:root {
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --success: #10b981;
  --warning: #f59e0b;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Inter', sans-serif;
}

body {
  min-height: 100vh;
  display: flex;
}

/* Glassmorphism Utilities */
.glass-panel {
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 16px;
}

.glass-card {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

/* Login Screen */
.overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  transition: opacity 0.3s;
}

.overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.login-card {
  width: 100%;
  max-width: 400px;
  padding: 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.glow-effect {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(99,102,241,0.2) 0%, transparent 70%);
  pointer-events: none;
}

.login-card h2 { margin-bottom: 8px; font-weight: 600; }
.login-card p { color: var(--text-muted); margin-bottom: 24px; font-size: 0.9rem; }

input {
  width: 100%;
  padding: 12px 16px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.2);
  color: white;
  margin-bottom: 16px;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s;
}
input:focus { border-color: var(--accent); }

button {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: white;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}
button:hover { background: var(--accent-hover); }
button:active { transform: scale(0.98); }

.error-text { color: var(--danger); font-size: 0.85rem; margin-top: 12px; height: 20px; }

.password-wrapper { position: relative; width: 100%; margin-bottom: 16px; }
.password-wrapper input { margin-bottom: 0; padding-right: 40px; }
.eye-btn { 
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%); 
  background: transparent; width: auto; padding: 4px; color: var(--text-muted); font-size: 1.2rem;
}
.eye-btn:hover { background: transparent; transform: translateY(-50%) scale(1.1); }
.eye-btn:active { transform: translateY(-50%) scale(0.9); }

/* Main Dashboard */
.dashboard-layout {
  display: flex;
  width: 100%;
  min-height: 100vh;
}
.dashboard-layout.hidden { display: none; }

.sidebar {
  width: 260px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  margin: 16px;
  height: calc(100vh - 32px);
}

.brand { margin-bottom: 40px; display: flex; align-items: center; gap: 12px; }
.brand h2 { font-size: 1.25rem; font-weight: 700; background: linear-gradient(to right, #fff, #94a3b8); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

nav { display: flex; flex-direction: column; gap: 8px; flex-grow: 1; }
.nav-item {
  background: transparent;
  color: var(--text-muted);
  text-align: left;
  padding: 12px 16px;
  border-radius: 8px;
  font-weight: 500;
  transition: all 0.2s;
}
.nav-item:hover { background: rgba(255,255,255,0.05); color: white; }
.nav-item.active { background: rgba(99,102,241,0.15); color: var(--accent); border-left: 3px solid var(--accent); border-radius: 0 8px 8px 0; }

.logout-container { margin-top: auto; }

.content {
  flex-grow: 1;
  padding: 32px 40px 32px 16px;
  overflow-y: auto;
  height: 100vh;
}

.tab-content { display: none; animation: fadeIn 0.3s ease; }
.tab-content.active { display: block; }

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

header { margin-bottom: 32px; }
h1 { font-size: 2rem; font-weight: 700; margin-bottom: 4px; }
.subtitle { color: var(--text-muted); }
.flex-between { display: flex; justify-content: space-between; align-items: flex-end; }

.btn-primary { width: auto; padding: 10px 20px; }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: var(--danger-hover); }
.btn-ghost { background: transparent; border: 1px solid var(--border-color); color: var(--text-main); }
.btn-ghost:hover { background: rgba(255,255,255,0.05); }

/* Stats Grid */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; margin-bottom: 32px; }
.stat-card { padding: 24px; }
.stat-card h3 { color: var(--text-muted); font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 12px; }
.stat-card .stat-value { font-size: 2.5rem; font-weight: 700; }
.stat-card.warning .stat-value { color: var(--warning); }

/* Tables */
.table-container { padding: 1px; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; text-align: left; }
th { padding: 16px 24px; color: var(--text-muted); font-size: 0.85rem; text-transform: uppercase; border-bottom: 1px solid var(--border-color); }
td { padding: 16px 24px; border-bottom: 1px solid rgba(255,255,255,0.05); font-size: 0.95rem; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.02); }

.badge { padding: 4px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 600; }
.badge.active { background: rgba(16,185,129,0.2); color: var(--success); }
.badge.inactive { background: rgba(239,68,68,0.2); color: var(--danger); }
.badge.warning { background: rgba(245,158,11,0.2); color: var(--warning); }

.action-btn { width: auto; padding: 6px 12px; font-size: 0.8rem; margin-right: 8px; }

/* Modals */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.6); display: flex; align-items: center; justify-content: center; z-index: 200; backdrop-filter: blur(4px); }
.modal-overlay.hidden { display: none; }
.modal-card { padding: 32px; width: 100%; max-width: 400px; }
.modal-card h3 { margin-bottom: 24px; }
.modal-actions { display: flex; gap: 12px; margin-top: 24px; }
.modal-actions button { flex: 1; }
select { width: 100%; padding: 12px 16px; border-radius: 8px; border: 1px solid var(--border-color); background: rgba(0,0,0,0.2); color: white; margin-bottom: 16px; outline: none; }
select option { background: var(--bg-color); }