/* Language Commons — Main Styles */

:root {
    --color-bg: #f5f5f5;
    --color-surface: #ffffff;
    --color-header: #1a2a3a;
    --color-header-text: #ffffff;
    --color-text: #222222;
    --color-text-muted: #4a4a4a;
    --color-accent: #2c5f8a;
    --color-accent-hover: #1e4a6e;
    --color-border: #d0d0d0;
    --color-success: #2d6a4f;
    --color-warning: #9a6700;
    --color-error: #b91c1c;
    --color-info-bg: #e8f0f8;
    --font-family: Georgia, 'Times New Roman', serif;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --radius: 4px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --max-width: 1200px;
}

*, *::before, *::after { box-sizing: border-box; }

html { font-size: 100%; scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Skip link */
.skip-link {
    position: absolute;
    top: -100%;
    left: var(--spacing-md);
    background: var(--color-accent);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    z-index: 1000;
    border-radius: var(--radius);
}
.skip-link:focus { top: var(--spacing-md); }

/* Header */
.site-header {
    background: var(--color-header);
    color: var(--color-header-text);
    position: sticky;
    top: 0;
    z-index: 100;
}
.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}
.site-logo {
    font-family: var(--font-family);
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-header-text);
    text-decoration: none;
    white-space: nowrap;
}
.site-logo:hover, .site-logo:focus { text-decoration: underline; }

.nav-toggle {
    display: none;
    background: transparent;
    border: 2px solid var(--color-header-text);
    color: var(--color-header-text);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    border-radius: var(--radius);
    margin-left: auto;
    font-size: 1rem;
}
.nav-toggle:focus { outline: 3px solid var(--color-accent); outline-offset: 2px; }

.main-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs) var(--spacing-md);
}
.main-nav a {
    color: var(--color-header-text);
    text-decoration: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius);
    font-size: 0.9rem;
    white-space: nowrap;
}
.main-nav a:hover, .main-nav a:focus,
.main-nav a[aria-current="page"] {
    background: rgba(255, 255, 255, 0.15);
    outline: none;
}
.main-nav a:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; }
.nav-menu { position: relative; }
.nav-menu summary {
    color: var(--color-header-text);
    cursor: pointer;
    list-style: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius);
    font-size: 0.9rem;
    white-space: nowrap;
}
.nav-menu summary::-webkit-details-marker { display: none; }
.nav-menu summary::after { content: ' ▾'; font-size: 0.75rem; opacity: 0.75; }
.nav-menu summary:hover, .nav-menu summary:focus-visible,
.nav-menu[open] summary { background: rgba(255, 255, 255, 0.15); outline: none; }
.nav-menu summary:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; }
.main-nav ul.nav-submenu {
    position: absolute;
    top: calc(100% + var(--spacing-xs));
    left: 0;
    min-width: 11rem;
    display: block;
    padding: var(--spacing-xs);
    background: var(--color-header);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    z-index: 110;
}
.main-nav ul.nav-submenu li { margin: 0; }
.main-nav ul.nav-submenu a { display: block; padding: var(--spacing-sm) var(--spacing-md); }
.nav-logout-form { margin: 0; }
.nav-logout {
    opacity: 0.85;
    color: var(--color-header-text);
    background: transparent;
    border: 0;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius);
    font-size: 0.9rem;
    white-space: nowrap;
    cursor: pointer;
    font: inherit;
}
.nav-logout:hover, .nav-logout:focus {
    background: rgba(255, 255, 255, 0.15);
    outline: none;
}
.nav-logout:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; }
.resource-upload-form { max-width: 42rem; margin-top: var(--spacing-md); }
.optional-resource { margin-top: var(--spacing-lg); }
.optional-resource > summary { cursor: pointer; font-weight: 700; font-size: 1.05rem; list-style: none; }
.optional-resource > summary::-webkit-details-marker { display: none; }
.optional-resource > summary::after { content: ' +'; color: var(--color-accent); }
.optional-resource[open] > summary::after { content: ' −'; }
.optional-resource > summary span { color: var(--color-text-muted); font-size: 0.9rem; font-weight: 400; }
.optional-resource > summary:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 3px; }

/* Main content */
.main-content {
    flex: 1;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-lg);
    width: 100%;
}

h1 {
    font-family: var(--font-family);
    font-size: 2rem;
    margin: 0 0 var(--spacing-md);
    color: var(--color-header);
}
h2 {
    font-family: var(--font-family);
    font-size: 1.35rem;
    margin: 0 0 var(--spacing-md);
    color: var(--color-header);
}
h3 { font-size: 1.1rem; margin: var(--spacing-md) 0 var(--spacing-sm); }

