/* ==========================================
   Contribute Page Specific Styles
   CSS for the user contribution form and file upload
   ========================================== */

/* Page Header Section */
.page-header {
    background: linear-gradient(135deg, 
        var(--primary-green) 0%, 
        var(--primary-green-light) 100%);
    color: var(--neutral-white);
    padding: var(--spacing-3xl) 0 var(--spacing-2xl) 0;
    text-align: center;
}

.header-content {
    max-width: 800px;
    margin: 0 auto;
}

.page-title {
    font-size: 3rem;
    color: var(--neutral-white);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.page-subtitle {
    font-size: 1.25rem;
    color: var(--accent-cream);
    line-height: 1.6;
    margin: 0;
}

/* Information Section */
.info-section {
    background-color: var(--neutral-light);
    padding: var(--spacing-3xl) 0;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.info-card {
    background-color: var(--neutral-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: transform var(--transition-normal);
    border-top: 4px solid var(--primary-green);
}

.info-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.info-icon {
    width: 60px;
    height: 60px;
    background-color: var(--primary-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg) auto;
    color: var(--neutral-white);
}

.info-icon .icon {
    width: 30px;
    height: 30px;
}

.info-title {
    font-size: 1.375rem;
    color: var(--primary-green);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.info-description {
    color: var(--neutral-dark);
    line-height: 1.6;
    margin: 0;
}

/* Form Section */
.form-section {
    padding: var(--spacing-3xl) 0;
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--neutral-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.form-header {
    background-color: var(--accent-cream);
    padding: var(--spacing-2xl);
    text-align: center;
    border-bottom: 1px solid rgba(45, 80, 22, 0.1);
}

.form-title {
    font-size: 2rem;
    color: var(--primary-green);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.form-subtitle {
    color: var(--neutral-dark);
    line-height: 1.6;
    margin: 0;
}

/* Form Styles */
.contribution-form {
    padding: var(--spacing-2xl);
}

.form-fieldset {
    border: 2px solid var(--neutral-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    background-color: var(--neutral-light);
}

.fieldset-legend {
    font-family: var(--font-primary);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-green);
    padding: 0 var(--spacing-md);
    background-color: var(--neutral-white);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-lg);
}

/* Form Rows for Side-by-Side Layout */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

/* Form Groups */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--neutral-dark);
    font-weight: 500;
    font-size: 0.9rem;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--neutral-gray);
    border-radius: var(--radius-sm);
    font-family: var(--font-secondary);
    font-size: 1rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    background-color: var(--neutral-white);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(45, 80, 22, 0.1);
}

.form-input:invalid,
.form-textarea:invalid,
.form-select:invalid {
    border-color: var(--error-red);
}

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

.form-help {
    display: block;
    margin-top: var(--spacing-xs);
    color: var(--neutral-gray);
    font-size: 0.875rem;
    line-height: 1.4;
}

/* File Upload Styles */
.file-upload-container {
    position: relative;
}

.file-input {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    z-index: 1;
}

.file-upload-area {
    border: 3px dashed var(--neutral-gray);
    border-radius: var(--radius-md);
    padding: var(--spacing-2xl);
    text-align: center;
    transition: all var(--transition-normal);
    background-color: var(--neutral-white);
    cursor: pointer;
}

.file-upload-area:hover,
.file-upload-area.dragover {
    border-color: var(--primary-green);
    background-color: var(--accent-cream);
}

.file-upload-area.dragover {
    transform: scale(1.02);
}

.upload-icon {
    width: 48px;
    height: 48px;
    color: var(--primary-green);
    margin-bottom: var(--spacing-md);
}

.upload-text {
    color: var(--neutral-dark);
}

.upload-primary {
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.upload-secondary {
    color: var(--neutral-gray);
    margin-bottom: var(--spacing-xs);
}

.upload-limit {
    font-size: 0.875rem;
    color: var(--neutral-gray);
}

/* File Preview */
.file-preview {
    border: 2px solid var(--primary-green);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    background-color: var(--accent-cream);
}

.preview-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.preview-icon {
    width: 32px;
    height: 32px;
    color: var(--primary-green);
    flex-shrink: 0;
}

.preview-details {
    flex: 1;
    min-width: 0;
}

.preview-name {
    display: block;
    font-weight: 500;
    color: var(--neutral-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.preview-size {
    display: block;
    font-size: 0.875rem;
    color: var(--neutral-gray);
}

.remove-file-btn {
    background: none;
    border: none;
    color: var(--error-red);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: background-color var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.remove-file-btn:hover {
    background-color: rgba(220, 53, 69, 0.1);
}

.remove-file-btn svg {
    width: 20px;
    height: 20px;
}

/* Checkbox Styles */
.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.form-checkbox {
    width: 18px;
    height: 18px;
    margin: 0;
    flex-shrink: 0;
    accent-color: var(--primary-green);
}

