/* Auction Form Styles */
:root {
    --primary-color: #2c5aa0;
    --secondary-color: #f8f9fa;
    --accent-color: #28a745;
    --danger-color: #dc3545;
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding: 40px 0;
}

.container {
    max-width: 900px;
}

.form-container {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 40px;
    margin: 20px 0;
}

.form-title {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 10px;
}

.logo-placeholder {
    background-color: #f8f9fa;
    border: 2px dashed #dee2e6;
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 500;
    color: #6c757d;
    display: inline-block;
}

.form-description {
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.section-header {
    margin: 30px 0 20px 0;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--secondary-color);
}

.section-header h3 {
    color: var(--primary-color);
    font-weight: 600;
    margin: 0;
}

.form-label {
    font-weight: 600;
    color: #495057;
    margin-bottom: 8px;
}

.form-label.required::after {
    content: ' *';
    color: var(--danger-color);
}

.form-control {
    border: 2px solid #e9ecef;
    border-radius: var(--border-radius);
    padding: 12px 15px;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(44, 90, 160, 0.25);
}

/* Show red border only after form submission if field is invalid */
.was-validated .form-control:invalid {
    border-color: var(--danger-color);
}

.form-text {
    color: #6c757d;
    font-size: 0.875rem;
    margin-top: 5px;
}

.input-group-text {
    background-color: var(--secondary-color);
    border: 2px solid #e9ecef;
    font-weight: 600;
}

.submit-btn {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1e3c72 100%);
    border: none;
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    min-width: 200px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(44, 90, 160, 0.3);
    background: linear-gradient(135deg, #1e3c72 0%, var(--primary-color) 100%);
}

.submit-btn:disabled {
    transform: none;
    opacity: 0.7;
}

.alert {
    border-radius: var(--border-radius);
    border: none;
    padding: 20px;
    margin: 20px 0;
    font-size: 1rem;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border-left: 4px solid var(--accent-color);
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border-left: 4px solid var(--danger-color);
}

/* File input styling */
.form-control[type="file"] {
    padding: 8px 12px;
}

.form-control[type="file"]::-webkit-file-upload-button {
    background: var(--secondary-color);
    border: 1px solid #dee2e6;
    border-radius: 4px;
    padding: 8px 12px;
    margin-right: 10px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.form-control[type="file"]::-webkit-file-upload-button:hover {
    background: #e9ecef;
}

/* Responsive design */
@media (max-width: 768px) {
    .form-container {
        padding: 20px;
        margin: 10px;
    }
    
    .form-title {
        font-size: 1.5rem;
    }
    
    .submit-btn {
        width: 100%;
        padding: 15px;
    }
}

/* Loading animation */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.fa-spinner.fa-spin {
    animation: spin 1s linear infinite;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #1e3c72;
}