/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

/* Header Section */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem 0 1rem;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.header-content {
    margin-bottom: 1rem;
}

.title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 300;
}

.info-bar {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.75rem;
    font-size: 0.9rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

/* API Status */
.api-status-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
}

.api-status {
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.api-status.success {
    background: linear-gradient(135deg, #4ade80, #22c55e);
    color: white;
}

.api-status.error {
    background: linear-gradient(135deg, #f87171, #ef4444);
    color: white;
}

.status-icon {
    font-size: 1.2rem;
    margin-right: 0.75rem;
}

/* Main Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Input Panel */
.input-panel {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

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

.input-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: #374151;
    font-size: 1.1rem;
}

#prompts {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    resize: vertical;
    min-height: 200px;
    transition: border-color 0.3s ease;
}

#prompts:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Controls Row */
.controls-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    align-items: end;
}

/* Format Notice */
.format-notice {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: #f0f9ff;
    border: 2px solid #0ea5e9;
    border-radius: 12px;
    margin-bottom: 2rem;
    font-weight: 600;
    color: #0369a1;
}

.format-icon {
    font-size: 1.2rem;
    margin-right: 0.75rem;
}

.format-text {
    font-size: 1rem;
}

.control-group {
    display: flex;
    flex-direction: column;
}

.control-group label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #374151;
}

select {
    padding: 0.75rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    background: white;
    transition: border-color 0.3s ease;
}

select:focus {
    outline: none;
    border-color: #667eea;
}

/* Checkbox Styling */
.checkbox-group {
    display: flex;
    align-items: center;
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 500;
    color: #374151;
}

.checkbox-label input[type="checkbox"] {
    margin-right: 0.75rem;
    width: 18px;
    height: 18px;
    accent-color: #667eea;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 160px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: #f3f4f6;
    color: #374151;
    border: 2px solid #e5e7eb;
}

.btn-secondary:hover {
    background: #e5e7eb;
    transform: translateY(-1px);
}

.btn-download {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.download-icon {
    margin-right: 0.5rem;
    font-size: 1.2rem;
}

/* Image Count */
.image-count {
    text-align: center;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 12px;
    margin-top: 1rem;
    font-weight: 600;
    color: #374151;
    border: 2px solid #e2e8f0;
}

/* Progress Section */
.progress-section {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.progress-header h3 {
    color: #374151;
    font-size: 1.3rem;
}

.progress-text {
    font-weight: 600;
    color: #667eea;
}

.progress-bar-container {
    background: #e5e7eb;
    border-radius: 10px;
    height: 12px;
    overflow: hidden;
}

.progress-bar {
    background: linear-gradient(135deg, #667eea, #764ba2);
    height: 100%;
    width: 0%;
    transition: width 0.3s ease;
    border-radius: 10px;
}

/* Image Gallery */
.image-gallery {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.image-gallery h3 {
    color: #374151;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.image-card {
    background: #f8fafc;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.image-card:hover {
    transform: translateY(-4px);
}

.card-header {
    padding: 0.75rem 1rem;
    font-weight: 600;
    font-size: 0.9rem;
    border-bottom: 1px solid #e5e7eb;
}

.card-content {
    padding: 1rem;
}

.image-placeholder {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #f3f4f6;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.generated-image {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #e5e7eb;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 0.5rem;
}

.error-message {
    text-align: center;
    color: #dc2626;
}

.error-message p {
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.image-prompt {
    font-size: 0.9rem;
    color: #6b7280;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.image-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-download-single {
    background: #10b981;
    color: white;
    flex: 1;
}

.btn-download-single:hover {
    background: #059669;
}

.btn-retry {
    background: #f59e0b;
    color: white;
}

.btn-retry:hover {
    background: #d97706;
}

.status-generating {
    background: #fef3c7;
    color: #d97706;
}

.status-completed {
    background: #d1fae5;
    color: #059669;
}

.status-error {
    background: #fee2e2;
    color: #dc2626;
}

.status-retrying {
    background: #fef3c7;
    color: #d97706;
}

/* Download Section */
.download-section {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.download-container {
    max-width: 400px;
    margin: 0 auto;
}

.download-info {
    margin-top: 1rem;
    color: #6b7280;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .title {
        font-size: 2rem;
    }
    
    .controls-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .format-notice {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
    
    .format-icon {
        margin-right: 0;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .progress-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}

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

.btn-loading::after {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 0.5rem;
}

/* Fade In Animation */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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