/* Shared application layout. Color tokens are defined in theme.css. */
:root {
    --header-height: 64px;
    --local-nav-height: 50px;
    --sticky-offset: calc(var(--header-height) + var(--local-nav-height));
    --green-dark: #076c49;
    --ink-500: #586b7e;
}
html { scroll-padding-top: calc(var(--sticky-offset) + 12px); }
html:has(.study-library-nav) {
    scroll-padding-top: calc(var(--header-height) + var(--study-nav-height, var(--local-nav-height)) + 12px);
}
body { background: var(--surface-page); color: var(--text-primary); }
html:has(.account-page), html:has(.today-plan-section), html:has(.study-library-nav) { scroll-behavior: auto; }
.site-header {
    height: var(--header-height);
    background: var(--surface-card);
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-subtle);
    backdrop-filter: none;
}
.nav-shell { gap: 24px; }
.brand, .brand-wordmark span { color: var(--text-primary); }
.brand-wordmark { display: inline-flex; }
.brand-wordmark strong { color: var(--green-dark); text-shadow: none; }
.brand-wordmark strong::after { display: none; }
.brand-logo { width: 30px; height: 30px; }
.beta-badge { color: #805300; background: #fff6da; border-color: #e8d7a0; font-size: 9px; }
.main-nav { align-self: center; gap: 4px; }
.main-nav .nav-label { position: static; width: auto; height: auto; margin: 0; overflow: visible; clip: auto; white-space: normal; }
.main-nav a { min-height: 40px; min-width: 88px; border-radius: 7px; color: var(--text-secondary); }
.main-nav a:hover { background: var(--surface-muted); color: var(--text-primary); }
.main-nav a.active { background: var(--surface-muted); color: var(--green-dark); }
.main-nav a::after { display: none; }
.main-nav svg { flex-shrink: 0; }
.main-nav a:focus-visible, .status-pill:focus-visible { outline-color: var(--focus-ring); outline-offset: 2px; }
.theme-toggle { margin-left: auto; }
.site-header .theme-toggle:focus-visible { outline-color: var(--focus-ring); outline-offset: 2px; }
.activity-trends :is(.trend-chart-scroll, .trend-data-table):focus-visible {
    outline-color: var(--focus-ring);
}
.quiz-question-card .reveal-answer {
    min-height: 44px;
    color: var(--state-success);
    background: var(--state-success-soft);
}
.lesson-cli-actions .text-button {
    min-height: 44px;
    padding: 8px 12px;
    border: 1px solid var(--border-subtle);
    border-radius: 7px;
    color: var(--text-secondary);
    background: var(--surface-card);
    cursor: pointer;
}
.status-pill { min-height: 40px; margin-left: 0; border-color: var(--border-subtle); border-radius: 8px; color: var(--text-secondary); }
.status-pill:hover { color: var(--text-primary); border-color: var(--text-muted); background: var(--surface-muted); }
.account-menu { position: relative; flex: none; }
.account-menu > summary { cursor: pointer; list-style: none; }
.account-menu > summary::-webkit-details-marker { display: none; }
.account-menu-caret { color: var(--text-muted); font-size: 14px; line-height: 1; transition: transform .15s ease; }
.account-menu[open] .account-menu-caret { transform: rotate(180deg); }
.account-menu > nav {
    position: absolute;
    z-index: 100;
    width: min(280px, calc(100vw - 24px));
    top: calc(100% + 8px);
    right: 0;
    padding: 7px;
    display: grid;
    gap: 2px;
    color: var(--text-primary);
    background: var(--surface-raised);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    box-shadow: var(--shadow);
}
.account-menu > nav a { min-height: 44px; padding: 9px 11px; display: flex; align-items: center; border-radius: 7px; color: var(--text-secondary); font-size: 12px; font-weight: 700; }
.account-menu > nav a:hover, .account-menu > nav a:focus-visible { color: var(--text-primary); background: var(--surface-muted); }

/* Page introductions replace the full-width promotional banners. */
main .page-intro {
    padding: 28px 0 20px;
    color: var(--text-primary);
    background: var(--surface-page);
    overflow: visible;
}
.page-intro::before, .page-intro::after { display: none; }
main .page-intro h1 {
    margin: 0 0 6px;
    font-size: clamp(26px, 3vw, 32px);
    font-weight: 730;
    line-height: 1.2;
    letter-spacing: -.035em;
}
main .page-intro h1 em { color: inherit; font-style: normal; }
main .page-intro h1 br { display: none; }
main .page-intro p,
main .page-intro .career-landing-title > div:first-child > p { color: var(--text-secondary); font-size: 14px; line-height: 1.6; margin: 0; }
