:root {
  --bg-dark: #080c14;
  --bg-card: rgba(15, 23, 42, 0.7);
  --border-glass: rgba(255, 255, 255, 0.08);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --accent-cyan: #38bdf8;
  --accent-green: #34d399;
  --accent-purple: #c084fc;
  --accent-rose: #f43f5e;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

body {
  background: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
}

/* Sidebar Navigation */
.sidebar {
  width: 280px;
  background: rgba(11, 15, 25, 0.95);
  border-right: 1px solid var(--border-glass);
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-glass);
  margin-bottom: 24px;
}

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 16px rgba(99, 102, 241, 0.4);
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  background: linear-gradient(135deg, #fff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 12px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.2s ease;
}

.nav-item:hover, .nav-item.active {
  background: rgba(99, 102, 241, 0.15);
  color: #fff;
  border: 1px solid rgba(99, 102, 241, 0.3);
}

/* Main Area */
.main-wrapper {
  flex: 1;
  margin-left: 280px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.header {
  height: 76px;
  border-bottom: 1px solid var(--border-glass);
  background: rgba(11, 15, 25, 0.7);
  backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  position: sticky;
  top: 0;
  z-index: 90;
}

.main-content {
  padding: 32px;
  flex: 1;
}

/* Glass Panels */
.glass-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(16px);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* Grids & Cards */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* Buttons & Inputs */
.btn {
  padding: 10px 20px;
  border-radius: 10px;
  border: none;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: #fff;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
}

.btn-secondary {
  background: rgba(30, 41, 59, 0.6);
  color: var(--text-main);
  border: 1px solid var(--border-glass);
}

.btn-danger {
  background: rgba(244, 63, 94, 0.15);
  color: #f43f5e;
  border: 1px solid rgba(244, 63, 94, 0.3);
}

.input-field {
  width: 100%;
  height: 46px;
  padding: 0 16px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  color: #fff;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s ease;
}

.input-field:focus {
  border-color: #818cf8;
}

/* Badges */
.badge {
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  display: inline-block;
}

.badge-info { background: rgba(56, 189, 248, 0.15); color: #38bdf8; border: 1px solid rgba(56, 189, 248, 0.3); }
.badge-success { background: rgba(52, 211, 153, 0.15); color: #34d399; border: 1px solid rgba(52, 211, 153, 0.3); }
.badge-warning { background: rgba(251, 191, 36, 0.15); color: #fbbf24; border: 1px solid rgba(251, 191, 36, 0.3); }
.badge-danger { background: rgba(244, 63, 94, 0.15); color: #f43f5e; border: 1px solid rgba(244, 63, 94, 0.3); }

/* Tables */
table { width: 100%; border-collapse: collapse; text-align: left; }
th { padding: 12px 16px; color: var(--text-muted); font-size: 0.78rem; border-bottom: 1px solid var(--border-glass); }
td { padding: 14px 16px; font-size: 0.88rem; border-bottom: 1px solid var(--border-glass); }

.spin { animation: spin 1s linear infinite; }
@keyframes spin { 100% { transform: rotate(360deg); } }