:root {
    --primary: #2563eb;
    --secondary: #64748b;
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
    --background: #f8fafc;
    --card: #ffffff;
    --text: #1e293b;
    --border: #e2e8f0;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background);
    color: var(--text);
    margin: 0;
    padding: 20px;
}

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

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

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

.card {
    background: var(--card);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border);
}

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

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 5px;
}

.btn {
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background-color: #1d4ed8;
}

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

th {
    text-align: left;
    padding: 12px;
    background: #f1f5f9;
    border-bottom: 2px solid var(--border);
}

td {
    padding: 12px;
    border-bottom: 1px solid var(--border);
}

.status-badge {
    padding: 4px 8px;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-active {
    background: #dcfce7;
    color: #166534;
}

.status-late {
    background: #fee2e2;
    color: #991b1b;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: 12px;
    width: 500px;
    max-width: 90%;
}

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

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

.btn-outline:hover {
    background: #f1f5f9;
    color: var(--text);
}

.success {
    color: var(--success);
}

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