.page-intro .eyebrow, .page-intro .path-role { color: var(--text-muted); margin-bottom: 10px; }
.page-intro .eyebrow > span { display: none; }
.page-intro .breadcrumbs, .page-intro .breadcrumbs a, .page-intro .career-crumbs,
.page-intro .career-crumbs a { color: var(--text-secondary); }
.page-intro .breadcrumbs, .page-intro .career-crumbs { margin-bottom: 18px; }
.page-intro .hero-grid, .page-intro .study-hero-grid { grid-template-columns: 1fr; gap: 20px; }
.page-intro .career-dashboard-title { padding: 0; gap: 18px; }
.page-intro .tracker-hero-grid { margin-top: 0; gap: 28px; align-items: start; }
.page-intro .tracker-meta { margin-top: 12px; }
.page-intro .tracker-meta span, .page-intro .tracker-meta a { border-color: var(--border-subtle); color: var(--text-secondary); }
.page-intro .quiz-title-row { gap: 20px; }
.page-intro .quiz-result-score strong { font-size: 42px; color: #ae3443; }
.page-intro.passing .quiz-result-score strong { color: var(--green-dark); }
.page-intro .quiz-result-score span, .page-intro .lesson-blueprint-label { color: var(--text-secondary); }
.page-intro .lesson-meta > span:not(.review-trust-badge) { color: var(--text-secondary); border-color: var(--border-subtle); }
.page-intro .lesson-progress-summary,
.page-intro .lesson-progress-summary > span,
.page-intro .lesson-progress-summary > small { color: var(--text-secondary); }
.page-intro .lesson-progress-summary > strong { color: var(--text-primary); }
.page-intro .lesson-progress-summary > a { color: var(--green-dark); }
main .page-intro.lesson-hero { padding-block: 24px !important; }
main .page-intro.lesson-hero h1 { font-size: clamp(24px, 3vw, 30px) !important; }
.page-intro .atlas-route-choice { border-color: var(--border-subtle); background: var(--surface-card); }
.page-intro .atlas-route-choice article { min-height: 120px; border-color: var(--border-subtle); }
.page-intro .atlas-route-choice span { color: var(--green-dark); }
.page-intro .atlas-route-choice p { margin-top: 10px; font-size: 13px; }
.page-intro .button.ghost { color: var(--text-primary); background: var(--surface-card); border-color: var(--border-subtle); }

/* Keep summaries useful without turning them into another hero. */
.page-intro .progress-title-row { align-items: center; gap: 16px; }
.page-intro .progress-stat-grid { margin-top: 24px; border-color: var(--border-subtle); background: var(--surface-card); }
.page-intro .progress-stat-grid > div { min-height: 86px; padding: 14px 18px; border-color: var(--border-subtle); background: transparent; }
.page-intro .progress-stat-grid strong { color: var(--text-primary); font-size: 24px; }
.page-intro .progress-stat-grid span { color: var(--text-secondary); font-size: 11px; letter-spacing: 0; text-transform: none; font-weight: 600; }
.page-intro .progress-stat-grid small { color: var(--text-muted); font-size: 11px; }
.page-intro .career-score-strip { margin-top: 22px; border: 1px solid var(--border-subtle); border-radius: var(--radius); background: var(--surface-card); }
.page-intro .career-score-strip > div { min-height: 76px; padding: 12px 18px; border-color: var(--border-subtle); background: transparent; }
.page-intro .career-score-strip strong, .page-intro .career-score-strip .career-score-main strong { color: var(--text-primary); font-size: 24px; }
.page-intro .career-score-strip span { color: var(--text-secondary); font-size: 11px; text-transform: none; letter-spacing: 0; }
.stats-strip { background: var(--surface-page); border-color: var(--border-subtle); }
.stats-grid { min-height: 76px; }
.stat-item strong { font-size: 23px; }
.page-section { padding-block: 32px 56px; }
.today-plan-section { padding-top: 4px; padding-bottom: 40px; }
.career-landing-content { padding-top: 4px; }
.career-landing-content > .page-shell > .career-finder,
.career-landing-content > .page-shell > .career-finder-disclosure { margin-top: 0; }
.section-heading { margin-bottom: 20px; }
.section-heading h2 { font-size: 24px; letter-spacing: -.025em; }
.section-heading p { max-width: 760px; font-size: 14px; color: var(--text-secondary); }
.objective-timeline-copy p, .certification-finish-gate p { color: var(--text-secondary); }
.section-kicker { color: var(--green-dark); letter-spacing: .07em; }
.button { box-shadow: none; }
.button.primary { box-shadow: none; }
.button:hover { transform: none; }
.study-local-nav, .roadmap-local-nav { top: var(--header-height); background: var(--surface-card); }
.study-local-nav > div, .roadmap-local-nav > div { min-height: var(--local-nav-height); }
