/* ===== CSS Variables ===== */
:root {
    --primary: #00adb5;
    --primary-hover: #008a91;
    --primary-light: #e6f7f8;
    --bg-color: #f8fafc;
    --bg-card: #ffffff;
    --text-color: #1e293b;
    --text-sub: #64748b;
    --border-color: #e2e8f0;
    --success: #10b981;
    --success-light: #d1fae5;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.08);
    --radius: 10px;
    --radius-sm: 6px;
    --transition: 0.25s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-color); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-sub); }

/* ===== Sidebar ===== */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 220px;
    height: 100vh;
    background: #0f172a;
    color: #e2e8f0;
    display: flex;
    flex-direction: column;
    padding: 20px 0 16px 0;
    z-index: 1000;
    transition: width 0.3s ease, transform 0.3s ease;
    overflow: visible;
}

.sidebar.collapsed {
    width: 64px;
}

.sidebar.collapsed .logo-text,
.sidebar.collapsed .nav-text,
.sidebar.collapsed .sidebar-footer .nav-text,
.sidebar.collapsed .sidebar-download-btn .nav-text {
    display: none;
}

.sidebar.collapsed .logo-area {
    justify-content: center;
    padding: 0 12px 24px 12px;
    gap: 0;
}

.sidebar.collapsed .nav-link {
    justify-content: center;
    padding: 10px 0;
}

.sidebar.collapsed .nav-link i {
    font-size: 18px;
}

.sidebar.collapsed .sidebar-footer .nav-link {
    justify-content: center;
}

.sidebar.collapsed .sidebar-download {
    padding: 8px 6px 4px 6px;
}

.sidebar.collapsed .sidebar-download-btn {
    justify-content: center;
    padding: 8px 0;
}

.sidebar.collapsed .sidebar-download-btn i {
    font-size: 18px;
    margin: 0;
}

.sidebar.collapsed .download-divider {
    margin: 0 4px 8px 4px;
}

.sidebar.collapsed .sidebar-collapse i {
    transform: rotate(180deg);
}

.sidebar.collapsed ~ .main-wrapper {
    margin-left: 64px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 20px 24px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.logo-icon {
    font-size: 26px;
    color: var(--primary);
    flex-shrink: 0;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
    flex: 1;
}

/* ===== Collapse Button ===== */
.sidebar-collapse {
    position: absolute;
    right: -14px;
    top: 24px;
    background: #1e293b;
    color: #94a3b8;
    border: 1px solid #334155;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
    padding: 0;
    flex-shrink: 0;
    font-size: 14px;
}

.sidebar-collapse:hover {
    background: #334155;
    color: #fff;
    border-color: var(--primary);
}

.sidebar-collapse i {
    transition: transform 0.3s ease;
}

.nav-menu {
    flex: 1;
    padding: 16px 10px 0 10px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    overflow-y: auto;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    color: #94a3b8;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.nav-link i {
    width: 20px;
    text-align: center;
    font-size: 15px;
    flex-shrink: 0;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.06);
    color: #f1f5f9;
}

.nav-link.active {
    background: rgba(0, 173, 181, 0.15);
    color: var(--primary);
}

.sidebar-footer {
    padding: 12px 10px 0 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

/* ===== Sidebar Download ===== */
.sidebar-download {
    padding: 8px 10px 4px 10px;
    margin-top: 4px;
}

.download-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
    margin: 0 8px 10px 8px;
}

.download-buttons {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar-download-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    background: rgba(0, 173, 181, 0.12);
    border: 1px solid rgba(0, 173, 181, 0.2);
    color: #e2e8f0;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    width: 100%;
    transition: var(--transition);
    font-family: inherit;
}

.sidebar-download-btn i {
    width: 20px;
    text-align: center;
    font-size: 15px;
    flex-shrink: 0;
}

.sidebar-download-btn:hover {
    background: rgba(0, 173, 181, 0.25);
    border-color: var(--primary);
}

.sidebar-download-btn .nav-text {
    font-size: 13px;
}

/* ===== Sidebar Overlay ===== */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 999;
}

.sidebar-overlay.active {
    display: block;
}

.nav-link[data-page="overview"] {
    position: relative;
    margin-top: 10px; 
}

.nav-link[data-page="overview"]::before {
    content: '';
    position: absolute;
    top: -6px;  
    left: 14px;  
    right: 14px;
    height: 2px;
    background: rgba(255, 255, 255, 0.08); 
}

