:root {
    --primary-color: #6c5ce7;
    --secondary-color: #a29bfe;
    --dark-color: #2d3436;
    --darker-color: #1e272e;
    --light-color: #dfe6e9;
    --lighter-color: #f5f6fa;
    --success-color: #00b894;
    --warning-color: #fdcb6e;
    --danger-color: #d63031;
    --info-color: #0984e3;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--darker-color);
    color: var(--light-color);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: var(--dark-color);
}

.login-container {
    width: 100%;
    max-width: 1200px;
    padding: 20px;
}

.login-box {
    background-color: var(--dark-color);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    padding: 30px;
    max-width: 400px;
    margin: 0 auto;
}

.login-box h1 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--primary-color);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #444;
    border-radius: 4px;
    background-color: #333;
    color: var(--light-color);
    font-size: 16px;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    width: 100%;
}

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

.alert {
    padding: 12px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.alert-error {
    background-color: var(--danger-color);
    color: white;
}

/* Dashboard Styles */
.dashboard {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background-color: var(--dark-color);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.stat-card h3 {
    margin-top: 0;
    color: var(--secondary-color);
    font-size: 18px;
}

.stat-card p {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 0;
    color: var(--light-color);
}

.charts-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

.chart-card {
    background-color: var(--dark-color);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.chart-card h3 {
    margin-top: 0;
    color: var(--secondary-color);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #444;
}

th {
    background-color: var(--dark-color);
    color: var(--secondary-color);
    font-weight: 600;
}

tr:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.status-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.status-badge.completed {
    background-color: var(--success-color);
    color: white;
}

.status-badge.missed {
    background-color: var(--danger-color);
    color: white;
}

.status-badge.cancelled {
    background-color: var(--warning-color);
    color: var(--dark-color);
}

/* Navigation */
header {
    background-color: var(--dark-color);
    padding: 15px 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 20px;
}

.nav-links a {
    color: var(--light-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.user-menu {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-menu img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

/* Responsive */
@media (max-width: 768px) {
    .charts-container {
        grid-template-columns: 1fr;
    }
    
    .stats-container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .stats-container {
        grid-template-columns: 1fr;
    }
}