/* Shared app chrome and surfaces. Loaded after module and colour-mode styles. */
:root {
    --ui-bg: #f4f7f5;
    --ui-surface: #ffffff;
    --ui-soft: #eef4f0;
    --ui-border: #dce4df;
    --ui-text: #18201d;
    --ui-muted: #5d6a65;
    --ui-accent: #2d7358;
    --ui-shadow: 0 2px 8px rgb(24 32 29 / 3%);
    --ui-radius: 20px;
}

html[data-theme="dark"] {
    --ui-bg: #0e1512;
    --ui-surface: #17211d;
    --ui-soft: #22322c;
    --ui-border: #344b41;
    --ui-text: #edf5f1;
    --ui-muted: #afbeb7;
    --ui-accent: #8bd5b5;
    --ui-shadow: none;
}

html body[data-module-theme] { background: var(--ui-bg); }
html[data-theme] body[data-module-theme] { background: var(--ui-bg); }

#app h1 {
    font-size: clamp(1.7rem, 3.6vw, 2.25rem);
    font-weight: 700;
    line-height: 1.18;
    letter-spacing: -0.035em;
}

#app h2 { font-weight: 650; letter-spacing: -0.025em; line-height: 1.25; }
#app h3 { font-weight: 650; line-height: 1.35; }
#app .eyebrow { font-size: .7rem; font-weight: 650; letter-spacing: .1em; }
#app .app-header { margin-bottom: 24px; }
#app .app-header p:not(.eyebrow) { line-height: 1.6; }

html[data-theme] :is(.home-daily-session, .home-continue, .home-today-plan,
    .home-progress-preview, .home-latest-blog, .hub-card, .practice-smart-card,
    .learning-subject-card, .learning-lesson-hero, .learning-lesson-section,
    .daily-question-card, .daily-results-card, .medication-hero,
    .medication-activity-card, .clinical-case-header) {
    border-radius: var(--ui-radius);
    border-color: var(--ui-border);
    background: var(--ui-surface);
    box-shadow: var(--ui-shadow);
}

html[data-theme] :is(.primary-button, .secondary-button, .back-button, .danger-button,
    .home-daily-session__start, .home-today-task__action) {
    min-height: 46px;
    border-radius: 12px;
    font-weight: 600;
    line-height: 1.35;
    box-shadow: none;
}

button, a { touch-action: manipulation; }
.primary-navigation { gap: 24px; min-height: 68px; }
.primary-navigation__brand { gap: 10px; }
.primary-navigation__brand-mark { width: 46px; height: 46px; flex-basis: 46px; }
.primary-navigation__brand > strong { font-size: .94rem; font-weight: 650; }
.primary-navigation__tab { gap: 7px; min-height: 48px; }
.primary-navigation__tab strong { font-weight: 600; }
.primary-navigation__tab::before { display: none; }
.primary-navigation__icon { width: 20px; height: 20px; flex: 0 0 auto; }
.primary-navigation__tab--home { display: none; }

@media (min-width: 651px) and (max-width: 950px) {
    .primary-navigation__brand > strong { display: none; }
    .primary-navigation { gap: 16px; }
    .primary-navigation__tab { padding-inline: 6px; font-size: .76rem; }
}

.home-dashboard { gap: 24px; }
.home-header { padding-bottom: 0; }
.home-daily-session { padding: 26px; border-top-width: 3px; }
.home-daily-session__content h2 { margin: 12px 0 8px; font-size: 1.65rem; }
.home-daily-session__content > p:not(.eyebrow) { font-size: .96rem; line-height: 1.6; }
.home-daily-session__meta { display: flex; flex-wrap: wrap; gap: 8px 16px; margin: 18px 0; color: var(--ui-muted); font-size: .8rem; }
.home-daily-session__meta span + span::before { content: "·"; margin-right: 16px; }
.home-daily-session__start { width: 100%; max-width: none; }
.home-daily-session__reassurance { margin-top: 10px; font-size: .75rem; }

.home-continue { padding: 24px; border: 1px solid var(--ui-border); }
.home-continue__heading { display: flex; align-items: center; gap: 12px; }
.home-continue__heading h2 { margin: 3px 0 0; font-size: 1.25rem; }
.home-continue__heading .eyebrow { margin: 0; }
.home-continue__icon { display: grid; place-items: center; width: 42px; height: 42px; flex: 0 0 auto; border-radius: 12px; background: var(--ui-soft); color: var(--ui-accent); }
.home-continue__icon svg { width: 23px; height: 23px; }
.home-continue > p { margin: 14px 0 18px; color: var(--ui-muted); font-size: .92rem; line-height: 1.6; }
.home-continue__actions { display: flex; flex-wrap: wrap; gap: 10px; }
.home-continue__actions button { display: flex; align-items: center; justify-content: center; gap: 16px; flex: 1; padding: 12px 16px; }
.home-continue__actions button[aria-busy="true"] { cursor: progress; }