.sidebar.collapsed .nav-link[data-page="overview"]::before {
    left: 8px;
    right: 8px;
}

/* ===== Main Wrapper ===== */
.main-wrapper {
    margin-left: 220px;
    flex: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left 0.3s ease;
}

/* ===== Header ===== */
header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 0 30px;
    height: 64px;
    display: flex;
    align-items: center;
    gap: 16px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 20px;
    color: var(--text-color);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
}

.sidebar-toggle:hover {
    background: var(--bg-color);
}

.page-title {
    font-size: 18px;
    font-weight: 600;
    flex: 1;
}

/* ===== Job ID Display ===== */
.job-id-display {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 14px;
    background: #f0f4fa;
    border-radius: 30px;
    font-size: 12px;
    color: #1e2b3c;
    border: 1px solid #e0e8f0;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.job-id-display .job-id-label {
    font-weight: 600;
    color: #0d9488;
    font-size: 11px;
}

.job-id-display .job-id-value {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-weight: 600;
    color: #1a2332;
    font-size: 13px;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.job-id-display .job-id-value.running {
    color: #d97706;
}

.job-id-display .job-id-value.completed {
    color: #0d9488;
}

.job-id-display .job-id-value.failed {
    color: #dc2626;
}

.job-id-copy {
    background: transparent;
    border: 1px solid #d0d8e0;
    border-radius: 30px;
    padding: 0 8px;
    font-size: 10px;
    cursor: pointer;
    color: #6b7280;
    font-family: inherit;
    transition: 0.15s;
    height: 20px;
    display: flex;
    align-items: center;
    gap: 3px;
}

.job-id-copy:hover {
    background: #d8e3f0;
    color: #1a2332;
}

.job-id-copy:active {
    transform: scale(0.95);
}

.job-id-status {
    font-size: 10px;
    font-weight: 600;
    padding: 1px 10px;
    border-radius: 30px;
    background: #e5e7eb;
    color: #6b7280;
    display: inline-block;
    white-space: nowrap;
}

.job-id-status.ready {
    background: #e5e7eb;
    color: #6b7280;
}

.job-id-status.running {
    background: #fef3c7;
    color: #d97706;
}

.job-id-status.completed {
    background: #d1fae5;
    color: #065f46;
}

.job-id-status.failed {
    background: #fee2e2;
    color: #dc2626;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 10px;
}

.version-tag {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-sub);
    background: var(--bg-color);
    padding: 2px 10px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    font-family: monospace;
    letter-spacing: 0.3px;
}

.avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 13px;
}

/* ===== Stepper ===== */
.stepper-container {
    padding: 16px 30px 0 30px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
}

.stepper {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px 0;
    max-width: 700px;
    margin: 0 auto;
}

.step-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-sub);
    white-space: nowrap;
}

.step-circle {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 12px;
    color: var(--text-sub);
    transition: all 0.3s ease;
}

/* ★★★ Current step - highlighted ★★★ */
.step-item.active .step-circle {
    background: #0d9488;
    border-color: #0d9488;
    color: #fff;
    box-shadow: 0 0 0 4px rgba(13, 148, 136, 0.25), 0 4px 16px rgba(13, 148, 136, 0.35);
    transform: scale(1.05);
}

.step-item.completed .step-circle {
    background: var(--success);
    border-color: var(--success);
    color: #fff;
}

.step-item.clickable {
    cursor: pointer;
}

.step-item.clickable:hover .step-circle {
    transform: scale(1.05);
}

.step-label {
    font-weight: 500;
    font-size: 12px;
}

/* ★★★ Current step label - bold + teal ★★★ */
.step-item.active .step-label {
    color: #0d9488;
    font-weight: 700;
}

.step-item.completed .step-label {
    color: var(--text-color);
}

.step-connector {
    width: 36px;
    height: 2px;
    background: var(--border-color);
    margin: 0 4px;
    transition: background 0.3s ease;
}

.step-connector.done {
    background: var(--success);
}

/* ===== Sticky Result Nav Bar =====
   #resultNavSticky is driven by updateResultNavBar() in main.js: it gets .visible on
   result pages when a job exists, and .active on the card matching the current page.
   It must stay a DIRECT child of .main-wrapper: a height:auto wrapper would confine the
   sticky containing block to that wrapper, so the bar would unpin as soon as the wrapper
   scrolled past. top:64px pins it right under the sticky header. */
.result-nav-sticky {
    display: none;
    position: sticky;
    top: 64px;                       /* header height */
    z-index: 90;                     /* below header(100), above page content */
    gap: 12px;
    padding: 12px 30px;
    background: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
}

