body {
    background: #f6f8fa;
    font-family: Inter, system-ui, Segoe UI, Roboto, "Helvetica Neue", Arial, sans-serif;
}

.card {
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.06);
    border: none;
}

.section-title {
    font-weight: 600;
    color: #1f3d2d;
    border-bottom: 2px solid #28a745;
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.required:after {
    content: " *";
    color: #dc3545;
}

.form-control:invalid, .form-check-input:invalid {
    border-color: #dc3545;
}

.signature-note {
    font-size: .9rem;
    color: #6c757d;
}

.btn-success {
    background-color: #28a745;
    border-color: #28a745;
    padding: 0.75rem 2rem;
    font-weight: 600;
}

.btn-success:hover {
    background-color: #218838;
    border-color: #1e7e34;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.invalid-feedback {
    display: none;
}

.was-validated .form-control:invalid ~ .invalid-feedback,
.was-validated .form-check-input:invalid ~ .invalid-feedback {
    display: block;
}

/* Admin panel styles */
.table-responsive {
    border-radius: 10px;
    overflow: hidden;
}

.export-buttons .btn {
    margin: 0 5px;
}

.pagination {
    margin-bottom: 0;
}

/* Login page styles */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-card {
    width: 100%;
    max-width: 400px;
    border-radius: 15px;
}