.study-local-nav a, .roadmap-local-nav a { min-height: 44px; display: inline-flex; align-items: center; }
.account-local-links { display: flex; align-items: center; gap: 24px; }
.account-local-menu { display: none; }
.account-section-controls { margin: 0 0 20px; padding: 10px 12px; display: flex; align-items: center; justify-content: space-between; gap: 14px; color: var(--text-secondary); background: var(--surface-muted); border: 1px solid var(--border-subtle); border-radius: 9px; font-size: 12px; font-weight: 700; }
.account-section-controls[hidden] { display: none; }
.account-section-controls > div { display: flex; flex-wrap: wrap; gap: 8px; }
.account-section-controls .button { min-height: 40px; }
@media (max-width: 820px) {
    .atlas-local-nav > div { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); overflow: visible; gap: 4px; }
    .atlas-local-nav a { min-width: 0; justify-content: center; padding: 4px; font-size: 12px; line-height: 1.3; text-align: center; white-space: normal; }
}
@media (max-width: 720px) {
    .lesson-mode-nav > div {
        display: grid;
        grid-auto-flow: column;
        grid-auto-columns: minmax(0, 1fr);
        gap: 4px;
        overflow-x: visible;
    }
    .lesson-mode-nav a {
        min-width: 0;
        justify-content: center;
        padding: 4px;
        font-size: 12px;
        line-height: 1.3;
        text-align: center;
        white-space: normal;
        overflow-wrap: anywhere;
    }
}
/* Global scroll padding owns sticky-header and local-nav clearance. */
.pbq-grid, .tasks-section, .portable-progress, .browser-data-control,
.role-ladder-section, .legal-section, .community-review-section,
.account-page .account-background, .account-section, .account-flashcards,
.flashcard-deck, .tracker-graph-section, .tracker-record-section,
.study-plan-section, .supplemental-resource-section,
.tracker-page .supplemental-resource-section,
.tracker-page .adaptive-study-section, .tracker-secondary-section,
.account-danger-zone, .account-disclosure,
#role-ladder, #skills, #resources, #background, #background-form,
#confidence-model, #evidence-history, #today-plan, #active-study-track,
#built-in-banks, #private-decks, #quiz-history,
#quiz-assurance, #adaptive-timeline, #assigned-resources, #key-concepts,
#finish-lesson, #answer-review, [id^="learning-block-"], [id^="resource-"],
[id^="concept-part-"], [id^="watch-"], [id^="read-"] { scroll-margin-top: 0; }

/* Shared status surfaces for existing feedback, empty and save states. */
:where(.hosted-message, .background-save-status, .credential-empty) { line-height: 1.45; }
.hosted-message { border: 1px solid var(--state-info-border); background: var(--state-info-soft); color: var(--state-info); }
.hosted-message.success { border-color: var(--state-success-border); background: var(--state-success-soft); color: var(--state-success); }
.hosted-message.warning { border-color: var(--state-warning-border); background: var(--state-warning-soft); color: var(--state-warning); }
.hosted-message.error { border-color: var(--state-danger-border); background: var(--state-danger-soft); color: var(--state-danger); }
.site-footer { background: var(--surface-page); }
.footer-inner { gap: 12px 20px; padding-block: 24px; }
.footer-inner a { min-height: 32px; display: inline-flex; align-items: center; }

/* Keep completion and remediation useful without adding another page hero. */
.daily-session-goal {
    display: grid;
    gap: 16px;
    color: var(--text-primary);
    border-color: var(--border-subtle);
    background: var(--surface-card);
    box-shadow: none;
}
.daily-session-goal > header {
    margin: 0;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
}
.daily-session-goal h2 { margin: 3px 0 4px; color: var(--text-primary); font-size: 22px; }
.daily-session-goal p { margin: 0; color: var(--text-secondary); font-size: 13px; }
.daily-session-goal > header > strong {
    flex: none;
    padding: 7px 10px;
    color: var(--green-dark);
    border: 1px solid var(--border-subtle);
    border-radius: 999px;
    background: var(--surface-muted);
    font-size: 11px;
}
.daily-goal-checklist {
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    list-style: none;
}
.daily-goal-checklist li {
    min-width: 0;
    padding: 13px;
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr);
    align-items: center;
    gap: 10px;
    border: 1px solid var(--border-subtle);
    border-radius: 9px;
    background: var(--surface-muted);
}
.daily-goal-checklist li > span {
