@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');
    
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  /* Premium Dark Glass Theme Variables */
  --bg-primary: #0a0a0f;
  --bg-secondary: rgba(20, 20, 30, 0.7);
  --bg-card: rgba(25, 25, 40, 0.6);
  --bg-input: rgba(15, 15, 25, 0.8);
  --border: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.15);
  
  --text-primary: #f0f0f5;
  --text-secondary: #9ea0b5;
  --text-muted: #6e7085;
  
  --accent: #00f0ff;
  --accent-hover: #33f5ff;
  --accent-glow: rgba(0, 240, 255, 0.3);
  
  --success: #00ff88;
  --success-bg: rgba(0, 255, 136, 0.15);
  --warning: #ffb800;
  --warning-bg: rgba(255, 184, 0, 0.15);
  --danger: #ff3366;
  --danger-bg: rgba(255, 51, 102, 0.15);
  --info: #00aaff;
  
  --gradient-1: linear-gradient(135deg, #00f0ff, #0055ff);
  --gradient-2: linear-gradient(135deg, #00ff88, #00aa55);
  --gradient-3: linear-gradient(135deg, #ffb800, #ff5500);
  --gradient-4: linear-gradient(135deg, #ff3366, #aa00ff);
  
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px rgba(0, 240, 255, 0.15);
  
  --radius: 16px;
  --radius-sm: 10px;
  --glass-blur: blur(16px);
}

body {
  font-family: 'Outfit', sans-serif;
  background: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(0, 240, 255, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 85% 30%, rgba(170, 0, 255, 0.08) 0%, transparent 50%);
  background-attachment: fixed;
  color: var(--text-primary);
  min-height: 100vh;
}

/* ===== LOGIN ===== */
.login-overlay {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(10, 10, 15, 0.8); backdrop-filter: var(--glass-blur);
  display: flex; align-items: center; justify-content: center;
  z-index: 9999;
}
.login-card {
  background: var(--bg-card); backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border); border-radius: 24px;
  padding: 48px; width: 100%; max-width: 420px;
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  text-align: center;
}
.login-card h1 { font-size: 32px; margin-bottom: 8px; background: var(--gradient-1); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.login-card p { color: var(--text-secondary); margin-bottom: 32px; font-weight: 300; }
.login-card .input-group { margin-bottom: 20px; text-align: left; }
.login-card label { display: block; font-size: 13px; color: var(--text-secondary); margin-bottom: 8px; font-weight: 500; text-transform: uppercase; letter-spacing: 1px; }
.login-card input {
  width: 100%; padding: 14px 16px; background: var(--bg-input); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary); font-size: 15px; outline: none;
  transition: all 0.3s;
}
.login-card input:focus { border-color: var(--accent); box-shadow: 0 0 15px var(--accent-glow); background: rgba(0,0,0,0.4); }
.login-card .login-btn {
  width: 100%; padding: 16px; background: var(--gradient-1); border: none;
  border-radius: var(--radius-sm); color: white; font-size: 16px; font-weight: 700;
  cursor: pointer; margin-top: 12px; transition: all 0.3s; text-transform: uppercase; letter-spacing: 1px;
}
.login-card .login-btn:hover { transform: translateY(-3px); box-shadow: 0 10px 25px var(--accent-glow); }
.login-error { color: var(--danger); font-size: 14px; margin-top: 16px; display: none; font-weight: 500; }

/* ===== LAYOUT ===== */
.app { display: none; }
.sidebar {
  position: fixed; left: 0; top: 0; width: 280px; height: 100vh;
  background: var(--bg-secondary); backdrop-filter: var(--glass-blur);
  border-right: 1px solid var(--border); padding: 32px 0; overflow-y: auto; z-index: 100;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 4px 0 24px rgba(0,0,0,0.2);
}
.sidebar::-webkit-scrollbar { width: 6px; }
.sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 10px; }

.sidebar .logo {
  padding: 0 28px; margin-bottom: 40px; font-size: 24px; font-weight: 800;
  background: var(--gradient-1); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  display: flex; flex-direction: column; line-height: 1.2;
}
.sidebar .logo small { font-size: 12px; font-weight: 400; -webkit-text-fill-color: var(--text-secondary); margin-top: 4px; letter-spacing: 0.5px; }

.nav-item {
  display: flex; align-items: center; gap: 14px; padding: 14px 28px; cursor: pointer; color: var(--text-secondary);
  transition: all 0.3s; font-size: 15px; font-weight: 500; border-left: 3px solid transparent; margin: 4px 0;
}
.nav-item:hover { background: rgba(255, 255, 255, 0.03); color: var(--text-primary); padding-left: 32px; }
.nav-item.active { background: linear-gradient(90deg, rgba(0, 240, 255, 0.1) 0%, transparent 100%); color: var(--accent); border-left-color: var(--accent); }
.nav-item .icon { font-size: 20px; width: 24px; text-align: center; opacity: 0.8; transition: transform 0.3s; }
.nav-item:hover .icon { transform: scale(1.1); }
.nav-divider { height: 1px; background: var(--border); margin: 20px 28px; }