/* Two independent ways to reveal the bar, neither of which can hide the other:
     1. JS sets .visible (the real path - see updateResultNavBar in main.js).
     2. a :has() fallback from page state, so a stale/broken main.js (or a refresh that
        dropped currentJobId before updateResultNavBar ran) cannot make the three cards
        silently vanish.
   The "no job yet" case is handled in JS by NOT adding .visible on the Tutorial/Settings
   pages, which is where the user lands on a fresh load.
   NOTE: deliberately avoid a second :has() rule that sets display:none here. Measured in
   Chromium, when two :has() rules with equal specificity both set display on this element,
   the earlier one wins regardless of source order (and a Firefox-only pseudo-class in a
   selector list makes the whole rule be dropped). Keeping the fallback "additive only"
   sidesteps both traps. */
.result-nav-sticky.visible,
body:has(.page-view.active#page-overview) .result-nav-sticky,
body:has(.page-view.active#page-diff) .result-nav-sticky,
body:has(.page-view.active#page-viz) .result-nav-sticky {
    display: flex;
    flex-wrap: wrap;
}

.result-nav-card {
    flex: 1 1 220px;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    font: inherit;
    text-align: left;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: var(--transition);
}

.result-nav-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px);
}

.result-nav-card.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 1px var(--primary) inset, var(--shadow);
}

.result-nav-card.active .rnc-icon {
    background: var(--primary);
    color: #fff;
}

.result-nav-card.active .rnc-title {
    color: var(--primary);
}

.result-nav-card:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.rnc-icon {
    flex: 0 0 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    transition: var(--transition);
}

.rnc-text {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.rnc-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.rnc-desc {
    font-size: 12px;
    color: var(--text-sub);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@media (max-width: 768px) {
    .result-nav-sticky { padding: 10px 16px; gap: 8px; }
    .result-nav-card { flex: 1 1 100%; padding: 10px 12px; }
    .rnc-desc { display: none; }
}

/* ===== Content Body ===== */
.content-body {
    flex: 1;
    padding: 24px 30px 40px 30px;
}

/* ===== Page Views ===== */
.page-view {
    display: none;
    animation: fadeIn 0.3s ease;
}

.page-view.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-sub);
}

.empty-state i {
    font-size: 48px;
    color: var(--border-color);
    margin-bottom: 16px;
    display: block;
}

.empty-state p {
    font-size: 15px;
    line-height: 1.8;
}

/* ===== Settings ===== */
.settings-container {
    max-width: 860px;
    margin: 0 auto;
}

.form-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px 32px 32px 32px;
}

.form-section {
    margin-bottom: 28px;
}

.form-section:last-of-type {
    margin-bottom: 24px;
}

.section-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-title i {
    color: var(--primary);
}

.env-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 14px;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-color);
}

.required {
    color: var(--danger);
    margin-left: 2px;
}

.form-control {
    width: 100%;
    padding: 8px 12px;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-color);
    background: var(--bg-card);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 173, 181, 0.1);
}

.form-hint {
    font-size: 12px;
    color: var(--text-sub);
    margin-top: 4px;
}

.ref-info {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: var(--bg-color);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-sub);
    border: 1px solid var(--border-color);
}

.ref-info i {
    color: var(--primary);
}

.ref-info-content {
    font-family: monospace;
    font-size: 13px;
    color: var(--text-color);
}

.format-notice {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 14px;
    background: var(--primary-light);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-color);
    border: 1px solid rgba(0, 173, 181, 0.2);
    margin-top: 6px;
}

.format-notice i {
    color: var(--primary);
    margin-top: 2px;
}

.format-tag {
    display: inline-block;
    background: var(--bg-card);
    padding: 0 8px;
    border-radius: 3px;
    font-family: monospace;
    font-size: 12px;
    border: 1px solid var(--border-color);
    margin: 0 2px;
}

/* ===== File Drop Zone ===== */
.file-drop-zone {
    position: relative;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-sm);
    padding: 32px 20px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    background: var(--bg-color);
}

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

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

.file-drop-zone.error-state {
    border-color: var(--danger);
    background: var(--danger-light);
}

.file-drop-zone input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.drop-icon {
    font-size: 36px;
    color: var(--primary);
    margin-bottom: 8px;
}

