:root {
    --bg-color: #0D0D0F;
    --sidebar-bg: #151517;
    --card-bg: #1a1a1c;
    --accent: #1A78FF;
    --accent-glow: rgba(26, 120, 255, 0.3);
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --danger: #ff4d4d;
    --success: #00D4B8;
}

body {
    margin: 0;
    font-family: 'Inter', -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    display: flex;
}

.sidebar {
    width: 250px;
    background-color: var(--sidebar-bg);
    height: 100vh;
    position: fixed;
    border-right: 1px solid #333;
}

.sidebar-header {
    padding: 2rem;
    text-align: center;
    border-bottom: 1px solid #333;
}

.sidebar-header h1 {
    font-size: 1.2rem;
    color: var(--accent);
    margin: 0;
}

.sidebar-nav {
    padding: 1rem 0;
}

.sidebar-nav a i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    padding: 1rem 2rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s;
}

.stat-card i {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 1rem;
    display: block;
}

.btn i {
    margin-right: 5px;
}

/* Modal styles for editing */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.8);
}

.modal-content {
    background-color: var(--card-bg);
    margin: 10% auto;
    padding: 2rem;
    border: 1px solid #333;
    width: 50%;
    border-radius: 8px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #333;
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}

.close {
    color: var(--text-secondary);
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: white;
}

.sidebar-nav a:hover, .sidebar-nav a.active {
    color: var(--text-primary);
    background: #222;
    border-left: 4px solid var(--accent);
}

.main-content {
    margin-left: 250px;
    padding: 2rem;
    flex: 1;
}

.card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    border: 1px solid #333;
}

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

.stat-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--accent);
}

.stat-card h3 {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.stat-card .value {
    font-size: 1.8rem;
    font-weight: bold;
    margin-top: 0.5rem;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #333;
}

th {
    color: var(--text-secondary);
    font-weight: normal;
}

.btn {
    padding: 0.5rem 1rem;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    text-decoration: none;
    display: inline-block;
}

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

.badge {
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
}

.badge-active { background: rgba(0, 212, 184, 0.2); color: var(--success); }
.badge-expired { background: rgba(255, 77, 77, 0.2); color: var(--danger); }