.home-today-plan { display: block; padding: 0; border: 1px solid var(--ui-border); }
.home-today-plan__summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 24px; list-style: none; cursor: pointer; color: var(--ui-text); }
.home-today-plan__summary::-webkit-details-marker { display: none; }
.home-today-plan__summary strong { display: block; font-weight: 600; }
.home-today-plan__summary small { display: block; margin-top: 5px; color: var(--ui-muted); font-size: .8rem; }
.home-today-plan__summary > svg { width: 18px; height: 18px; flex: 0 0 auto; transition: transform 150ms ease; }
.home-today-plan[open] .home-today-plan__summary > svg { transform: rotate(90deg); }
.home-today-plan__summary:focus-visible { outline: 3px solid var(--ui-accent); outline-offset: -4px; border-radius: var(--ui-radius); }
.home-today-plan__details { padding: 0 24px 20px; }
.home-today-plan__steps { gap: 0; }
.home-today-task { grid-template-columns: minmax(0, 1fr) auto; gap: 14px; padding: 18px 0; background: transparent; border: 0; border-top: 1px solid var(--ui-border); border-radius: 0; }
.home-today-task h3 { font-size: 1rem; }
.home-today-task__action { font-size: .82rem; }
.home-dashboard .intro { margin: 2px 0 -10px; }
.home-dashboard .intro h2 { font-size: 1.3rem; }
.home-dashboard .topic-grid { gap: 12px; }
.home-dashboard .topic-card { min-height: 0; padding: 20px; border-radius: var(--ui-radius); box-shadow: none; }
.home-dashboard .topic-card h3 { font-size: 1.12rem; }
.home-progress-preview { padding: 22px; }
.home-latest-blog { padding: 22px; }
.home-latest-blog__heading h2 { font-size: 1.15rem; }

.hub-grid { gap: 14px; }
.hub-card { padding: 22px; min-height: 0; align-items: start; }
.hub-card__icon { width: 44px; height: 44px; border-radius: 12px; }
.hub-card__body { gap: 7px; }
.hub-card__body > strong { font-weight: 650; font-size: 1.15rem; line-height: 1.3; }
.hub-card__body > small:first-child { font-weight: 600; font-size: .68rem; }
.hub-card__body > strong + span { font-size: .88rem; line-height: 1.55; }
.hub-card__body > strong + span, .hub-card__body > em,
.hub-page-header p:last-child { color: var(--ui-muted); }
.hub-card__body > small:first-child, .hub-card__action { color: var(--ui-accent); }
.hub-card__mascot { opacity: .06; }
.hub-card__action { margin-top: 6px; font-weight: 600; }
.learning-subject-card { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 16px; min-height: 0; padding: 22px; }
.learning-subject-card__icon { width: 44px; height: 44px; border-radius: 12px; }
.learning-subject-card__body { gap: 8px; }
.learning-subject-card__body > strong { font-size: 1.2rem; font-weight: 650; }
.learning-subject-card__body > strong + span { font-size: .9rem; line-height: 1.55; color: var(--ui-muted); }
.learning-subject-card__body > small { font-size: .7rem; font-weight: 600; }
.learning-subject-card__mascot { opacity: .06; }

