/* ========================================
   Diaper Pack Image Generator - Styles
   Modern Dark Theme with Glassmorphism
======================================== */

:root {
    /* Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-glass: rgba(255, 255, 255, 0.05);
    --bg-glass-hover: rgba(255, 255, 255, 0.08);

    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6a6a7a;

    --accent-primary: #7c3aed;
    --accent-secondary: #a855f7;
    --accent-gradient: linear-gradient(135deg, #7c3aed 0%, #a855f7 50%, #ec4899 100%);

    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;

    --border-color: rgba(255, 255, 255, 0.1);
    --border-glow: rgba(124, 58, 237, 0.5);

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(124, 58, 237, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;
}

/* Reset & Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(124, 58, 237, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(236, 72, 153, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

/* App Container */
.app-container {
    max-width: 1800px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    text-align: center;
    padding: var(--spacing-xl) 0;
    margin-bottom: var(--spacing-lg);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.logo-icon {
    font-size: 2.5rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.logo h1 {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 300;
}

/* Main Content Layout */
.main-content {
    display: grid;
    grid-template-columns: 320px 1fr 280px;
    gap: var(--spacing-lg);
    flex: 1;
}

/* Panels Base Style */
.control-panel,
.gallery-panel {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    height: fit-content;
    position: sticky;
    top: var(--spacing-lg);
}

.panel-section {
    margin-bottom: var(--spacing-xl);
}

.panel-section:last-child {
    margin-bottom: 0;
}

.panel-section h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.panel-section .description {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
}

/* Folder Selector */
.folder-selector {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.folder-selector input {
    flex: 1;
    min-width: 120px;
    max-width: 100%;
}

.folder-selector input {
    flex: 1;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
    font-size: 0.875rem;
}

.folder-selector input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.2);
}

.hint {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* API Selector */
.api-selector {
    margin-bottom: var(--spacing-sm);
}

.select-input {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-family: inherit;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23a0a0b0' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
}

.select-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.2);
}

.select-input option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.api-key-section {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    animation: fadeIn 0.3s ease;
}

.text-input {
    flex: 1;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-family: inherit;
}

.text-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.2);
}

.text-input::placeholder {
    color: var(--text-muted);
}

/* Text Input Section for Variants */
.text-input-section {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.text-input-section label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.text-area-input {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-family: inherit;
    resize: vertical;
    min-height: 60px;
}

.text-area-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.2);
}

.text-area-input::placeholder {
    color: var(--text-muted);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: var(--shadow-sm), 0 0 20px rgba(124, 58, 237, 0.3);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md), 0 0 30px rgba(124, 58, 237, 0.4);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-glass-hover);
    border-color: var(--accent-primary);
}

.btn-success {
    background: linear-gradient(135deg, #059669 0%, #10b981 100%);
    color: white;
}

.btn-success:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md), 0 0 20px rgba(16, 185, 129, 0.3);
}

.btn-accent {
    background: linear-gradient(135deg, #ec4899 0%, #f472b6 100%);
    color: white;
}

.btn-accent:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md), 0 0 20px rgba(236, 72, 153, 0.3);
}

.btn-danger {
    background: linear-gradient(135deg, #dc2626 0%, #ef4444 100%);
    color: white;
}

.btn-large {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1rem;
}

/* Generation Options & Variant Options */
.generation-options,
.variant-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

/* Checkbox Option Styling */
.checkbox-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-sm) var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: background 0.2s ease;
    font-size: 0.875rem;
}

.checkbox-option:hover {
    background: rgba(255, 255, 255, 0.05);
}

.checkbox-option input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    min-width: 18px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-tertiary);
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.checkbox-option input[type="checkbox"]:checked {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

.checkbox-option input[type="checkbox"]:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.checkbox-option .checkmark {
    display: none;
}

.checkbox-option span:last-child {
    color: var(--text-secondary);
    line-height: 1.3;
}

.btn-small {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
}

.btn-icon {
    font-size: 1.2em;
}

/* Checkbox Options */
.variant-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.checkbox-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.checkbox-option:hover {
    background: var(--bg-glass-hover);
}

.checkbox-option input {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.checkbox-option input:checked+.checkmark {
    background: var(--accent-gradient);
    border-color: var(--accent-primary);
}

.checkbox-option input:checked+.checkmark::after {
    content: '✓';
    color: white;
    font-size: 12px;
    font-weight: bold;
}

/* Image Display Section */
.image-display {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    width: 100%;
}

/* Section Header */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.section-header h2 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
}

/* Base Image Section */
.base-image-section {
    background: var(--bg-glass);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: var(--spacing-lg);
}