.main-content {
  margin-left: 280px; padding: 40px; min-height: 100vh;
}
.page-header {
  display: flex; justify-content: space-between; align-items: center; margin-bottom: 36px;
}
.page-header h2 { font-size: 28px; font-weight: 700; letter-spacing: -0.5px; display: flex; align-items: center; gap: 12px; }
.page-header .subtitle { color: var(--text-secondary); font-size: 15px; margin-top: 6px; }

/* ===== CARDS & STATS ===== */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; margin-bottom: 36px; }
.stat-card {
  background: var(--bg-card); backdrop-filter: var(--glass-blur); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; position: relative; overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.stat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow), var(--shadow-glow); border-color: var(--border-light); }
.stat-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; opacity: 0.8; }
.stat-card:nth-child(1)::before { background: var(--gradient-1); }
.stat-card:nth-child(2)::before { background: var(--gradient-2); }
.stat-card:nth-child(3)::before { background: var(--gradient-3); }
.stat-card:nth-child(4)::before { background: var(--gradient-4); }

.stat-card .stat-icon { font-size: 36px; margin-bottom: 16px; filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3)); }
.stat-card .stat-label { color: var(--text-secondary); font-size: 14px; font-weight: 500; margin-bottom: 10px; text-transform: uppercase; letter-spacing: 1px; }
.stat-card .stat-value { font-size: 32px; font-weight: 700; letter-spacing: -1px; }
.stat-card .stat-sub { font-size: 13px; color: var(--text-secondary); margin-top: 6px; }

/* ===== GENERIC CARDS ===== */
.card {
  background: var(--bg-card); backdrop-filter: var(--glass-blur); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; margin-bottom: 32px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}
.card-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 24px 28px; border-bottom: 1px solid var(--border); background: rgba(0,0,0,0.2);
}
.card-header h3 { font-size: 18px; font-weight: 600; }
.card-body { padding: 0; }
.card-body.padded { padding: 28px; }

/* ===== TABLES ===== */
table { width: 100%; border-collapse: separate; border-spacing: 0; }
thead th {
  padding: 16px 20px; text-align: left; font-size: 13px; font-weight: 600;
  color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1px;
  border-bottom: 1px solid var(--border); background: rgba(0,0,0,0.3);
}
tbody td {
  padding: 16px 20px; font-size: 14px; border-bottom: 1px solid rgba(255,255,255,0.05);
}
tbody tr { transition: all 0.2s; }
tbody tr:hover { background: rgba(255,255,255,0.03); transform: scale(1.002); }
tbody tr:last-child td { border-bottom: none; }

/* ===== BUTTONS ===== */
.btn {
  padding: 10px 20px; border: none; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 600; cursor: pointer;
  transition: all 0.3s; display: inline-flex; align-items: center; gap: 8px;
  font-family: 'Outfit', sans-serif;
}
.btn-primary { background: var(--gradient-1); color: #fff; box-shadow: 0 4px 15px rgba(0, 85, 255, 0.3); }
.btn-primary:hover { box-shadow: 0 6px 20px rgba(0, 240, 255, 0.4); transform: translateY(-2px); filter: brightness(1.1); }
.btn-success { background: var(--success); color: #000; box-shadow: 0 4px 15px rgba(0, 255, 136, 0.2); }
.btn-success:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0, 255, 136, 0.4); }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { box-shadow: 0 4px 15px rgba(255, 51, 102, 0.3); transform: translateY(-2px); }
.btn-warning { background: var(--warning); color: #000; }
.btn-warning:hover { box-shadow: 0 4px 15px rgba(255, 184, 0, 0.3); transform: translateY(-2px); }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-outline { background: transparent; border: 1px solid var(--border-light); color: var(--text-primary); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: rgba(0, 240, 255, 0.05); }

/* ===== BADGES ===== */
.badge {
  display: inline-block; padding: 6px 12px; border-radius: 20px;
  font-size: 12px; font-weight: 600; letter-spacing: 0.5px;
}
.badge-success { background: var(--success-bg); color: var(--success); border: 1px solid rgba(0, 255, 136, 0.2); }
.badge-warning { background: var(--warning-bg); color: var(--warning); border: 1px solid rgba(255, 184, 0, 0.2); }
.badge-danger { background: var(--danger-bg); color: var(--danger); border: 1px solid rgba(255, 51, 102, 0.2); }
.badge-info { background: rgba(0, 170, 255, 0.15); color: var(--info); border: 1px solid rgba(0, 170, 255, 0.2); }
.badge-primary { background: rgba(0, 240, 255, 0.15); color: var(--accent); border: 1px solid rgba(0, 240, 255, 0.2); }