    width: 28px;
    height: 28px;
    display: grid;
    place-items: center;
    color: var(--text-secondary);
    border: 1px solid var(--border-strong);
    border-radius: 50%;
    font-size: 11px;
    font-weight: 800;
}
.daily-goal-checklist li > div { min-width: 0; display: grid; gap: 2px; }
.daily-goal-checklist strong { color: var(--text-primary); font-size: 13px; }
.daily-goal-checklist small { color: var(--text-secondary); font-size: 11px; line-height: 1.4; }
.daily-goal-checklist .is-complete > span {
    color: var(--state-success);
    border-color: var(--state-success-border);
    background: var(--state-success-soft);
}
.daily-goal-checklist .is-waived > span { background: var(--surface-card); }
.daily-goal-fallback {
    padding: 10px 12px;
    color: var(--state-info) !important;
    border: 1px solid var(--state-info-border);
    border-radius: 8px;
    background: var(--state-info-soft);
}
.today-completion-summary.today-wins { margin: 0 0 18px; padding: 20px; border-radius: 13px; box-shadow: none; }
.today-completion-summary.today-wins > header { margin-bottom: 0; align-items: flex-start; }
.today-completion-summary .session-finish-actions { margin-top: 0; }
.today-completed-work { padding-top: 4px; border-top: 1px solid var(--border-subtle); }
.today-completed-work > summary {
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 12px;
    font-weight: 750;
}
.today-completed-work > summary span {
    min-width: 24px;
    padding: 2px 7px;
    border-radius: 999px;
    background: var(--surface-muted);
    text-align: center;
}
.today-completed-work > summary .today-completed-work-label { padding: 0; gap: 8px; display: inline-flex; align-items: center; background: transparent; }
.today-completed-work-label i { color: var(--green-dark); font-size: 20px; font-style: normal; line-height: 1; transition: transform .15s ease; }
.today-completed-work[open] .today-completed-work-label i { transform: rotate(90deg); }
.today-streak-continued { min-height: 44px; padding: 0 14px; display: inline-flex; align-items: center; gap: 7px; color: var(--state-success); background: var(--state-success-soft); border: 1px solid var(--state-success-border); border-radius: 7px; font-size: 13px; font-weight: 750; }
.today-completed-work-list { display: grid; gap: 8px; margin: 4px 0 8px; }
.today-completed-work-list .today-plan-item { min-height: 0; padding: 12px; box-shadow: none; }
.today-completed-work-list .today-plan-item > span { width: 30px; height: 30px; }
.today-completed-work > .quiz-progress-link { padding-left: 0; }
.daily-session-goal.is-supporting { margin: 12px 0 24px; padding: 14px 16px; gap: 0; }
.daily-session-goal.is-supporting h2 { font-size: 17px; }
.daily-session-goal.is-supporting .section-kicker { font-size: 9px; }
.quiz-learning-priority { margin-bottom: 12px; }
.quiz-learning-priority .quiz-next-action { margin-bottom: 12px; padding: 20px; }
.quiz-learning-priority .quiz-next-action strong { margin-top: 5px; font-size: 19px; }
.quiz-learning-priority .quiz-next-action p { font-size: 13px; }
.quiz-learning-priority .quiz-result-actions { justify-content: flex-start; }
.quiz-next-action,
.quiz-next-action.is-review {
    color: var(--text-primary);
    border-color: var(--border-strong);
    background: var(--surface-muted);
}
.quiz-next-action span,
.quiz-next-action.is-review span { color: var(--text-secondary); }
.quiz-next-action p,
.quiz-next-action.is-review p { color: var(--text-secondary); }

@media (max-width: 900px) {
    .nav-shell { gap: 10px; }
    .main-nav a { min-width: 70px; gap: 6px; padding-inline: 8px; }
    .status-pill-label { display: none; }
    .page-intro .tracker-hero-grid { grid-template-columns: 1fr; }
}
@media (min-width: 721px) and (max-width: 900px) {
    .main-nav svg { display: none; }
}
@media (max-width: 720px) {
    :root { --header-height: 100px; --local-nav-height: 48px; }
    /* Five library links use two 44px rows, a 2px gap and a 1px border. */
    html:has(.study-library-nav > div > a:nth-child(5)) { --study-nav-height: 91px; }
    .page-shell, .nav-shell, .career-shell { width: min(calc(100% - 32px), var(--page)); }
    .nav-shell { display: flex; flex-wrap: wrap; align-content: center; gap: 0 10px; }
    .brand { height: 50px; margin-right: auto; }
    .brand-wordmark { display: inline-flex; font-size: 18px; }
    .brand-logo { margin-right: 7px; }
    .main-nav { order: 10; width: 100%; height: 50px; flex: none; gap: 2px; }