.base-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.base-image-container {
    position: relative;
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    aspect-ratio: 1;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.base-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* Variants Section */
.variants-section {
    background: var(--bg-glass);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: var(--spacing-lg);
    animation: fadeIn 0.3s ease;
}

.batch-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Variants Grid */
.variants-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--spacing-md);
    min-height: 200px;
}

.batch-results-grid .placeholder {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    color: var(--text-secondary);
}

/* Batch Image Item */
.batch-image-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    border: 2px solid var(--border-color);
    transition: all var(--transition-normal);
    background: var(--bg-tertiary);
}

.batch-image-item:hover {
    border-color: var(--accent-primary);
    transform: scale(1.02);
    box-shadow: var(--shadow-glow);
}

.batch-image-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.batch-image-item .image-loading {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
}

.batch-image-item .image-number {
    position: absolute;
    top: 8px;
    left: 8px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

/* Number Input */
.input-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.input-group label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.number-input {
    width: 80px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    text-align: center;
}

.number-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.2);
}

/* Progress Bar */
.batch-progress {
    margin-top: var(--spacing-md);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.progress-fill {
    height: 100%;
    background: var(--accent-gradient);
    border-radius: var(--radius-full);
    transition: width 0.3s ease;
    width: 0%;
}

.batch-progress p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-align: center;
}

/* Image Modal */
.image-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-xl);
}

.modal-content {
    position: relative;
    max-width: 800px;
    max-height: 90vh;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.modal-close {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 36px;
    height: 36px;
    background: rgba(0, 0, 0, 0.7);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 24px;
    cursor: pointer;
    z-index: 10;
    transition: background var(--transition-fast);
}

.modal-close:hover {
    background: var(--danger);
}

.modal-content img {
    display: block;
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
}

.modal-actions {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    justify-content: center;
    background: var(--bg-tertiary);
}

.image-container {
    position: relative;
    width: 100%;
    max-width: 700px;
    aspect-ratio: 1;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
}

.placeholder {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.placeholder-icon {
    font-size: 5rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.generated-image,
.variant-canvas {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: var(--radius-md);
}

.hidden {
    display: none !important;
}

/* Loading Overlay */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    z-index: 10;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-overlay p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

/* Image Counter */
.image-counter {
    background: var(--bg-glass);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.image-counter span {
    font-weight: 700;
    color: var(--accent-secondary);
}

/* Gallery Panel */
.gallery-panel h2 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.gallery-controls {
    margin-bottom: var(--spacing-md);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    max-height: 500px;
    overflow-y: auto;
    padding-right: var(--spacing-sm);
}

.gallery-grid::-webkit-scrollbar {
    width: 6px;
}

.gallery-grid::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 3px;
}

.gallery-grid::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 3px;
}

.gallery-item {
    aspect-ratio: 1;
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-fast);
    position: relative;
}

.gallery-item:hover {
    border-color: var(--accent-primary);
    transform: scale(1.05);
}

.gallery-item.selected {
    border-color: var(--accent-secondary);
    box-shadow: 0 0 20px rgba(168, 85, 247, 0.4);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gallery-item .delete-btn {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 20px;
    height: 20px;
    background: rgba(239, 68, 68, 0.9);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 12px;
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.gallery-item:hover .delete-btn {
    opacity: 1;
}

.empty-gallery {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--text-muted);
    padding: var(--spacing-xl);
    font-size: 0.875rem;
}

/* Prompt Preview */
.prompt-preview {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
}

.prompt-preview strong {
    color: var(--accent-secondary);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.prompt-preview p {
    color: var(--text-secondary);
    word-break: break-word;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: 1000;
}

.toast {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    animation: slideIn 0.3s ease;
    max-width: 350px;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(100px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast.success {
    border-left: 4px solid var(--success);
}

.toast.error {
    border-left: 4px solid var(--danger);
}

.toast.info {
    border-left: 4px solid var(--info);
}

.toast-icon {
    font-size: 1.5rem;
}

.toast-message {
    flex: 1;
    font-size: 0.875rem;
}

/* Variant Section Animation */
.variant-section {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 1400px) {
    .main-content {
        grid-template-columns: 280px 1fr 240px;
    }
}

@media (max-width: 1100px) {
    .main-content {
        grid-template-columns: 1fr;
    }

    .control-panel,
    .gallery-panel {
        position: static;
    }

    .gallery-grid {
        grid-template-columns: repeat(4, 1fr);
        max-height: 200px;
    }
}

@media (max-width: 600px) {
    .app-container {
        padding: var(--spacing-md);
    }

    .logo h1 {
        font-size: 1.8rem;
    }

    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .action-buttons {
        flex-direction: column;
        width: 100%;
    }

    .action-buttons .btn {
        width: 100%;
    }
}