/* === style.css === (Complete version with all enhancements) */

/* --- Variables and Basic Styles --- */
:root {
    --primary: #4a6cf7;
    --secondary: #f7a94a;
    --background: #f5f7fa;
    --card: #ffffff;
    --text: #333333;
    --border: #e0e0e0;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --grey-bg: #cccccc; /* Grey for image backgrounds */
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    --loader-small-size: 16px; /* For inline loaders */
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background);
    margin: 0;
    padding: 20px;
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    background-color: var(--card);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 25px;
    margin-bottom: 20px;
}

h1, h2, h3, h4 {
    margin-top: 0;
    margin-bottom: 15px;
    color: var(--text);
}

h1 { font-size: 1.8em; }
h2 { font-size: 1.5em; border-bottom: 1px solid var(--border); padding-bottom: 10px; }
h3 { font-size: 1.2em; }
h4 { font-size: 1.1em; }


button {
    background-color: var(--primary);
    color: white;
    border: none;
    padding: 10px 18px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95em;
    transition: background-color 0.2s, opacity 0.2s;
    margin: 5px;
    vertical-align: middle;
}

button:hover:not([disabled]) {
    background-color: #3a5cd7;
}

button[disabled] {
    opacity: 0.6;
    cursor: not-allowed;
    background-color: #cccccc;
}
button[disabled]:hover {
    background-color: #cccccc;
}

/* Specific Button Styles */
button.download-btn { background-color: var(--success-color); }
button.download-btn:hover:not([disabled]) { background-color: #218838; }
button#revoke-access-button { background-color: var(--danger-color); }
button#revoke-access-button:hover:not([disabled]) { background-color: #c82333; }
/* Small button style for cards */
button.small-btn {
    padding: 4px 8px;
    font-size: 0.8em;
    margin: 2px;
    border-radius: 4px;
}
button.upscale-btn { background-color: var(--info-color); }
button.upscale-btn:hover:not([disabled]) { background-color: #138496; }
button.preview-btn { background-color: var(--secondary); }
button.preview-btn:hover:not([disabled]) { background-color: #e0903a; }
button.generate-more-btn { background-color: var(--success-color); font-size: 0.9em; padding: 6px 12px;}
button.generate-more-btn:hover:not([disabled]) { background-color: #218838;}


.hidden {
    display: none !important;
}

.page-content {
    margin-top: 20px;
    border-top: 1px solid var(--border);
    padding-top: 25px;
}

input[type="text"],
input[type="file"],
select,
textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    box-sizing: border-box;
    font-size: 1em;
    background-color: #fff;
}

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

label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
}

small {
    display: block;
    margin-top: -10px;
    margin-bottom: 10px;
    color: #666;
    font-size: 0.85em; /* Slightly smaller */
}

hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 25px 0;
}

/* --- Authentication & Status Styles --- */
.auth-section { 
    border: 1px solid var(--border); 
    border-radius: var(--border-radius); 
    padding: 15px; 
    background-color: #f8f9fa; 
    margin-bottom: 25px; 
}
.auth-section h3 { 
    margin-bottom: 10px; 
}
.notification { 
    padding: 12px 18px; 
    margin: 15px 0; 
    border-radius: var(--border-radius); 
    border-left: 5px solid var(--info-color); 
    background-color: rgba(23, 162, 184, 0.08); 
    color: var(--text); 
    font-size: 0.95em; 
}
.notification.error { 
    border-left-color: var(--danger-color); 
    background-color: rgba(220, 53, 69, 0.08); 
    color: #721c24; 
}
.notification.success { 
    border-left-color: var(--success-color); 
    background-color: rgba(40, 167, 69, 0.08); 
    color: #155724; 
}
.notification.warning { 
    border-left-color: var(--warning-color); 
    background-color: rgba(255, 193, 7, 0.08); 
    color: #856404; 
}
.auth-status-container { 
    margin-top: 15px; 
    padding: 10px 15px; 
    border-radius: var(--border-radius); 
    background-color: #e2e3e5; 
    border: 1px solid #d6d8db; 
    font-size: 0.9em; 
    color: #495057; 
}
details summary { 
    cursor: pointer; 
    color: #666; 
    font-size: 0.9em; 
    margin-bottom: 5px; 
}
details div { 
    padding: 10px; 
    background: #f1f1f1; 
    border-radius: 4px; 
    margin-top: 5px; 
    font-size: 0.85em; 
    border: 1px solid #eee; 
    line-height: 1.4; 
}
details ol { 
    padding-left: 20px; 
    margin-bottom: 0; 
}
details li { 
    margin-bottom: 4px; 
}

