:root {
    --bg-color: #0f172a;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --danger: #ef4444;
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background: var(--bg-color);
    background-image: radial-gradient(circle at top right, #1e293b 0%, #0f172a 100%);
    color: var(--text-primary);
    min-height: 100vh;
}

/* Glassmorphism Utilities */
.glass-container, .glass-card, .glass-nav {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

/* Navigation */
.glass-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
}

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

.user-badge {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Login Page */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-box {
    padding: 3rem;
    border-radius: 1rem;
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.logo {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.login-box h2 {
    margin-bottom: 2rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.input-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.input-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--glass-border);
    background: rgba(15, 23, 42, 0.5);
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.input-group input:focus {
    border-color: var(--accent);
}

/* Buttons */
.btn-primary {
    width: 100%;
    padding: 0.75rem;
    border: none;
    border-radius: 0.5rem;
    background: var(--accent);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

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

.btn-secondary {
    padding: 0.5rem 1rem;
    border: 1px solid var(--glass-border);
    border-radius: 0.5rem;
    background: transparent;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s;
}

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

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.alert-error {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.4);
    color: #fca5a5;
}

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

.dashboard-header {
    margin-bottom: 3rem;
}

.dashboard-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    letter-spacing: -1px;
}

.dashboard-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.metric-card {
    padding: 2rem;
    border-radius: 1rem;
}

.metric-card h3 {
    margin: 0 0 1.5rem 0;
    color: var(--text-secondary);
    font-weight: 500;
}

.metric-value {
    font-size: 3rem;
    font-weight: 700;
    margin-top: 1rem;
    text-align: right;
}

/* Progress Bars */
.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease-out;
}