/* ============================================
   ArtiAgent Web UI - Unified Stylesheet
   Supports both DefectFill & DefectDiffu
   ============================================ */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --success: #059669;
    --success-light: #d1fae5;
    --warning: #d97706;
    --warning-light: #fef3c7;
    --danger: #dc2626;
    --danger-light: #fee2e2;
    --dark: #1e293b;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --radius: 8px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.5;
    min-height: 100vh;
}

/* Header */
.header {
    background: var(--dark);
    color: white;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header h1 {
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.header .badge {
    background: var(--primary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.model-selector {
    display: flex;
    gap: 0.5rem;
    background: rgba(255,255,255,0.1);
    padding: 0.25rem;
    border-radius: var(--radius);
}

.model-btn {
    background: transparent;
    border: none;
    color: rgba(255,255,255,0.7);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s;
}

.model-btn:hover {
    color: white;
    background: rgba(255,255,255,0.1);
}

.model-btn.active {
    background: var(--primary);
    color: white;
}

.model-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Layout */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

.tabs {
    display: flex;
    gap: 0.25rem;
    background: white;
    padding: 0.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
    width: fit-content;
}

.tab-btn {
    background: none;
    border: none;
    padding: 0.625rem 1.25rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-500);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tab-btn:hover {
    color: var(--gray-700);
    background: var(--gray-100);
}

.tab-btn.active {
    background: var(--primary-light);
    color: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Cards */
.card {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-header .step-number {
    background: var(--primary);
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* Grid layouts */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

@media (max-width: 1024px) {
    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
    }
}

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 0.375rem;
}

.form-group .hint {
    font-size: 0.75rem;
    color: var(--gray-400);
    margin-top: 0.25rem;
}

input[type="text"],
input[type="number"],
input[type="file"],
select,
textarea {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 0.875rem;
    color: var(--gray-800);
    background: white;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

textarea {
    resize: vertical;
    min-height: 120px;
    font-family: inherit;
}

input[type="file"] {
    padding: 0.5rem;
    cursor: pointer;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    white-space: nowrap;
}

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

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-success:hover:not(:disabled) {
    background: #047857;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: #b91c1c;
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--gray-200);
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
}

/* Upload zone */
.upload-zone {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    background: var(--gray-50);
    transition: all 0.2s;
    cursor: pointer;
}

.upload-zone:hover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.upload-zone.dragover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.upload-zone .icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--gray-400);
}

.upload-zone p {
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* Image gallery */
.image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.image-item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    border: 2px solid var(--gray-200);
    aspect-ratio: 1;
    background: var(--gray-100);
}

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

.image-item .overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s;
}

.image-item:hover .overlay {
    opacity: 1;
}

.image-item .badge-mask {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: var(--success);
    color: white;
    font-size: 0.625rem;
    padding: 0.125rem 0.375rem;
    border-radius: 4px;
    font-weight: 600;
}

/* Canvas container */
.canvas-container {
    position: relative;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.canvas-container canvas {
    max-width: 100%;
    max-height: 600px;
    cursor: crosshair;
}

.canvas-toolbar {
    display: flex;
    gap: 0.5rem;
    padding: 0.75rem;
    background: var(--gray-100);
    border-bottom: 1px solid var(--gray-200);
    align-items: center;
    flex-wrap: wrap;
}

.canvas-toolbar span {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-left: auto;
}

/* Log viewer */
.log-viewer {
    background: var(--gray-800);
    color: #e2e8f0;
    font-family: "SF Mono", Monaco, "Cascadia Code", monospace;
    font-size: 0.75rem;
    line-height: 1.6;
    padding: 1rem;
    border-radius: var(--radius);
    height: 400px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

.log-viewer .log-line {
    padding: 0.125rem 0;
}

.log-viewer .log-error {
    color: #fca5a5;
}

.log-viewer .log-success {
    color: #86efac;
}

.log-viewer .log-warn {
    color: #fcd34d;
}

/* Progress bar */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--gray-200);
    border-radius: 9999px;
    overflow: hidden;
}

.progress-bar .fill {
    height: 100%;
    background: var(--primary);
    transition: width 0.3s ease;
    border-radius: 9999px;
}

/* Status badges */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.status-badge.running {
    background: var(--primary-light);
    color: var(--primary);
}

.status-badge.completed {
    background: var(--success-light);
    color: var(--success);
}

.status-badge.error {
    background: var(--danger-light);
    color: var(--danger);
}

.status-badge.idle {
    background: var(--gray-100);
    color: var(--gray-500);
}