/* ===== FORMS ===== */
.form-group { margin-bottom: 24px; }
.form-group label { display: block; font-size: 14px; color: var(--text-secondary); margin-bottom: 8px; font-weight: 500; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 14px 18px; background: rgba(0,0,0,0.3); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary); font-size: 15px;
  font-family: 'Outfit', sans-serif; outline: none; transition: all 0.3s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-glow); background: rgba(0,0,0,0.5);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }

/* ===== SEARCH BAR ===== */
.search-bar { display: flex; gap: 16px; margin-bottom: 24px; }
.search-bar input, .search-bar select {
  flex: 1; padding: 12px 18px; background: rgba(0,0,0,0.3); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary); font-size: 15px; outline: none;
}
.search-bar input:focus { border-color: var(--accent); box-shadow: 0 0 10px rgba(0,240,255,0.2); }

/* ===== PAGINATION ===== */
.pagination {
  display: flex; justify-content: center; align-items: center; gap: 8px;
  padding: 20px; border-top: 1px solid var(--border);
}
.pagination button {
  padding: 8px 14px; background: rgba(0,0,0,0.3); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text-primary); cursor: pointer; font-size: 14px; font-weight: 500;
  transition: all 0.2s;
}
.pagination button:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.pagination button.active { background: var(--gradient-1); color: white; border-color: transparent; }
.pagination button:disabled { opacity: 0.3; cursor: not-allowed; transform: none; }

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.7); backdrop-filter: var(--glass-blur);
  display: none; align-items: center; justify-content: center; z-index: 1000;
  opacity: 0; transition: opacity 0.3s;
}
.modal-overlay.show { display: flex; opacity: 1; }
.modal {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); width: 100%; max-width: 550px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.1);
  max-height: 90vh; overflow-y: auto; transform: translateY(20px); transition: transform 0.3s;
}
.modal-overlay.show .modal { transform: translateY(0); }
.modal-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 24px 28px; border-bottom: 1px solid var(--border); background: rgba(0,0,0,0.2);
}
.modal-header h3 { font-size: 18px; font-weight: 600; }
.modal-close {
  background: none; border: none; color: var(--text-secondary); cursor: pointer;
  font-size: 24px; transition: color 0.2s; display: flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 50%;
}
.modal-close:hover { color: var(--danger); background: rgba(255,51,102,0.1); }
.modal-body { padding: 28px; }
.modal-footer { padding: 20px 28px; border-top: 1px solid var(--border); display: flex; gap: 16px; justify-content: flex-end; background: rgba(0,0,0,0.2); }

/* ===== TOAST ===== */
.toast-container { position: fixed; top: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 12px; }
.toast {
  padding: 16px 24px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 500;
  animation: slideIn 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  box-shadow: 0 10px 30px rgba(0,0,0,0.3); backdrop-filter: blur(10px);
  display: flex; align-items: center; gap: 12px;
}
.toast-success { background: rgba(0, 255, 136, 0.15); border: 1px solid rgba(0, 255, 136, 0.4); color: #00ff88; }
.toast-error { background: rgba(255, 51, 102, 0.15); border: 1px solid rgba(255, 51, 102, 0.4); color: #ff3366; }
@keyframes slideIn { from { transform: translateX(120%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ===== UTILS & RESPONSIVE ===== */
.page { display: none; animation: fadeIn 0.4s ease; }
.page.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.loading { text-align: center; padding: 60px; color: var(--text-secondary); }
.spinner { display: inline-block; width: 40px; height: 40px; border: 3px solid rgba(255,255,255,0.1); border-top-color: var(--accent); border-radius: 50%; animation: spin 1s cubic-bezier(0.5, 0, 0.5, 1) infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.empty-state { text-align: center; padding: 80px 20px; color: var(--text-secondary); }
.empty-state .icon { font-size: 56px; margin-bottom: 20px; filter: drop-shadow(0 4px 10px rgba(0,0,0,0.5)); opacity: 0.7; }
.empty-state p { font-size: 15px; max-width: 400px; margin: 0 auto; line-height: 1.6; }

.mobile-toggle {
  display: none; position: fixed; top: 16px; left: 16px; z-index: 101;
  background: var(--gradient-1); border: none; color: white;
  width: 44px; height: 44px; border-radius: 12px; cursor: pointer; font-size: 20px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; padding: 20px; padding-top: 80px; }
  .stats-grid { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
  .mobile-toggle { display: block !important; }
}

/* Scrollbar global */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: rgba(0,0,0,0.2); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.3); }