.drop-text {
    font-size: 14px;
    color: var(--text-sub);
}

.drop-text strong {
    color: var(--primary);
}

.error-msg {
    display: none;
    color: var(--danger);
    font-size: 13px;
    margin-top: 6px;
}

.error-msg.visible {
    display: block;
}

.file-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.file-chip {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 4px 10px 4px 12px;
    font-size: 13px;
}

.file-chip i {
    color: var(--primary);
}

.file-chip .fname {
    font-weight: 500;
    max-width: 140px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-chip .fsize {
    color: var(--text-sub);
    font-size: 11px;
}

.file-chip .remove-file {
    background: none;
    border: none;
    color: var(--text-sub);
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 50%;
    font-size: 12px;
    transition: var(--transition);
}

.file-chip .remove-file:hover {
    color: var(--danger);
    background: var(--danger-light);
}

/* ===== Range Input ===== */
.range-input-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.range-input-group input[type="range"] {
    flex: 1;
    accent-color: var(--primary);
}

.range-input-group input[type="number"] {
    width: 70px;
    padding: 4px 8px;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 13px;
    text-align: center;
}

.range-input-group input[type="number"]:focus {
    outline: none;
    border-color: var(--primary);
}

.param-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
}

/* ===== Button Row ===== */
.btn-row {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}
.btn-row .btn-primary {
    flex: 8;
    margin-top: 0;
}
.btn-row .btn-example {
    flex: 2;
}

.btn-example {
    flex: 2;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    background: #19b2da;
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    font-family: inherit;
}
.btn-example:hover {
    background: #3F96C3;
}
.btn-example:active {
    transform: scale(0.98);
}
.btn-example .spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
.btn-example.loading .spinner {
    display: block;
}
.btn-example.loading .btn-text {
    display: none;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== Buttons ===== */
.btn-primary {
    width: 100%;
    padding: 12px 24px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 173, 181, 0.3);
}

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

.btn-primary .spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

.btn-primary.loading .btn-text {
    display: none;
}

.btn-primary.loading .spinner {
    display: block;
}

/* ===== Job Status ===== */
#jobStatus {
    margin-top: 16px;
}

.job-status {
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-color);
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 8px;
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 4px;
    transition: width 0.4s ease;
}

/* ===== Stats Grid ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

/* Notice injected by showNoDataPlaceholder() at the top of #page-overview */
#overviewNotice {
    text-align: center;
    padding: 14px 18px;
    color: var(--text-sub);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: 14px;
}

#overviewNotice i { color: var(--primary); margin-right: 8px; }

/* ===== Analysis Parameters card (Overview page) ===== */
.param-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 24px;
    overflow: hidden;
}

.param-summary {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 20px;
    cursor: pointer;
    list-style: none;
    transition: var(--transition);
}

.param-summary::-webkit-details-marker { display: none; }   /* Chrome/Safari */
.param-summary::marker { content: ''; }                    /* Firefox */

.param-summary:hover { background: var(--bg-color); }
.param-summary:focus-visible { outline: 2px solid var(--primary); outline-offset: -2px; }

.param-summary-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.param-summary-title i { color: var(--primary); font-size: 14px; }

.param-jobid {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary);
    background: rgba(13, 148, 136, 0.08);
    padding: 2px 8px;
    border-radius: 4px;
    white-space: nowrap;
}

.param-sub {
    flex: 1;
    min-width: 0;
    font-size: 12px;
    color: var(--text-sub);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.param-chevron {
    color: var(--text-sub);
    font-size: 12px;
    transition: transform 0.25s ease;
}

.param-card[open] .param-chevron { transform: rotate(180deg); }

.param-body {
    padding: 4px 20px 16px 20px;
    border-top: 1px solid var(--border-color);
}

.param-grid {
    /* fixed columns keep the labels aligned; auto-fit produced uneven columns and
       pushed the long Job ID into a narrow slot where it wrapped mid-value */
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px 24px;
    margin: 14px 0 0 0;
    padding: 0;
}

@media (max-width: 900px) {
    .param-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
    .param-grid { grid-template-columns: 1fr; }
}

/* the job id is long, so give it the full row */
.param-item.span-all { grid-column: 1 / -1; }

.param-item { min-width: 0; }

.param-item dt {
    font-size: 12px;
    color: var(--text-sub);
    margin-bottom: 2px;
}

.param-item dd {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-color);
    overflow-wrap: anywhere;
}