.checkbox-label {
    margin: 0;
    line-height: 1.5;
    cursor: pointer;
    color: var(--neutral-dark);
}

/* Form Actions */
.form-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--neutral-light);
}

.submit-btn {
    min-width: 200px;
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.submit-btn.loading {
    position: relative;
}

.submit-btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: var(--spacing-sm);
}

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

/* Status Section */
.status-section {
    padding: var(--spacing-xl) 0;
}

.status-message {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
}

.status-message.success {
    background-color: rgba(40, 167, 69, 0.1);
    border: 2px solid var(--success-green);
    color: var(--success-green);
}

.status-message.error {
    background-color: rgba(220, 53, 69, 0.1);
    border: 2px solid var(--error-red);
    color: var(--error-red);
}

.status-message.info {
    background-color: rgba(23, 162, 184, 0.1);
    border: 2px solid var(--info-blue);
    color: var(--info-blue);
}

.status-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-md) auto;
}

.status-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.status-description {
    margin: 0;
    line-height: 1.6;
}

/* FAQ Section */
.faq-section {
    background-color: var(--neutral-light);
    padding: var(--spacing-3xl) 0;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.faq-item {
    background-color: var(--neutral-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

.faq-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.faq-question {
    font-size: 1.125rem;
    color: var(--primary-green);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.faq-answer {
    color: var(--neutral-dark);
    line-height: 1.6;
    margin: 0;
}

/* Form Validation Styles */
.form-group.error .form-input,
.form-group.error .form-textarea,
.form-group.error .form-select {
    border-color: var(--error-red);
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.form-group.success .form-input,
.form-group.success .form-textarea,
.form-group.success .form-select {
    border-color: var(--success-green);
    box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.1);
}

.error-message {
    display: block;
    margin-top: var(--spacing-xs);
    color: var(--error-red);
    font-size: 0.875rem;
    font-weight: 500;
}

.success-message {
    display: block;
    margin-top: var(--spacing-xs);
    color: var(--success-green);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Progress Indicator */
.form-progress {
    margin-bottom: var(--spacing-xl);
}

.progress-bar {
    width: 100%;
    height: 6px;
    background-color: var(--neutral-light);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--primary-green);
    transition: width var(--transition-normal);
    border-radius: 3px;
}

.progress-text {
    text-align: center;
    margin-top: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--neutral-gray);
}

/* Responsive Design */

/* Mobile devices (up to 575px) */
@media (max-width: 575px) {
    .page-title {
        font-size: 2.25rem;
    }
    
    .page-subtitle {
        font-size: 1.125rem;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .form-container {
        margin: 0 var(--spacing-md);
        border-radius: var(--radius-md);
    }
    
    .form-header,
    .contribution-form {
        padding: var(--spacing-lg);
    }
    
    .form-fieldset {
        padding: var(--spacing-lg);
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .form-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .submit-btn,
    .reset-btn {
        width: 100%;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .file-upload-area {
        padding: var(--spacing-lg);
    }
    
    .upload-icon {
        width: 36px;
        height: 36px;
    }
    
    .upload-primary {
        font-size: 1rem;
    }
}

/* Small tablets (576px to 767px) */
@media (min-width: 576px) and (max-width: 767px) {
    .info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
}

/* Medium tablets (768px to 991px) */
@media (min-width: 768px) and (max-width: 991px) {
    .info-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .faq-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Large devices (992px and up) */
@media (min-width: 992px) {
    .page-title {
        font-size: 3.5rem;
    }
    
    .form-title {
        font-size: 2.25rem;
    }
}

/* Print styles */
@media print {
    .form-section {
        break-inside: avoid;
    }
    
    .form-fieldset {
        break-inside: avoid;
        border: 1px solid #000;
    }
    
    .file-upload-area,
    .form-actions {
        display: none;
    }
}

/* Animation for form submission */
@keyframes formSubmit {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(0.98);
    }
    100% {
        transform: scale(1);
    }
}

.form-container.submitting {
    animation: formSubmit 0.3s ease-in-out;
}

/* Drag and drop visual feedback */
.file-upload-area.drag-active {
    border-color: var(--primary-green);
    background-color: rgba(45, 80, 22, 0.05);
    border-style: solid;
}

.file-upload-area.drag-reject {
    border-color: var(--error-red);
    background-color: rgba(220, 53, 69, 0.05);
}

/* Accessibility improvements */
.form-input:focus-visible,
.form-textarea:focus-visible,
.form-select:focus-visible,
.form-checkbox:focus-visible {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

.file-upload-area:focus-within {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .info-card,
    .faq-item,
    .file-upload-area,
    .form-container {
        transition: none;
        animation: none;
    }
    
    .info-card:hover,
    .faq-item:hover {
        transform: none;
    }
    
    .file-upload-area.dragover {
        transform: none;
    }
    
    .submit-btn.loading::after {
        animation: none;
    }
}