font-size: 13px; border-bottom: 1px solid var(--border);
  color: var(--text); transition: background var(--transition-fast);
}
tbody tr { transition: all var(--transition-fast); }
tbody tr:hover { background: #f8fafc; }
tbody tr:last-child td { border-bottom: none; }

/* ==========================================================================
   PROGRESS BARS
   ========================================================================== */
.progress-bar { height: 8px; background: #f1f5f9; border-radius: 10px; overflow: hidden; }
.progress-bar .progress-fill { height: 100%; border-radius: 10px; transition: width 600ms cubic-bezier(0.4,0,0.2,1); }
.progress-fill.green { background: linear-gradient(90deg, #10b981, #34d399); }
.progress-fill.yellow { background: linear-gradient(90deg, #f59e0b, #fbbf24); }
.progress-fill.red { background: linear-gradient(90deg, #ef4444, #f87171); }
.progress-fill.blue { background: linear-gradient(90deg, #6366f1, #818cf8); }

/* ==========================================================================
   MODAL
   ========================================================================== */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(15,23,42,0.4); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center; z-index: 100;
  animation: fadeIn 200ms ease;
}
.modal-box {
  background: var(--surface); border-radius: var(--radius); padding: 32px;
  max-width: 90vw; box-shadow: var(--shadow-xl);
  animation: slideUp 300ms cubic-bezier(0.16,1,0.3,1);
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px) scale(0.97); } to { opacity: 1; transform: translateY(0) scale(1); } }

/* ==========================================================================
   TOAST / NOTIFICATIONS
   ========================================================================== */
.toast {
  position: fixed; top: 24px; right: 24px; z-index: 200;
  padding: 14px 22px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 500;
  box-shadow: var(--shadow-lg); animation: slideIn 300ms cubic-bezier(0.16,1,0.3,1);
  display: flex; align-items: center; gap: 8px; min-width: 280px;
}
.toast-success { background: linear-gradient(135deg,#059669,#10b981); color:#fff; }
.toast-error { background: linear-gradient(135deg,#dc2626,#ef4444); color:#fff; }
.toast-info { background: linear-gradient(135deg,#4f46e5,#6366f1); color:#fff; }
@keyframes slideIn { from { opacity:0; transform:translateX(120px) } to { opacity:1; transform:translateX(0) } }

/* ==========================================================================
   UTILITY
   ========================================================================== */
.empty-state { text-align: center; padding: 64px 20px; }
.empty-state .empty-icon { font-size: 56px; margin-bottom: 16px; filter: grayscale(1); opacity: 0.4; }
.empty-state .empty-title { font-size: 18px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.empty-state .empty-desc { font-size: 14px; color: var(--text-secondary); margin-bottom: 24px; }

.mono { font-family: 'SF Mono','Fira Code','Consolas',monospace; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }
.text-muted { color: var(--text-secondary); }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* Skeleton loading */
@keyframes shimmer { 0%{background-position:-200% 0} 100%{background-position:200% 0} }
.skeleton {
  background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 50%, #f1f5f9 75%);
  background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: var(--radius-xs);
}

/* Glow rings for important elements */
.glow-ring {
  box-shadow: 0 0 0 4px var(--primary-glow);
  animation: glow-pulse 2s infinite;
}
@keyframes glow-pulse { 0%,100%{box-shadow:0 0 0 4px var(--primary-glow)} 50%{box-shadow:0 0 0 8px rgba(99,102,241,0.08)} }