/* --- Enhanced Loading Indicators --- */
.loading { 
    display: flex; 
    align-items: flex-start; 
    gap: 12px; 
    margin: 20px 0; 
    padding: 12px 15px; 
    background-color: rgba(247, 169, 74, 0.1); 
    border: 1px solid var(--secondary); 
    border-radius: var(--border-radius); 
    color: #856404; 
    font-weight: 500; 
    /* Ensure visibility */
    opacity: 1 !important;
    position: relative;
    z-index: 50;
}

.loader { 
    display: inline-block; 
    flex-shrink: 0; 
    width: 22px; 
    height: 22px; 
    border: 4px solid rgba(0,0,0,.1); 
    border-radius: 50%; 
    border-top-color: var(--primary); 
    animation: spin 1s ease-in-out infinite; 
    margin-top: 2px; 
}

.loading-text { 
    flex-grow: 1; 
    display: flex; 
    flex-direction: column; 
}

.loading-text span { 
    margin-bottom: 5px; 
}

/* Make progress bars more visible */
progress { 
    width: 100%; 
    height: 10px; /* Slightly taller */
    border-radius: 4px; 
    border: 1px solid var(--border); 
    appearance: none; 
    overflow: hidden; 
    margin-top: 5px;
}

progress::-webkit-progress-bar { 
    background-color: #e9ecef; 
    border-radius: 4px; 
}

progress::-webkit-progress-value { 
    background-color: var(--primary); 
    border-radius: 4px; 
    transition: width 0.3s ease-out; 
}

progress::-moz-progress-bar { 
    background-color: var(--primary); 
    border-radius: 4px; 
    transition: width 0.3s ease-out; 
}

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

/* Small loader for inline use */
.loader-small {
    display: inline-block;
    width: var(--loader-small-size);
    height: var(--loader-small-size);
    border: 2px solid rgba(0,0,0,.1);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 0.8s ease-in-out infinite;
    vertical-align: middle;
    margin-right: 5px;
}

/* --- Page 1 Styles --- */
/* Grid layout for options */
.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

#image-preview-area { 
    display: flex; 
    flex-wrap: wrap; 
    gap: 12px; 
    margin-top: 10px; 
    padding: 15px; 
    min-height: 80px; 
    max-height: 250px; 
    overflow-y: auto; 
    border: 2px dashed var(--border); 
    border-radius: var(--border-radius); 
    background-color: #f9f9f9; 
    align-content: flex-start; 
    transition: background-color 0.3s ease, border-color 0.3s ease; 
}
#image-preview-area.dragover { 
    background-color: #eef2ff; 
    border-color: var(--primary); 
}
.thumbnail-container { 
    position: relative; 
    width: 70px; 
    height: 70px; 
    border-radius: 4px; 
    overflow: hidden; 
    box-shadow: 0 1px 3px rgba(0,0,0,0.1); 
}
.thumbnail { 
    width: 100%; 
    height: 100%; 
    object-fit: cover; 
    display: block; 
}

