:root {
    --bg-color: #0a0e14;
    --sidebar-bg: #111823;
    --card-bg: #1a222e;
    --primary-color: #00d2ff;
    --primary-hover: #0099cc;
    --text-color: #e1e7ef;
    --text-muted: #94a3b8;
    --border-color: #2e3c51;
    --danger: #ff4d4d;
    --success: #22c55e;
    --accent-orange: #ff9f43;
    --accent-gradient: linear-gradient(135deg, #00d2ff 0%, #3a7bd5 100%);
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-family);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Glassmorphism utility */
.glass {
    background: rgba(26, 34, 46, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Login Page Styles */
.login-container {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at top right, #1a222e 0%, #0a0e14 100%);
}

.login-card {
    width: 100%;
    max-width: 400px;
    padding: 2.5rem;
    border-radius: 1.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.brand-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.brand-logo h1 {
    font-size: 2rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    color: white;
    transition: all 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 210, 255, 0.2);
}

.btn {
    width: 100%;
    padding: 0.75rem;
    border: none;
    border-radius: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 210, 255, 0.3);
}

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

.sidebar {
    width: 280px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
}

.nav-links {
    list-style: none;
    margin-top: 3rem;
}

.nav-item {
    margin-bottom: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 0.75rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: all 0.2s;
}

.nav-link:hover, .nav-link.active {
    background: rgba(0, 210, 255, 0.1);
    color: var(--primary-color);
}

/* Tables & Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.data-table th {
    text-align: left;
    padding: 1rem;
    color: var(--text-muted);
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9375rem;
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-active { background: rgba(34, 197, 94, 0.2); color: var(--success); }
.status-inactive { background: rgba(255, 77, 77, 0.2); color: var(--danger); }

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    padding: 1.5rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 0.5rem;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.875rem;
}