    .main-nav a { min-width: 0; min-height: 44px; flex: 1; flex-direction: column; gap: 2px; padding: 3px 1px; font-size: 10px; line-height: 1.15; }
    .main-nav svg { width: 17px; height: 17px; }
    .main-nav .nav-label { position: static; width: auto; height: auto; margin: 0; overflow: visible; clip: auto; white-space: normal; }
    .status-pill { margin-left: 0; width: 44px; min-height: 44px; padding: 0; }
    .account-menu > summary.status-pill { width: auto; min-width: 44px; }
    .account-menu-caret { display: none; }
    .theme-toggle { min-width: 44px; min-height: 44px; margin-left: 0; }
    .study-library-nav > div {
        display: grid;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 2px;
        overflow: visible;
    }
    .study-library-nav a {
        min-width: 0;
        justify-content: center;
        padding: 4px 2px;
        line-height: 1.2;
        text-align: center;
        white-space: normal;
    }
    .account-local-nav::after, .account-local-links { display: none; }
    .account-local-nav > div { min-height: var(--local-nav-height); padding: 0; overflow: visible; }
    .account-local-menu { position: relative; width: 100%; display: block; }
    .account-local-menu > summary {
        min-height: var(--local-nav-height);
        padding: 0 2px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        color: var(--text-primary);
        cursor: pointer;
        list-style: none;
        font-size: 12px;
        font-weight: 750;
    }
    .account-local-menu > summary::-webkit-details-marker { display: none; }
    .account-local-menu > summary strong { color: var(--green-dark); font-size: 11px; }
    .account-local-menu > summary strong::after { content: " +"; }
    .account-local-menu[open] > summary strong::after { content: " −"; }
    .account-local-menu > div {
        position: absolute;
        z-index: 2;
        top: 100%;
        left: 0;
        right: 0;
        padding: 8px;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 4px;
        border: 1px solid var(--border-subtle);
        border-radius: 0 0 10px 10px;
        background: var(--surface-card);
        box-shadow: var(--shadow-sm);
    }
    .account-local-menu a {
        min-height: 44px;
        padding: 7px 9px;
        display: flex;
        align-items: center;
        border-radius: 6px;
        color: var(--text-secondary);
        font-size: 12px;
        line-height: 1.25;
        white-space: normal;
    }
    .account-section-controls { align-items: stretch; flex-direction: column; }
    .account-section-controls > div, .account-section-controls .button { width: 100%; }
    .account-local-menu a:hover { color: var(--text-primary); background: var(--surface-muted); }
    main .page-intro { padding: 22px 0 16px; }
    .page-intro .progress-title-row { align-items: flex-start; }
    .page-intro .progress-stat-grid { display: flex; flex-wrap: wrap; margin-top: 20px; }
    .page-intro .progress-stat-grid > div { flex: 1 1 33%; min-width: 100px; min-height: 68px; padding: 10px 12px; border: 0; }
    .page-intro .progress-stat-grid strong { font-size: 22px; }
    .page-intro .progress-stat-grid small { display: none; }
    .page-intro .career-score-strip > div { min-height: 68px; padding: 12px; }
    .page-intro .career-score-strip span { font-size: 11px; }
    .page-section { padding-block: 24px 40px; }
    .section-heading h2 { font-size: 22px; }
    .split-heading { gap: 16px; }
    .text-link { display: inline-flex; min-height: 44px; align-items: center; }
    .stats-grid { grid-template-columns: repeat(4, 1fr); padding-block: 12px; }
    .stat-item, .stat-item:nth-child(odd) { min-height: 56px; padding: 4px 8px; border: 0; }
    .stat-item strong { font-size: 21px; }
    .stat-item > span { font-size: 10px; }
    .footer-inner { display: flex; flex-direction: row; flex-wrap: wrap; gap: 4px 18px; }
    .footer-inner > span { width: 100%; }
    .footer-inner a { min-height: 44px; }
    .daily-session-goal > header { flex-direction: column; gap: 10px; }
    .daily-goal-checklist { grid-template-columns: 1fr; }
    .today-completion-summary.today-wins { padding: 16px; }
    .today-completion-summary .session-finish-actions { align-items: stretch; flex-direction: column; }
    .today-completion-summary .session-finish-actions .button { width: 100%; }
    .quiz-learning-priority .quiz-result-actions { align-items: stretch; }
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .button, .main-nav a { transition: none; }
}