.page-intro { color: var(--color-text-muted); margin-bottom: var(--spacing-lg); }

/* Cards */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1.25rem;
    min-height: 44px;
    font-size: 1rem;
    font-family: var(--font-sans);
    font-weight: 600;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    line-height: 1.4;
    text-align: center;
    transition: background 0.15s, border-color 0.15s;
}
.btn:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; }
.btn-primary { background: var(--color-accent); color: white; border-color: var(--color-accent); }
.btn-primary:hover { background: var(--color-accent-hover); border-color: var(--color-accent-hover); color: white; }
.btn-secondary { background: var(--color-surface); color: var(--color-accent); border-color: var(--color-accent); }
.btn-secondary:hover { background: var(--color-info-bg); color: var(--color-accent-hover); }
.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.875rem; }
.btn-block { display: block; width: 100%; }

/* Forms */
.form-input, .form-select, input[type="text"], input[type="url"],
input[type="password"], input[type="number"], input[type="date"],
textarea, select {
    width: 100%;
    padding: 0.6rem 0.75rem;
    font-size: 1rem;
    font-family: var(--font-sans);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-surface);
    color: var(--color-text);
}
.form-input:focus, .form-select:focus,
input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(31, 118, 105, 0.25);
}
.form-group { margin-bottom: var(--spacing-md); }
.form-group label { display: block; font-weight: 600; margin-bottom: var(--spacing-xs); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-md); }
.form-section { margin-bottom: var(--spacing-lg); }
.form-section legend {
    font-family: var(--font-family);
    font-size: 1.2rem;
    font-weight: bold;
    padding: 0 var(--spacing-sm);
    color: var(--color-header);
}
.form-actions, .filter-actions, .card-actions, .detail-actions, .dashboard-actions, .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}
.inline-form { display: inline; }
.support-message-unread { border-left: 4px solid var(--color-accent); }
.support-message-body { white-space: pre-wrap; overflow-wrap: anywhere; }
.field-error { color: #a81a1a; font-size: 0.875rem; display: block; margin-top: var(--spacing-xs); }
.form-errors { background: #fef2f2; border: 1px solid var(--color-error); padding: var(--spacing-md); border-radius: var(--radius); margin-bottom: var(--spacing-md); }
.form-checkbox { width: auto; margin-right: var(--spacing-sm); }

/* Messages */
.messages { max-width: var(--max-width); margin: 0 auto; padding: var(--spacing-md) var(--spacing-lg) 0; }
.message { padding: var(--spacing-md); border-radius: var(--radius); margin-bottom: var(--spacing-sm); }
.message-success { background: #d1fae5; border: 1px solid var(--color-success); color: var(--color-success); }
.message-error { background: #fef2f2; border: 1px solid var(--color-error); color: #a81a1a; }
.message-info, .message-warning { background: #fef9c3; border: 1px solid var(--color-warning); color: var(--color-warning); }

/* Hero */
.hero { text-align: center; margin-bottom: var(--spacing-xl); }
.hero blockquote, .hero-description {
    font-family: var(--font-family);
    font-size: 1.15rem;
    font-style: italic;
    color: var(--color-text-muted);
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    border: none;
    padding: 0;
}
.hero-search {
    display: flex;
    gap: var(--spacing-sm);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}
.hero-search .search-input { flex: 1; }
.hero-actions { justify-content: center; }

/* Stats */
.stats-bar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}
.stat-card {
    flex: 1;
    min-width: 120px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow);
}
.stat-number { display: block; font-size: 2rem; font-weight: bold; color: var(--color-accent); }
.stat-label { font-size: 0.875rem; color: var(--color-text-muted); }

/* Grids */
.home-grid, .dashboard-grid, .practice-grid, .submit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}
.filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

/* Lists */
.item-list { list-style: none; padding: 0; margin: 0; }
.item-list li { padding: var(--spacing-sm) 0; border-bottom: 1px solid var(--color-border); }
.item-list li:last-child { border-bottom: none; }
.item-list a { color: var(--color-accent); text-decoration: none; font-weight: 600; }
.item-list a:hover, .item-list a:focus { text-decoration: underline; }
.meta { font-size: 0.85rem; color: var(--color-text-muted); display: block; }

.meta-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: var(--spacing-sm); }
.meta-list div { font-size: 0.9rem; }
.meta-list dt { font-weight: 600; color: var(--color-text-muted); font-size: 0.8rem; text-transform: uppercase; }
.meta-list dd { margin: 0; }