/* ==========================================================================
   ANIMATIONS - ENTRANCE
   ========================================================================== */
@keyframes fadeInUp { from { opacity:0; transform:translateY(24px) } to { opacity:1; transform:translateY(0) } }
@keyframes fadeInDown { from { opacity:0; transform:translateY(-16px) } to { opacity:1; transform:translateY(0) } }
@keyframes fadeInLeft { from { opacity:0; transform:translateX(-20px) } to { opacity:1; transform:translateX(0) } }
@keyframes fadeInRight { from { opacity:0; transform:translateX(20px) } to { opacity:1; transform:translateX(0) } }
@keyframes scaleIn { from { opacity:0; transform:scale(0.9) } to { opacity:1; transform:scale(1) } }
@keyframes scaleInBounce { 0%{opacity:0;transform:scale(0.8)} 60%{transform:scale(1.03)} 100%{opacity:1;transform:scale(1)} }
.anim-fade-up { animation: fadeInUp 500ms cubic-bezier(0.16,1,0.3,1) both; }
.anim-fade-down { animation: fadeInDown 400ms cubic-bezier(0.16,1,0.3,1) both; }
.anim-scale-in { animation: scaleInBounce 400ms cubic-bezier(0.16,1,0.3,1) both; }
.anim-stagger > * { opacity: 0; animation: fadeInUp 400ms cubic-bezier(0.16,1,0.3,1) forwards; }
.anim-stagger > *:nth-child(1) { animation-delay: 0ms; }
.anim-stagger > *:nth-child(2) { animation-delay: 60ms; }
.anim-stagger > *:nth-child(3) { animation-delay: 120ms; }
.anim-stagger > *:nth-child(4) { animation-delay: 180ms; }
.anim-stagger > *:nth-child(5) { animation-delay: 240ms; }
.anim-stagger > *:nth-child(6) { animation-delay: 300ms; }
.anim-stagger > *:nth-child(7) { animation-delay: 360ms; }
.anim-stagger > *:nth-child(8) { animation-delay: 420ms; }
.anim-stagger > *:nth-child(n+9) { animation-delay: 480ms; }

/* Hover interaction effects */
.hover-lift { transition: all 300ms cubic-bezier(0.16,1,0.3,1); }
.hover-lift:hover { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(0,0,0,0.08); }
.hover-glow { transition: all 300ms; }
.hover-glow:hover { box-shadow: 0 0 0 4px rgba(99,102,241,0.15); }
.hover-scale { transition: transform 200ms cubic-bezier(0.16,1,0.3,1); }
.hover-scale:hover { transform: scale(1.03); }

/* Ripple effect */
.ripple { position: relative; overflow: hidden; }
.ripple:active::after { background-size: 1000px 1000px; opacity: 1; transition: 0s; }

/* Spinner */
@keyframes spin { to { transform:rotate(360deg) } }
.spinner { width: 20px; height: 20px; border: 2.5px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin 600ms linear infinite; display: inline-block; }

/* Shake on error */
@keyframes shake { 0%,100%{transform:translateX(0)} 20%{transform:translateX(-6px)} 40%{transform:translateX(6px)} 60%{transform:translateX(-4px)} 80%{transform:translateX(4px)} }
.shake { animation: shake 400ms ease; }

/* Tooltip */
[data-tooltip] { position: relative; }
[data-tooltip]::after { content: attr(data-tooltip); position: absolute; bottom: calc(100% + 8px); left: 50%; transform: translateX(-50%) scale(0.8); background: #0f172a; color: #fff; padding: 4px 10px; border-radius: 6px; font-size: 11px; white-space: nowrap; opacity: 0; pointer-events: none; transition: all 150ms; }
[data-tooltip]:hover::after { opacity: 1; transform: translateX(-50%) scale(1); }

/* Pulse glow ring */
@keyframes glow-pulse { 0%,100%{box-shadow:0 0 0 4px var(--primary-glow)} 50%{box-shadow:0 0 0 12px rgba(99,102,241,0.04)} }
.glow-ring { box-shadow:0 0 0 4px var(--primary-glow); animation:glow-pulse 2s infinite; }

/* Live dot indicator */
.live-dot { width:8px;height:8px;border-radius:50%;background:var(--success);display:inline-block;animation:pulse-dot 2s infinite; }
@keyframes pulse-dot { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.4;transform:scale(1.5)} }