/* Preview modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 2rem;
}

.modal-content {
    background: white;
    border-radius: var(--radius);
    max-width: 90vw;
    max-height: 90vh;
    overflow: auto;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(0,0,0,0.5);
    color: white;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content img {
    max-width: 100%;
    max-height: 80vh;
    display: block;
}

/* Generation results */
.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.result-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
}

.result-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    cursor: pointer;
    transition: transform 0.2s;
}

.result-card img:hover {
    transform: scale(1.02);
}

.result-card .info {
    padding: 1rem;
}

.result-card .info h4 {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.result-card .info p {
    font-size: 0.75rem;
    color: var(--gray-500);
}

/* Domain instruction examples */
.example-box {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 1rem;
    margin-bottom: 1rem;
}

.example-box h4 {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--gray-700);
}

.example-box pre {
    background: var(--gray-800);
    color: #e2e8f0;
    padding: 0.75rem;
    border-radius: 6px;
    font-size: 0.75rem;
    overflow-x: auto;
    white-space: pre-wrap;
}

/* Alert messages */
.alert {
    padding: 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-size: 0.875rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.alert-info {
    background: var(--primary-light);
    color: var(--primary-dark);
    border: 1px solid #bfdbfe;
}

.alert-success {
    background: var(--success-light);
    color: var(--success);
    border: 1px solid #a7f3d0;
}

.alert-warning {
    background: var(--warning-light);
    color: var(--warning);
    border: 1px solid #fde68a;
}

.alert-danger {
    background: var(--danger-light);
    color: var(--danger);
    border: 1px solid #fecaca;
}

/* Utility */
.hidden {
    display: none !important;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.w-full { width: 100%; }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.text-gray { color: var(--gray-500); }
.font-mono { font-family: monospace; }

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

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
}

.spinner-dark {
    border-color: var(--gray-300);
    border-top-color: var(--primary);
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    .header {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
    }
    .tabs {
        width: 100%;
        overflow-x: auto;
    }
}

/* ============================================
   Result Groups - Collapsible Accordion
   ============================================ */

.result-group {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    margin-bottom: 0.75rem;
    overflow: hidden;
    background: white;
}

.result-group-header {
    display: flex;
    align-items: center;
    padding: 0.875rem 1.25rem;
    background: var(--gray-50);
    cursor: pointer;
    user-select: none;
    transition: background 0.2s;
    border-bottom: 1px solid transparent;
}

.result-group-header:hover {
    background: var(--gray-100);
}

.result-group-header.active {
    background: var(--primary-light);
    border-bottom-color: var(--primary);
}

.result-group-header .group-title {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--gray-800);
}

.result-group-header .group-meta {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-left: 0.75rem;
}

.result-group-header .toggle-icon {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-left: auto;
    transition: color 0.2s;
}

.result-group-header:hover .toggle-icon {
    color: var(--primary);
}

.result-group-content {
    display: none;
    background: white;
}

.result-group-content.expanded {
    display: block;
    padding: 1rem;
}

.result-group-content .result-grid {
    margin-top: 0;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

/* ============================================
   Result Defect Groups - Second Level
   ============================================ */

.result-defect-group {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    margin-bottom: 0.5rem;
    overflow: hidden;
}

.result-defect-header {
    display: flex;
    align-items: center;
    padding: 0.625rem 1rem;
    background: var(--gray-50);
    cursor: pointer;
    user-select: none;
    transition: background 0.2s;
    border-bottom: 1px solid transparent;
}

.result-defect-header:hover {
    background: var(--gray-100);
}

.result-defect-header.active {
    background: #e0e7ff;
    border-bottom-color: var(--primary);
}

.result-defect-header .defect-title {
    font-weight: 600;
    font-size: 0.8125rem;
    color: var(--gray-800);
}

.result-defect-header .defect-meta {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-left: 0.75rem;
}

.result-defect-content {
    display: none;
    background: white;
    padding: 0.75rem;
}

.result-defect-content.expanded {
    display: block;
}

/* ============================================
   Result Trio Grid - Clean / Mask / Output
   ============================================ */

.result-trio-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
}

.result-trio-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    text-align: center;
}

.result-trio-card .trio-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-600);
    padding: 0.375rem;
    background: var(--gray-100);
    border-bottom: 1px solid var(--gray-200);
}

.result-trio-card img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    cursor: pointer;
    transition: transform 0.2s;
}

.result-trio-card img:hover {
    transform: scale(1.02);
}

.result-trio-card .trio-filename {
    font-size: 0.6875rem;
    color: var(--gray-500);
    padding: 0.375rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@media (max-width: 768px) {
    .result-trio-grid {
        grid-template-columns: 1fr;
    }
}