.card-summary { color: var(--color-text-muted); }
.practice-card h2 { font-size: 1.15rem; }
.practice-card h2 a { color: var(--color-header); text-decoration: none; }
.practice-card h2 a:hover { color: var(--color-accent); }

/* Detail pages */
.detail-header { margin-bottom: var(--spacing-lg); }
.inline-meta { margin-top: var(--spacing-md); }
.detail-section { margin-bottom: var(--spacing-lg); }
.adapted-notice { background: var(--color-info-bg); padding: var(--spacing-sm) var(--spacing-md); border-radius: var(--radius); }
.disclaimer, .privacy-reminder, .demo-notice, .ai-disclaimer, .preview-banner {
    background: var(--color-info-bg);
    border-left: 4px solid var(--color-accent);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}
.ai-disclaimer blockquote { margin: 0; font-style: italic; }

.report-item {
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
}
.report-item:last-child { border-bottom: none; }

.empty-state { color: var(--color-text-muted); font-style: italic; }
.results-count { color: var(--color-text-muted); margin-bottom: var(--spacing-md); }

/* Login */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}
.login-card { max-width: 420px; width: 100%; }
.login-brand-logo { display: block; width: min(360px, 100%); height: auto; max-height: 155px; margin: 0 auto 1.25rem; object-fit: contain; }
.login-subtitle { color: var(--color-text-muted); }
.demo-notice { text-align: center; font-size: 0.95rem; }

/* Admin */
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; margin-top: var(--spacing-md); }
.admin-table th, .admin-table td { padding: var(--spacing-sm) var(--spacing-md); border: 1px solid var(--color-border); text-align: left; }
.admin-table th { background: var(--color-bg); font-weight: 600; }
.admin-actions { display: flex; flex-wrap: wrap; gap: var(--spacing-xs); align-items: center; }
.form-select-sm { width: auto; font-size: 0.85rem; padding: 0.3rem 0.5rem; }

.insights-list { padding-left: var(--spacing-lg); }
.insights-list li { margin-bottom: var(--spacing-sm); }

/* Footer */
.site-footer {
    background: var(--color-header);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-lg);
    margin-top: auto;
    font-size: 0.875rem;
}
.footer-inner { max-width: var(--max-width); margin: 0 auto; text-align: center; }
.footer-note { font-size: 0.8rem; opacity: 0.7; }

/* Responsive */
@media (max-width: 768px) {
    .nav-toggle { display: block; }
    .main-nav {
        display: none;
        width: 100%;
        order: 3;
    }
    .main-nav.is-open { display: block; }
    .main-nav ul { flex-direction: column; gap: 0; }
    .main-nav a { display: block; padding: var(--spacing-sm) var(--spacing-md); }
    .nav-menu summary { display: block; padding: var(--spacing-sm) var(--spacing-md); }
    .main-nav ul.nav-submenu { position: static; min-width: 0; border: 0; box-shadow: none; padding: 0 0 var(--spacing-xs) var(--spacing-md); }
    .main-nav ul.nav-submenu a { padding: var(--spacing-sm) var(--spacing-md); }
    .header-inner { flex-wrap: wrap; }
    .form-row { grid-template-columns: 1fr; }
    .hero-search { flex-direction: column; }
    h1 { font-size: 1.5rem; }
    .stats-bar { flex-direction: column; }
}