/* --- Page 2 Styles --- */
.controls-bar { 
    margin-bottom: 20px; 
    padding-bottom: 15px; 
    border-bottom: 1px solid var(--border); 
    display: flex; 
    flex-wrap: wrap; 
    gap: 10px; 
}
#prompt-review-area { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); 
    gap: 25px; 
    margin-top: 15px; 
}
.review-item { 
    border: 1px solid var(--border); 
    border-radius: var(--border-radius); 
    padding: 15px; 
    background-color: #fff; 
    box-shadow: var(--box-shadow); 
    display: flex; 
    flex-direction: column; 
}
.review-item img { 
    width: 100%; 
    height: auto; 
    max-height: 200px; 
    object-fit: contain; 
    display: block; 
    margin-bottom: 15px; 
    border: 1px solid var(--border); 
    background-color: var(--grey-bg); 
    border-radius: 4px; 
}
.review-item label { 
    display: flex; 
    align-items: center; 
    gap: 8px; 
    margin-bottom: 10px; 
    font-weight: 500; 
    cursor: pointer; 
}
.review-item input[type="checkbox"] { 
    width: 18px; 
    height: 18px; 
    margin-right: 5px; 
    flex-shrink: 0; 
}
.review-item textarea { 
    height: 120px; 
    flex-grow: 1; 
    font-size: 0.95em; 
}
.review-item textarea:disabled { 
    background-color: #f8f9fa; 
    cursor: not-allowed; 
}

/* --- Page 3 Styles --- */
.config-section { 
    display: flex; 
    flex-wrap: wrap; 
    gap: 20px; 
    margin-bottom: 25px; 
    padding-bottom: 20px; 
    border-bottom: 1px solid var(--border); 
}
.config-option { 
    flex: 1; 
    min-width: 200px; 
}
#generation-results-area { 
    margin-top: 25px; 
    display: flex; 
    flex-direction: column; 
    gap: 25px; 
}
.generation-result-item { 
    border: 1px solid var(--border); 
    border-radius: var(--border-radius); 
    padding: 20px; 
    background-color: #fff; 
    box-shadow: var(--box-shadow); 
}
.generation-result-item h4 { 
    margin: 0 0 15px 0; 
    font-size: 1.1em; 
    word-break: break-word; 
    border-bottom: 1px solid #eee; 
    padding-bottom: 10px; 
    cursor: help; 
}
.generated-image-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); 
    gap: 15px; 
}

.generated-image-card { 
    position: relative; 
    border: 1px solid var(--border); 
    border-radius: var(--border-radius); 
    overflow: hidden; 
    background-color: var(--grey-bg); 
}
.generated-image-card img { 
    display: block; 
    width: 100%; 
    height: auto; 
    min-height: 100px; 
    transition: transform 0.2s ease-in-out; 
}
.generated-image-card img:hover { 
    transform: scale(1.03); 
}
.generated-image-card input[type="checkbox"] { 
    position: absolute; 
    top: 10px; 
    left: 10px; 
    width: 20px; 
    height: 20px; 
    z-index: 10; 
    cursor: pointer; 
    background-color: rgba(255, 255, 255, 0.7); 
    border: 1px solid rgba(0, 0, 0, 0.3); 
    border-radius: 3px; 
    appearance: none; 
}
.generated-image-card input[type="checkbox"]:checked { 
    background-color: var(--primary); 
    border-color: var(--primary); 
}
.generated-image-card input[type="checkbox"]:checked::after { 
    content: '✔'; 
    color: white; 
    position: absolute; 
    left: 50%; 
    top: 50%; 
    transform: translate(-50%, -50%); 
    font-size: 14px; 
    line-height: 1; 
}

/* Styles for buttons/badge inside image card */
.image-card-controls {
    position: absolute;
    bottom: 5px;
    right: 5px;
    display: flex;
    gap: 4px;
    background-color: rgba(0, 0, 0, 0.4); /* Semi-transparent background */
    padding: 4px;
    border-radius: 4px;
}
.image-card-controls .upscale-badge {
    background-color: var(--info-color);
    color: white;
    padding: 3px 6px;
    border-radius: 4px;
    font-size: 0.75em;
    font-weight: bold;
    margin-left: 3px; /* Space from button */
    vertical-align: middle;
    display: inline-block; /* Needed if it's a span */
}
/* Small loader specifically for image cards */
.image-loading-indicator {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 5; /* Below checkbox */
    background-color: rgba(255, 255, 255, 0.6);
    padding: 5px;
    border-radius: 50%;
}