.param-item.val-strong dd { color: var(--primary); }

.param-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.param-src {
    font-size: 12px;
    color: var(--text-sub);
    min-width: 0;
}

.param-copy {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-color);
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.param-copy:hover { border-color: var(--primary); color: var(--primary); }
.param-copy:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

/* ===== Toast / dialog animations =====
   Moved out of main.js: the runtime-injected <style> only existed after showConfirmDialog()
   or showSuccessToast() had been called at least once, so an element created before that
   (e.g. the completion guide modal) could reference a keyframe that was never defined. */
@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to   { transform: translateY(0);    opacity: 1; }
}

@keyframes slideInRight {
    from { transform: translateX(100px); opacity: 0; }
    to   { transform: translateX(0);     opacity: 1; }
}

.custom-toast {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 10000;
    display: flex;
    align-items: center;
    gap: 12px;
    max-width: min(400px, calc(100vw - 48px));
    padding: 16px 24px;
    background: var(--success);
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.5;
    white-space: pre-line;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(16, 185, 129, 0.3);
    cursor: pointer;
    animation: slideInRight 0.4s ease;
}

.custom-toast i { font-size: 20px; flex-shrink: 0; }

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 18px 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.stat-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--primary);
    flex-shrink: 0;
}

.stat-icon .fa-dna { color: var(--primary); }
.stat-icon .fa-gene { color: #8b5cf6; }
.stat-icon .fa-check-circle { color: var(--success); }
.stat-icon .fa-exclamation-triangle { color: var(--warning); }

.stat-number {
    font-size: 24px;
    font-weight: 700;
    line-height: 1.2;
}

.stat-label {
    font-size: 13px;
    color: var(--text-sub);
}

/* ===== Charts ===== */
.chart-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.chart-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.chart-title {
    padding: 14px 18px;
    font-weight: 600;
    font-size: 14px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.chart-title i {
    color: var(--primary);
}

.chart-body {
    padding: 16px 18px;
    min-height: 180px;
}

/* ===== Enrichment ===== */
.enrichment-section {
    margin-top: 24px;
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.section-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.section-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.section-header h3 i {
    color: var(--primary);
    margin-right: 8px;
}

.enrichment-info {
    padding: 12px 20px;
    display: flex;
    gap: 24px;
    font-size: 14px;
    background: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
}

.enrichment-info p {
    margin: 0;
}

.enrichment-tabs-container {
    padding: 0 20px;
    border-bottom: 1px solid var(--border-color);
}

.enrichment-tabs {
    display: flex;
    gap: 4px;
    padding: 12px 0 0 0;
}

.tab-btn {
    padding: 8px 18px;
    border: none;
    background: none;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-sub);
    cursor: pointer;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    transition: var(--transition);
}

.tab-btn:hover {
    color: var(--text-color);
    background: var(--bg-color);
}

.tab-btn.active {
    color: var(--primary);
    background: var(--primary-light);
    border-bottom: 2px solid var(--primary);
}

.enrichment-content {
    padding: 16px 20px 20px 20px;
}

.tab-content {
    display: none;
}

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

.enrichment-chart {
    margin-bottom: 16px;
}

.enrichment-table-wrap {
    overflow-x: auto;
}

/* ===== Tables ===== */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.data-table thead th {
    padding: 8px 12px;
    text-align: left;
    background: var(--bg-color);
    border-bottom: 2px solid var(--border-color);
    font-weight: 600;
    color: var(--text-sub);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.data-table thead th[data-sort] {
    cursor: pointer;
    user-select: none;
}

.data-table thead th[data-sort]:hover {
    color: var(--primary);
}

.data-table tbody td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.data-table tbody tr:hover {
    background: var(--bg-color);
}

/* ===== Tags ===== */
.tag {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}

.tag-se { background: #dbeafe; color: #2563eb; }
.tag-ri { background: #fef3c7; color: #d97706; }
.tag-a3ss { background: #fce4ec; color: #dc2626; }
.tag-a5ss { background: #e0f2fe; color: #0284c7; }
.tag-mxe { background: #ede9fe; color: #7c3aed; }

.tag-ok { background: var(--success-light); color: var(--success); }
.tag-nmd { background: var(--danger-light); color: var(--danger); }
.tag-warning { background: var(--warning-light); color: var(--warning); }

/* ===== Diff ===== */
.diff-container {
    max-width: 100%;
}

.diff-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.diff-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.diff-controls {
    font-size: 14px;
    color: var(--text-sub);
}