/* Product-facing visual layer: calm, modern, and task-first. */
:root {
    --color-bg: #f6f8f7;
    --color-header: #173f3a;
    --color-text: #20302e;
    --color-text-muted: #4a5a58;
    --color-accent: #1f7669;
    --color-accent-hover: #15594f;
    --color-border: #dce6e2;
    --color-info-bg: #e6f3ef;
    --radius: 12px;
    --shadow: 0 8px 24px rgba(23, 63, 58, 0.07);
    --max-width: 1180px;
}
.main-content { padding: 2.75rem var(--spacing-lg) 4rem; }
h1 { font-size: clamp(2rem, 4vw, 3.2rem); }
.card { border-radius: var(--radius); padding: 1.35rem; box-shadow: var(--shadow); }
.btn { border-radius: 8px; }
.hero-modern {
    text-align: left; background: linear-gradient(135deg, #e4f2ed 0%, #f7faf8 68%, #fff4e6 100%);
    border: 1px solid #d5e8e0; border-radius: 20px; padding: clamp(1.5rem, 5vw, 4rem); box-shadow: var(--shadow);
}
.home-brand { display: inline-flex; align-items: center; gap: 1rem; margin-bottom: 1.25rem; }
.home-brand-logo { display: block; width: min(300px, 74vw); height: auto; max-height: 145px; padding: .65rem .9rem; object-fit: contain; background: #fff; border: 1px solid rgba(23, 63, 58, .12); border-radius: 14px; box-shadow: 0 5px 16px rgba(23, 63, 58, .08); }
.home-brand-name { color: var(--color-header); font-family: var(--font-serif); font-size: clamp(1.35rem, 3vw, 2rem); font-weight: 800; letter-spacing: -.02em; }
.hero-modern h1 { max-width: 720px; margin-bottom: .8rem; }
.hero-modern .hero-description { margin: 0 0 1.5rem; max-width: 650px; text-align: left; font-style: normal; font-family: var(--font-sans); font-size: 1.1rem; }
.hero-kicker, .eyebrow { color: var(--color-accent); font-size: .78rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.hero-search { max-width: 720px; margin: 0 0 var(--spacing-lg); }
.hero-search-hint { color: var(--color-text-muted); font-size: .9rem; margin: -1rem 0 1.25rem; }
.form-hint { display: block; color: var(--color-text-muted); font-size: .85rem; margin-top: .35rem; }
.rating-guide { margin: 0 0 1rem; padding: .75rem 1rem; color: var(--color-text-muted); background: #f4f8f6; border-left: 3px solid var(--color-accent); font-size: .9rem; }
.invitation-link { display: grid; gap: .45rem; padding: .8rem 1rem; margin-bottom: 1rem; background: #edf7f3; border-left: 3px solid var(--color-accent); }
.home-guide-note { margin: 1.5rem 0; }
.guide-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 1.5rem; }
.guide-grid h3, .guide-step-list h3 { margin-top: 0; }
.guide-grid p, .guide-step-list p { margin-bottom: .5rem; }
.guide-step-list { display: grid; gap: 1rem; list-style: none; padding: 0; margin: 0 0 2rem; }
.guide-step-list li { display: grid; grid-template-columns: auto 1fr; gap: 1rem; align-items: start; }
.guide-step-list .path-number { font-weight: 700; color: var(--color-accent); letter-spacing: .08em; }
.guide-definition-list { display: grid; gap: 1rem; }
.guide-definition-list div { border-top: 1px solid var(--color-border); padding-top: .75rem; }
.guide-definition-list dt { font-weight: 700; }
.guide-definition-list dd { margin: .25rem 0 0; color: var(--color-text-muted); }
@media (max-width: 700px) { .guide-grid { grid-template-columns: 1fr; } }
.hero-modern .hero-actions { justify-content: flex-start; }
.hero-shortcuts { display: flex; flex-wrap: wrap; gap: .65rem 1.25rem; margin-top: 1.25rem; }
.hero-shortcuts a { color: var(--color-header); font-weight: 700; text-decoration: none; }
.hero-shortcuts a:hover { color: var(--color-accent); text-decoration: underline; }
.stats-bar .stat-card { text-align: left; border: 0; box-shadow: none; padding: 1rem 1.15rem; }
.stats-bar .stat-number { font-size: 1.7rem; }
.practice-card { display: flex; flex-direction: column; height: 100%; }
.practice-card .card-actions { margin-top: auto; padding-top: .75rem; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin: 2.25rem 0 1rem; }
.section-heading h2 { margin: 0; }
.section-heading a { color: var(--color-accent); font-weight: 700; }
.tag { display: inline-block; padding: .2rem .55rem; border-radius: 99px; background: var(--color-info-bg); color: var(--color-accent-hover); font-size: .76rem; font-weight: 700; }
.home-grid .card { height: 100%; }
.home-paths { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1rem; margin: 1.25rem 0 2rem; }
.home-path { display: flex; align-items: flex-start; gap: .8rem; padding: 1rem; color: var(--color-text); background: #fff; border: 1px solid var(--color-border); border-radius: 12px; text-decoration: none; box-shadow: 0 4px 14px rgba(23,63,58,.04); transition: transform .15s, box-shadow .15s, border-color .15s; }
.home-path:hover, .home-path:focus-visible { color: var(--color-text); border-color: #a5cfc2; box-shadow: 0 8px 22px rgba(23,63,58,.10); transform: translateY(-2px); }
