:root {
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #ec4899;
    --border: #334155;
    --success: #22c55e;
    --danger: #ef4444;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
}

.login-container {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
}

.login-card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    width: 100%;
    max-width: 400px;
    border: 1px solid var(--border);
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    background-color: #0f172a;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: white;
    margin-bottom: 1rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
}

/* Sidebar & Dashboard Layout */
.layout {
    display: flex;
    height: calc(100vh - 64px);
    margin-top: 64px;
    overflow: hidden;
}

.top-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    z-index: 1000;
}

.nav-left .nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-logo-img {
    height: 40px;
    width: auto;
}

.nav-logo-text {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary);
}

.nav-left .nav-brand {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 500;
}

.nav-clock {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.nav-right .user-profile {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-info {
    text-align: right;
    display: flex;
    flex-direction: column;
}

.user-role {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: 700;
}

.user-name {
    font-size: 0.875rem;
    font-weight: 600;
}

.user-avatar {
    width: 32px;
    height: 32px;
    background-color: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
}

.btn-logout {
    color: var(--text-muted);
    transition: color 0.2s;
    display: flex;
    align-items: center;
}

.btn-logout:hover {
    color: var(--danger);
}

.sidebar {
    width: 260px;
    background-color: var(--bg-card);
    border-right: 1px solid var(--border);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

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

.sidebar-nav {
    list-style: none;
    margin-top: 2rem;
    flex: 1;
}

.sidebar-nav li {
    margin-bottom: 0.5rem;
}

.sidebar-nav a {
    color: var(--text-muted);
    text-decoration: none;
    padding: 0.75rem 1rem;
    display: block;
    border-radius: 0.5rem;
    transition: all 0.2s;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--primary);
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: var(--bg-card);
    padding: 1.5rem;
    border-radius: 1rem;
    border: 1px solid var(--border);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

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

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

.table th {
    text-align: left;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-muted);
    font-weight: 600;
}

.table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border);
}

.badge {
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success {
    background-color: rgba(34, 197, 94, 0.2);
    color: #4ade80;
}

.badge-warning {
    background-color: rgba(234, 179, 8, 0.2);
    color: #facc15;
}