.diff-filters {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 16px;
    padding: 12px 16px;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 6px;
}

.filter-group label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-sub);
}

.filter-group select,
.filter-group input {
    padding: 4px 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 12px;
    background: var(--bg-card);
}

.filter-group select:focus,
.filter-group input:focus {
    outline: none;
    border-color: var(--primary);
}

.table-wrap {
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.diff-table {
    font-size: 13px;
}

.diff-table tbody tr {
    cursor: pointer;
    transition: var(--transition);
}

.diff-table tbody tr:hover {
    background: var(--bg-color);
}

.diff-table tbody tr.active-row {
    background: var(--primary-light);
}

/* ===== Pagination Controls ===== */
.diff-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    padding: 14px 0;
}

.diff-pagination button {
    padding: 6px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    cursor: pointer;
    font-size: 13px;
    transition: var(--transition);
}

.diff-pagination button:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
}

.diff-pagination button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.diff-pagination span {
    font-size: 14px;
    color: var(--text-sub);
}

/* ===== Pagination Toggle Button ===== */
.btn-toggle-page {
    padding: 6px 16px;
    border: 1px solid var(--border-color, #e0e6ed);
    border-radius: 6px;
    background: var(--bg-card, #fff);
    cursor: pointer;
    font-family: inherit;
    font-size: 13px;
    transition: all 0.2s;
}
.btn-toggle-page:hover {
    background: var(--bg-color);
}
.btn-toggle-page.active {
    border-color: var(--primary);
    background: var(--primary-light);
    color: var(--primary);
}

/* ===== Diff Detail ===== */
.diff-detail {
    margin-top: 20px;
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 20px;
    background: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
}

.detail-header h4 {
    font-size: 15px;
    font-weight: 600;
}

.detail-header h4 i {
    color: var(--primary);
    margin-right: 8px;
}

.detail-close {
    background: none;
    border: none;
    font-size: 18px;
    color: var(--text-sub);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.detail-close:hover {
    background: var(--danger-light);
    color: var(--danger);
}

.detail-content {
    padding: 16px 20px 20px 20px;
}

.detail-section {
    margin-bottom: 16px;
}

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

.detail-section-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-sub);
    margin-bottom: 8px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--border-color);
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px 16px;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    padding: 3px 0;
    font-size: 13px;
}

.detail-label {
    color: var(--text-sub);
    font-weight: 500;
}

.detail-value {
    font-weight: 600;
}

.detail-coords .detail-item {
    font-size: 12px;
}

.detail-coords .detail-value {
    font-family: monospace;
    font-weight: 400;
}

.detail-sequence {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px 20px;
}

.seq-group {
    padding: 4px 0;
}

.seq-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-sub);
}

.seq-value {
    font-family: monospace;
    font-size: 12px;
    word-break: break-all;
    max-height: 80px;
    overflow-y: auto;
    padding: 2px 0;
}

/* ===== Viz ===== */
.viz-container {
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    overflow: hidden;
    min-height: 400px;
}

.viz-container iframe {
    display: block;
    width: 100%;
    height: 800px;
    border: none;
}

@media (max-width: 768px) {
    .viz-container iframe {
        height: 500px;
    }
}

/* ===== Modal ===== */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.modal-overlay.active {
    display: flex;
}

.modal-box {
    background: var(--bg-card);
    border-radius: var(--radius);
    max-width: 480px;
    width: 90%;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.modal-header {
    padding: 16px 20px;
    background: var(--warning-light);
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-header i {
    color: var(--warning);
    font-size: 20px;
}

.modal-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.modal-body {
    padding: 20px;
    font-size: 14px;
    color: var(--text-color);
}

.modal-body p {
    margin-bottom: 8px;
}

.missing-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin: 8px 0;
}

.missing-tag {
    display: inline-block;
    padding: 4px 14px;
    background: var(--danger-light);
    color: var(--danger);
    border-radius: 12px;
    font-weight: 600;
    font-size: 13px;
}

.modal-footer {
    padding: 12px 20px;
    background: var(--bg-color);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.btn-modal {
    padding: 8px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-cancel:hover {
    background: var(--border-color);
}

