:root {
    --primary: #1a73e8;
    --primary-dark: #0d47a1;
    --primary-light: #4fc3f7;
    --glass-bg: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(100, 180, 255, 0.18);
    --sidebar-width: 260px;
    --text-primary: #e8f0fe;
    --text-muted: rgba(232, 240, 254, 0.6);
    --success: #4ade80;
    --warning: #fbbf24;
    --danger: #f87171;
    --pending: #60a5fa;
}

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

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: linear-gradient(135deg, #0a1628 0%, #0f2744 40%, #1a3a5c 100%);
    min-height: 100vh;
    color: var(--text-primary);
}

/* Login Page */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.login-card {
    background: var(--glass-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 8px 32px rgba(0, 60, 150, 0.3);
}

.login-card h2 {
    color: var(--primary-light);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.login-card .subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

/* Layout */
.app-layout { display: flex; min-height: 100vh; }

.sidebar {
    width: var(--sidebar-width);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-right: 1px solid var(--glass-border);
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
}

.sidebar-brand {
    padding: 1.5rem;
    border-bottom: 1px solid var(--glass-border);
}

.sidebar-brand h3 {
    font-size: 1.1rem;
    color: var(--primary-light);
    font-weight: 600;
}

.sidebar-brand small {
    color: var(--text-muted);
    font-size: 0.75rem;
}

.sidebar-nav { flex: 1; padding: 1rem 0; overflow-y: auto; }

.nav-section {
    padding: 0.5rem 1.25rem;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.7rem 1.25rem;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
    background: rgba(26, 115, 232, 0.12);
    border-left-color: var(--primary);
}

.nav-link .icon { font-size: 1.1rem; width: 24px; text-align: center; }

.sidebar-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--glass-border);
}

.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: 1.5rem 2rem;
    min-height: 100vh;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.top-bar h1 { font-size: 1.5rem; font-weight: 600; }

.menu-toggle {
    display: none;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    cursor: pointer;
}

/* Cards */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 4px 24px rgba(0, 40, 100, 0.2);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    padding: 1.25rem;
    transition: transform 0.2s;
}

.stat-card:hover { transform: translateY(-2px); }

.stat-card .label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-card .value {
    font-size: 1.75rem;
    font-weight: 700;
    margin-top: 0.25rem;
    color: var(--primary-light);
}

.stat-card.success .value { color: var(--success); }
.stat-card.warning .value { color: var(--warning); }
.stat-card.danger .value { color: var(--danger); }

/* Forms */
.form-control, .form-select {
    background: rgba(255, 255, 255, 0.05) !important;
    border: 1px solid var(--glass-border) !important;
    color: var(--text-primary) !important;
    border-radius: 10px !important;
    padding: 0.6rem 0.9rem !important;
}

.form-control:focus, .form-select:focus {
    background: rgba(255, 255, 255, 0.08) !important;
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.2) !important;
    color: var(--text-primary) !important;
}

.form-control::placeholder { color: var(--text-muted) !important; }

.form-label { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 0.35rem; }

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
    border: none !important;
    border-radius: 10px !important;
    padding: 0.6rem 1.25rem !important;
    font-weight: 500 !important;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2196f3, var(--primary)) !important;
    transform: translateY(-1px);
}

.btn-outline-light {
    border-color: var(--glass-border) !important;
    color: var(--text-primary) !important;
    border-radius: 10px !important;
}

.btn-danger {
    background: rgba(248, 113, 113, 0.2) !important;
    border: 1px solid rgba(248, 113, 113, 0.4) !important;
    color: #f87171 !important;
    border-radius: 8px !important;
    padding: 0.3rem 0.65rem !important;
    font-size: 0.8rem !important;
}

.btn-danger:hover {
    background: rgba(248, 113, 113, 0.35) !important;
    color: #fff !important;
}

/* Table */
.table-wrapper { overflow-x: auto; }

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.data-table th {
    background: rgba(26, 115, 232, 0.15);
    color: var(--primary-light);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}

.data-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid rgba(100, 180, 255, 0.08);
    font-size: 0.9rem;
}

.data-table tr:hover td { background: rgba(26, 115, 232, 0.05); }

/* Badges */
.badge-status {
    display: inline-block;
    padding: 0.25rem 0.65rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: capitalize;
}

.badge-success { background: rgba(74, 222, 128, 0.15); color: var(--success); }
.badge-pending { background: rgba(96, 165, 250, 0.15); color: var(--pending); }
.badge-failed { background: rgba(248, 113, 113, 0.15); color: var(--danger); }
.badge-cancelled { background: rgba(251, 191, 36, 0.15); color: var(--warning); }

/* Alerts */
.alert-glass {
    background: rgba(26, 115, 232, 0.1);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.alert-glass.success { background: rgba(74, 222, 128, 0.1); border-color: rgba(74, 222, 128, 0.3); color: var(--success); }
.alert-glass.danger { background: rgba(248, 113, 113, 0.1); border-color: rgba(248, 113, 113, 0.3); color: var(--danger); }

/* Chart */
.chart-container {
    position: relative;
    height: 280px;
    margin-top: 1rem;
}

/* Pagination */
.pagination-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.page-link {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    text-decoration: none;
    font-size: 0.85rem;
}

.page-link:hover, .page-link.active {
    background: rgba(26, 115, 232, 0.2);
    border-color: var(--primary);
}

.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
    align-items: flex-end;
}

.filter-bar .form-group { flex: 1; min-width: 150px; }

/* Responsive */
@media (max-width: 992px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; padding: 1rem; }
    .menu-toggle { display: block; }
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 576px) {
    .stat-grid { grid-template-columns: 1fr; }
    .filter-bar { flex-direction: column; }
    .filter-bar .form-group { width: 100%; }
}

.overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
}

.overlay.active { display: block; }

.text-muted-custom { color: var(--text-muted) !important; }