/* Styles for Generate More section */
.generate-more-section {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px dashed var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
}
.generate-more-loader { /* Reuse loading styles but customize */
    padding: 5px;
    margin: 0;
    border: none;
    background: none;
    gap: 5px;
    align-items: center;
}
.generate-more-loader span { font-size: 0.9em; color: var(--text); }
.generate-more-loader .loader-small { border-top-color: var(--success-color); /* Match button color */ }
.generate-more-progress { height: 5px; flex-grow: 1; max-width: 100px; /* Limit width */}
.generate-more-progress::-webkit-progress-value { background-color: var(--success-color); }
.generate-more-progress::-moz-progress-bar { background-color: var(--success-color); }


/* Download Controls Section */
/* Ensure always visible once we have results */
#download-controls { 
    margin-top: 25px; 
    padding-top: 20px; 
    border-top: 1px solid var(--border); 
}

#download-controls .controls-bar { 
    border-bottom: none; 
    padding-bottom: 0; 
}

#download-controls button {
    min-width: 140px; /* Ensure uniform width */
}

/* --- Navigation --- */
.navigation-buttons { 
    margin-top: 25px; 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
}
#back-to-page-1-btn, #back-to-page-2-btn { 
    background-color: #6c757d; 
}
#back-to-page-1-btn:hover:not([disabled]), 
#back-to-page-2-btn:hover:not([disabled]) { 
    background-color: #5a6268; 
}

/* --- Enhanced Preview Modal --- */
.preview-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s;
    pointer-events: none;
}

.preview-modal.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.preview-image-container {
    position: relative;
    max-width: 90%;
    max-height: 90vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

#preview-image {
    display: block;
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.3);
}

.preview-close-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 2.5em;
    color: #fff;
    background: none;
    border: none;
    cursor: pointer;
    line-height: 1;
    padding: 5px;
    opacity: 0.7;
    transition: opacity 0.2s ease;
    z-index: 1010;
}

.preview-close-btn:hover {
    opacity: 1;
}

.preview-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 3em;
    color: #fff;
    background-color: rgba(0, 0, 0, 0.3);
    border: none;
    cursor: pointer;
    padding: 10px 15px;
    border-radius: 5px;
    opacity: 0.6;
    transition: opacity 0.2s ease, background-color 0.2s ease;
    z-index: 1001;
}

.preview-nav-btn:hover {
    opacity: 1;
    background-color: rgba(0, 0, 0, 0.5);
}

.preview-nav-btn.prev { left: 15px; }
.preview-nav-btn.next { right: 15px; }

.preview-nav-btn:disabled {
    opacity: 0.2;
    cursor: not-allowed;
}

/* Preview Image Info */
.preview-image-info {
    position: absolute;
    bottom: 15px;
    left: 15px;
    background-color: rgba(0, 0, 0, 0.6);
    color: white;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 14px;
    z-index: 1005;
}

/* Preview Upscale Button */
.preview-upscale-btn {
    position: absolute;
    bottom: 15px;
    right: 15px;
    background-color: #17a2b8;
    color: white;
    border: none;
    border-radius: 4px;
    padding: 8px 12px;
    cursor: pointer;
    z-index: 1005;
    font-size: 14px;
    transition: background-color 0.2s;
}

.preview-upscale-btn:hover:not([disabled]) {
    background-color: #138496;
}

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

/* Preview Upscale Loader */
.preview-upscale-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
    padding: 20px;
    z-index: 1010;
}

.preview-upscale-loader .loader {
    width: 40px;
    height: 40px;
}