/* Modal Styles */
.modal-content {
    border: none;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    overflow: hidden;
}

.modal-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-bottom: none;
    padding: 1.5rem;
}

.modal-title {
    font-weight: 600;
    margin: 0;
    font-size: 1.25rem;
}

.modal-header .close {
    color: white;
    opacity: 0.8;
    font-size: 1.5rem;
    border: none;
    background: none;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.modal-header .close:hover {
    opacity: 1;
    background: rgba(255,255,255,0.2);
    transform: scale(1.1);
}

.modal-body {
    padding: 2rem;
    background: #f8f9fa;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #333;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
    box-sizing: border-box;
}

.form-control:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    transform: translateY(-1px);
}

.modal-footer {
    padding: 1.5rem 2rem;
    background: white;
    border-top: 1px solid #dee2e6;
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

.modal-footer .btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.85rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.modal-footer .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.btn-secondary {
    background-color: #6c757d;
    color: white;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

/* Alert Styles */
.alert {
    border: none;
    border-radius: 8px;
    padding: 1rem 1.5rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

.alert-success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    color: #155724;
    border-left: 4px solid #28a745;
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    color: #721c24;
    border-left: 4px solid #dc3545;
}

.alert-dismissible .close {
    color: inherit;
    opacity: 0.7;
    font-size: 1.25rem;
    padding: 0;
    background: none;
    border: none;
}

.alert-dismissible .close:hover {
    opacity: 1;
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
    margin-right: 0.5rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Form Validation */
.form-control.is-invalid {
    border-color: #dc3545;
}

.form-control.is-valid {
    border-color: #28a745;
}

.invalid-feedback {
    display: block;
    width: 100%;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: #dc3545;
}

.valid-feedback {
    display: block;
    width: 100%;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: #28a745;
}