.home-path-primary { background: var(--color-header); color: #fff; border-color: var(--color-header); }
.home-path-primary:hover, .home-path-primary:focus-visible { color: #fff; border-color: var(--color-header); }
.path-number { font-size: .75rem; font-weight: 800; color: var(--color-accent); letter-spacing: .08em; }
.home-path-primary .path-number { color: #a8ded1; }
.home-path strong, .home-path small { display: block; }
.home-path strong { font-size: .98rem; }
.home-path small { margin-top: .2rem; color: var(--color-text-muted); line-height: 1.35; }
.home-path-primary small { color: #d7e9e4; }
.path-arrow { margin-left: auto; color: var(--color-accent); font-size: 1.2rem; line-height: 1; }
.home-path-primary .path-arrow { color: #a8ded1; }
.detail-header { background: linear-gradient(135deg, #edf7f3, #fff); border: 1px solid #dcebe5; border-radius: 16px; padding: clamp(1.25rem, 4vw, 2.5rem); }
.filter-form { border: 1px solid #dce6e2; box-shadow: none; }
.filter-form summary { cursor: pointer; color: var(--color-header); font-weight: 800; margin-bottom: 1rem; }
.insight-hero { background: var(--color-header); color: #fff; border-radius: 16px; padding: 1.5rem; margin-bottom: 1rem; }
.insight-hero h2 { color: #fff; margin-bottom: .5rem; }
.insight-hero p { margin-bottom: 0; color: #dcebe5; }
.insight-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.insight-grid .card { margin: 0; }
.insight-grid .card h2 { display: flex; align-items: center; gap: .5rem; }
.insight-grid .card h2::before { content: ''; width: .45rem; height: 1.2rem; border-radius: 99px; background: var(--color-accent); }
.insights-list { padding-left: 1.1rem; }
.insights-list li { margin-bottom: .65rem; }
.practice-lab-layout { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr); gap: 1rem; margin: 1.5rem 0; }
.lab-original, .lab-controls, .lab-result { margin: 0; }
.lab-label { color: var(--color-accent); font-size: .75rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.lab-original h2, .lab-controls h2, .lab-result h2 { margin-top: .35rem; }
.lab-original h3 { margin-top: 1.5rem; }
.lab-controls { background: linear-gradient(135deg, #f1f8f5, #fff); }
.lab-result { margin-top: 1rem; border: 2px solid #b9ded3; }
.lab-result-header { display: flex; justify-content: space-between; gap: 1rem; align-items: start; }
.lab-status { background: #fff4d6; color: #775a00; border-radius: 99px; padding: .3rem .65rem; font-size: .78rem; font-weight: 800; white-space: nowrap; }
.adaptation-note { background: #edf7f3; border-left: 4px solid var(--color-accent); padding: .8rem 1rem; margin: 1rem 0; }
.lab-comparison { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin: 1.25rem 0; }
.lab-comparison-panel { min-width: 0; padding: 1rem; border: 1px solid var(--color-border); border-radius: 12px; background: #fff; }
.lab-comparison-original { border-top: 4px solid #aebfba; }
.lab-comparison-adapted { border-top: 4px solid var(--color-accent); background: #f5fbf8; }
.lab-comparison-panel h3 { margin: .35rem 0 .5rem; overflow-wrap: anywhere; }
.lab-comparison-panel h4 { margin: 1rem 0 .35rem; }
.lab-comparison-panel p { overflow-wrap: anywhere; }
.lab-comparison-panel .meta-list { margin: .8rem 0; }
.lab-preview-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.lab-preview-grid h3 { margin-bottom: .35rem; }
@media (max-width: 768px) { .practice-lab-layout, .lab-comparison, .lab-preview-grid { grid-template-columns: 1fr; } .lab-result-header { display: block; } .lab-status { display: inline-block; margin-top: .5rem; } }
.evidence-question { margin: 1.5rem 0 2rem; }
.evidence-question-form { display: grid; grid-template-columns: 1fr auto; gap: .75rem; align-items: end; }
.evidence-question-form label { grid-column: 1 / -1; font-weight: 700; }
.evidence-question-form .field-error { grid-column: 1 / -1; }
.ai-loading-status { grid-column: 1 / -1; display: flex; align-items: center; gap: .45rem; margin: .1rem 0 0; color: var(--color-text-muted); font-size: .9rem; }
.ai-loading-status:not([hidden])::before { content: ''; width: .8rem; height: .8rem; border: 2px solid #b9ded3; border-top-color: var(--color-accent); border-radius: 50%; animation: ai-spin .8s linear infinite; }
button:disabled { cursor: wait; opacity: .72; }
@keyframes ai-spin { to { transform: rotate(360deg); } }
.evidence-answer { border-top: 1px solid var(--color-border); margin-top: 1.25rem; padding-top: 1.25rem; }
.evidence-answer h3 { margin-bottom: .35rem; }
@media (max-width: 768px) {
    .insight-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) { .evidence-question-form { grid-template-columns: 1fr; } }