:root {
    --bg-main: #0f172a;
    --bg-card: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --border: #334155;
    --radius: 12px;
    --font-family: 'Inter', system-ui, sans-serif;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: var(--font-family);
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--primary-hover);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.nav {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-main);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-muted);
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--text-main);
}

.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    margin: 0.5rem 0;
    background: linear-gradient(to right, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

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

input[type="text"], input[type="password"], input[type="email"], select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-main);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-main);
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    box-sizing: border-box;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

.btn {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    border: none;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

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

.btn:active {
    transform: scale(0.98);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-main);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
}

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

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.875rem;
}

tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge.success { background: rgba(16, 185, 129, 0.2); color: #34d399; }
.badge.danger { background: rgba(239, 68, 68, 0.2); color: #f87171; }
.badge.warning { background: rgba(245, 158, 11, 0.2); color: #fbbf24; }
.badge.info { background: rgba(59, 130, 246, 0.2); color: #60a5fa; }

/* Micro-animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

.login-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: radial-gradient(circle at top right, #1e293b, #0f172a);
}

.login-card {
    width: 100%;
    max-width: 400px;
    padding: 2.5rem;
    backdrop-filter: blur(10px);
    background: rgba(30, 41, 59, 0.7);
}