.btn-confirm {
    background: var(--primary);
    color: #fff;
}

.btn-confirm:hover {
    background: var(--primary-hover);
}

/* ===== Footer ===== */
.app-footer {
    text-align: center;
    padding: 14px 28px 12px 28px;
    border-top: 1px solid var(--border-color, #e0e6ed);
    font-size: 12px;
    color: var(--text-sub, #8a9aaa);
    background: var(--bg-card, #ffffff);
    flex-shrink: 0;
    margin-top: auto;
}
.app-footer a {
    color: var(--primary, #1a73e8);
    text-decoration: none;
}
.app-footer a:hover {
    text-decoration: underline;
}
.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 4px;
}
.footer-copyright {
    font-size: 11px;
    color: var(--text-sub, #8a9aaa);
}
.footer-sep {
    color: var(--border-color, #e0e6ed);
    margin: 0 6px;
}

/* ===== Usage / Tutorial ===== */
.usage-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 10px 0 30px 0;
}

.usage-header {
    text-align: center;
    padding: 20px 0 10px 0;
}

.usage-icon {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 12px;
}

.usage-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-color);
    margin: 0 0 6px 0;
}

.usage-subtitle {
    font-size: 16px;
    color: var(--text-sub);
    margin: 0;
}

.usage-steps-overview {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 24px 0 32px 0;
    flex-wrap: wrap;
}

.step-overview-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.step-num {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
}

.step-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-sub);
}

.step-overview-connector {
    width: 40px;
    height: 2px;
    background: var(--border-color);
    margin: 0 6px 18px 6px;
}

.usage-step {
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    margin-bottom: 20px;
    overflow: hidden;
}

.usage-step-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 22px;
    background: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
}

.usage-step-number {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
    opacity: 0.3;
    letter-spacing: -0.5px;
    font-family: var(--font-mono);
}

.usage-step-header h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
}

.usage-step-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    padding: 18px 22px;
}

@media (max-width: 768px) {
    .usage-step-body {
        grid-template-columns: 1fr;
    }
}

.usage-step-desc p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0 0 12px 0;
    line-height: 1.7;
}

.usage-tips {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tip-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
    padding: 6px 10px;
    background: var(--bg-color);
    border-radius: var(--radius-sm);
}

.tip-item i {
    color: var(--primary);
    font-size: 14px;
    margin-top: 2px;
    flex-shrink: 0;
}

.tip-item strong {
    color: var(--text-color);
}

.usage-step-screenshot {
    display: flex;
    align-items: center;
    justify-content: center;
}

.screenshot-placeholder {
    width: 100%;
    height: 140px;
    background: var(--bg-color);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    color: var(--text-sub);
    font-size: 13px;
    text-align: center;
    padding: 12px;
}

.screenshot-placeholder i {
    font-size: 32px;
    color: var(--primary);
    opacity: 0.5;
}

.screenshot-hint {
    font-size: 11px;
    color: var(--text-sub);
    opacity: 0.7;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .chart-row {
        grid-template-columns: 1fr;
    }
    .param-grid {
        grid-template-columns: 1fr 1fr;
    }
    .detail-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .detail-sequence {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: 220px;
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .sidebar.collapsed {
        width: 220px;
        transform: translateX(-100%);
    }
    .sidebar.collapsed.open {
        transform: translateX(0);
    }
    .sidebar.collapsed .logo-text,
    .sidebar.collapsed .nav-text,
    .sidebar.collapsed .sidebar-footer .nav-text,
    .sidebar.collapsed .sidebar-download-btn .nav-text {
        display: inline;
    }
    .sidebar.collapsed .logo-area {
        justify-content: flex-start;
        padding: 0 20px 24px 20px;
    }
    .sidebar.collapsed .nav-link {
        justify-content: flex-start;
        padding: 10px 14px;
    }
    .sidebar.collapsed .nav-link i {
        font-size: 15px;
    }
    .sidebar.collapsed .sidebar-download {
        padding: 8px 10px 4px 10px;
    }
    .sidebar.collapsed .sidebar-download-btn {
        justify-content: flex-start;
        padding: 8px 14px;
    }
    .sidebar.collapsed .sidebar-download-btn i {
        font-size: 15px;
        margin: 0;
    }
    .sidebar.collapsed .sidebar-download-btn .nav-text {
        display: inline;
    }
    .sidebar.collapsed .download-divider {
        margin: 0 8px 10px 8px;
    }
    .sidebar.collapsed .sidebar-collapse i {
        transform: rotate(0deg);
    }
    .sidebar.collapsed ~ .main-wrapper {
        margin-left: 0;
    }
    .sidebar-overlay.active {
        display: block;
    }
    .sidebar-toggle {
        display: block;
    }
    .main-wrapper {
        margin-left: 0;
    }
    header {
        padding: 0 16px;
    }
    .content-body {
        padding: 16px;
    }
    .stepper-container {
        padding: 12px 16px 0 16px;
        overflow-x: auto;
    }
    .stepper {
        min-width: 560px;
        padding: 6px 0;
    }
    .step-label {
        font-size: 11px;
    }
    .step-circle {
        width: 26px;
        height: 26px;
        font-size: 11px;
    }
    .step-connector {
        width: 20px;
    }
    .form-card {
        padding: 16px;
    }
    .env-row {
        grid-template-columns: 1fr;
    }
    .param-grid {
        grid-template-columns: 1fr;
    }
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    .stat-card {
        padding: 12px 14px;
    }
    .stat-number {
        font-size: 20px;
    }
    .diff-filters {
        flex-direction: column;
    }
    .filter-group {
        width: 100%;
    }
    .filter-group select,
    .filter-group input {
        flex: 1;
    }
    .detail-grid {
        grid-template-columns: 1fr;
    }
    .enrichment-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
    }
    .tab-btn {
        white-space: nowrap;
        font-size: 12px;
        padding: 6px 14px;
    }
    .enrichment-info {
        flex-direction: column;
        gap: 4px;
    }
    .version-tag {
        font-size: 10px;
        padding: 1px 8px;
    }
    .job-id-display {
        padding: 2px 10px;
        font-size: 10px;
        margin-left: 0;
    }
    .job-id-display .job-id-value {
        max-width: 120px;
        font-size: 11px;
    }
    .job-id-display .job-id-label {
        font-size: 10px;
    }
    .job-id-copy {
        padding: 0 6px;
        font-size: 9px;
        height: 18px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .diff-table {
        font-size: 12px;
    }
    .diff-table thead th,
    .diff-table tbody td {
        padding: 4px 6px;
    }
    .modal-box {
        width: 95%;
    }
}

