* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background: #f4f4f4;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

nav {
    background: #293b6b;
    color: white;
    padding: 1rem;
    margin-bottom: 2rem;
    border-radius: 5px;
}

nav h1 {
    margin-bottom: 1rem;
}

nav ul {
    list-style: none;
}

nav ul li {
    display: inline;
    margin-right: 1rem;
}

nav ul li a {
    color: white;
    text-decoration: none;
}

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

.card {
    background: white;
    padding: 2rem;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.card h2 {
    margin-bottom: 1rem;
    color: #333;
}

.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: #293b6b;
    color: white;
    text-decoration: none;
    border-radius: 3px;
    margin-top: 1rem;
}

.btn:hover {
    background: #444;
}

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

table th,
table td {
    padding: 0.5rem;
    text-align: left;
    border: 1px solid #ddd;
}

table th {
    background: #f4f4f4;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #212529;
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    line-height: 1.5;
    color: #495057;
    background-color: #fff;
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
    border-color: #80bdff;
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.alert {
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 3px;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-danger {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    align-items: center;
    justify-content: center;
    z-index: 1050;
}

.modal-content {
    background: #fff;
    border-radius: 0.3rem;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    width: 90%;
    max-width: 600px;
    position: relative;
    animation: modalFade 0.3s ease-in-out;
}

.modal-header {
    padding: 1rem;
    border-bottom: 1px solid #dee2e6;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.25rem;
    color: #212529;
}

.modal-body {
    padding: 1rem;
    max-height: calc(100vh - 210px);
    overflow-y: auto;
}

.modal-footer {
    padding: 1rem;
    border-top: 1px solid #dee2e6;
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

.close {
    background: transparent;
    border: 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: #000;
    opacity: 0.5;
    cursor: pointer;
    padding: 0.5rem;
}

.close:hover {
    opacity: 0.75;
}

@keyframes modalFade {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

textarea {
    resize: vertical;
    min-height: 100px;
}

.btn-danger {
    background: #dc3545;
}

.btn-danger:hover {
    background: #c82333;
}