/* ===== Completion Guide Modal =====
   Classes injected at runtime by showCompletionGuideModal() in main.js.
   They had no styles at all, so the "Analysis Complete!" popup rendered unstyled. */
.guide-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 3000;
    display: flex;
    align-items: safe center;      /* tall dialog: scrolls instead of clipping above the viewport */
    justify-content: safe center;
    overflow: auto;
    padding: 24px 16px;
    background: rgba(15, 23, 42, 0.55);
}

.guide-modal {
    margin: auto;
    width: 100%;
    max-width: 560px;
    max-height: calc(100vh - 48px);
    overflow-y: auto;
    padding: 22px;
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    overflow-wrap: anywhere;    /* narrow screens: wrap long text instead of widening the card */
}

/* h3 / sub / option rows / footer */
.guide-modal h3, .guide-modal-footer, .guide-option {
    display: flex;
    align-items: center;
}

.guide-modal h3 { gap: 10px; font-size: 17px; margin-bottom: 6px; }
.guide-modal h3 i { color: var(--success); font-size: 20px; }
.guide-sub { margin-bottom: 16px; font-size: 14px; color: var(--text-sub); }

.guide-option {
    gap: 12px;
    padding: 12px 14px;
    margin-bottom: 8px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    cursor: pointer;
    transition: var(--transition);
    box-sizing: border-box;
    font: inherit;
    text-align: left;
    width: 100%;
}

.guide-option:hover { border-color: var(--primary); background: var(--primary-light); }
.guide-option:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.go-num { flex: 0 0 28px; height: 28px; border-radius: 50%; background: var(--primary); color: #fff; font-size: 13px; font-weight: 700; text-align: center; line-height: 28px; }
.go-body { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.go-title { font-size: 15px; font-weight: 600; }
.go-desc { font-size: 13px; color: var(--text-sub); line-height: 1.5; }
.go-arrow { color: var(--text-sub); font-size: 13px; }

.guide-modal-footer { justify-content: flex-end; flex-wrap: wrap; gap: 10px; margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--border-color); }
.guide-modal-footer button { padding: 9px 20px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 600; cursor: pointer; }
.btn-skip { background: var(--bg-color); border: 1px solid var(--border-color); color: var(--text-color); }
.btn-skip:hover { background: var(--border-color); }
.btn-go { background: var(--primary); border: none; color: #fff; }
.btn-go:hover { background: var(--primary-hover); }

/* Firefox ignores ::-webkit-scrollbar (defined at the top of this file) */
* { scrollbar-width: thin; scrollbar-color: var(--border-color) transparent; }