.daily-question-card, .daily-results-card { padding: 26px; }
.daily-answer { min-height: 64px; }
.daily-answer strong { font-weight: 600; }
.daily-answer:not(.daily-answer--correct):not(.daily-answer--wrong) > span { background: var(--ui-soft); color: var(--ui-muted); }
.daily-answer-feedback-heading span, .daily-deepen-button { color: var(--ui-accent); font-weight: 600; box-shadow: none; }
.daily-deepen-button { min-height: 44px; }
.daily-session-progress { background: var(--ui-border); }
.daily-session-progress > span { background: var(--ui-accent); }
.daily-question-meta { color: var(--ui-accent); font-weight: 600; }
.daily-report-question { color: var(--ui-muted); }
html[data-theme="dark"] .daily-question-meta span:last-child { background: var(--ui-soft); color: var(--ui-accent); }
.daily-question-card > h1 { margin-bottom: 18px; }
.daily-report-question { font-size: .75rem; font-weight: 500; margin-bottom: 14px; }
.daily-results-card h1 { margin-bottom: 8px; }
.daily-results-actions { gap: 10px; }
.daily-xp-summary { border-color: var(--ui-border); background: var(--ui-surface); box-shadow: none; }
.daily-xp-summary__total { background: var(--ui-soft); }
.daily-xp-summary__total span { color: var(--ui-muted); font-weight: 600; }
.daily-xp-summary__total strong, .daily-xp-summary li strong { color: var(--ui-accent); font-weight: 600; }
.daily-xp-summary li { color: var(--ui-muted); border-color: var(--ui-border); }
.daily-results-mix span { background: var(--ui-soft); color: var(--ui-muted); border-color: var(--ui-border); }
.daily-results-mix strong { color: var(--ui-text); }
.daily-next-session .primary-button { display: flex; align-items: center; justify-content: center; gap: 8px; }
.button-icon { width: 18px; height: 18px; flex: 0 0 auto; }
.clinical-case-scene__narrative { font-family: inherit; font-size: 1.05rem; }
.clinical-case-header { padding: 24px; }
.auth-password-toggle svg { width: 21px; height: 21px; }
.auth-password-toggle__slash { display: none; }
.auth-password-toggle[aria-pressed="true"] .auth-password-toggle__slash { display: block; }
.setting-row > span > strong { font-weight: 600; }
.medication-hero { padding: 28px; gap: 24px; grid-template-columns: minmax(0, 1fr); }
.medication-hero h1 { margin-top: 8px; }
.medication-quick-start { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.medication-quick-start button { padding: 12px 18px; }
.medication-hero .medication-quick-start__meta { margin-top: 12px; font-size: .8rem; }
.medication-hero__formula { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; padding: 16px; border: 0; border-radius: 12px; box-shadow: none; background: var(--ui-soft); color: var(--ui-text); font-size: .9rem; font-weight: 600; }
.medication-hero__formula strong { padding: 0; background: none; color: inherit; }
.settings-body .setting-row { min-height: 76px; }
.settings-help { display: grid; margin-top: 12px; }
.settings-help h3 { margin: 14px 0 6px; font-size: 1rem; font-weight: 600; }
.settings-help a, .settings-help button { display: block; min-height: 44px; padding: 12px 0; border: 0; border-bottom: 1px solid var(--ui-border); background: transparent; color: var(--ui-accent); font: inherit; font-size: .9rem; text-align: left; text-decoration: none; cursor: pointer; }
.settings-help a:hover, .settings-help button:hover { text-decoration: underline; }
.settings-help a:focus-visible, .settings-help button:focus-visible { outline: 2px solid var(--ui-accent); outline-offset: 2px; }
.native-notification-settings { display: none; }
html[data-native-notifications="true"] .native-notification-settings { display: flex; }
html[data-native-app="ios"] .site-footer { display: none; }
body:has(.daily-question-card, .daily-results-card, .first-visit-question, .medication-practice-page, .clinical-case-play) .site-footer { display: none; }

@media (max-width: 650px) {
    html { scroll-padding-bottom: 90px; }
    body { padding-bottom: calc(66px + env(safe-area-inset-bottom, 0px)); }
    #app { width: calc(100% - 32px); padding-top: 24px; padding-bottom: 32px; }
    #primary-navigation-root { overflow: visible; backdrop-filter: none; background: var(--ui-surface); box-shadow: none; }
    #primary-navigation-root .primary-navigation { display: flex; justify-content: space-between; width: calc(100% - 24px); min-height: 60px; padding: 4px 0; gap: 8px; }
    #primary-navigation-root .primary-navigation__brand { display: flex; gap: 8px; }
    #primary-navigation-root .primary-navigation__brand > strong { display: inline; font-size: .85rem; }
    #primary-navigation-root .primary-navigation__brand-mark { width: 38px; height: 38px; flex-basis: 38px; }
    #primary-navigation-root .primary-navigation__tabs {
        position: fixed; right: 0; bottom: 0; left: 0;
        display: grid; grid-template-columns: repeat(5, minmax(0, 1fr));
        min-height: 66px; padding: 4px 8px calc(4px + env(safe-area-inset-bottom, 0px));
        overflow: visible; border-top: 1px solid var(--ui-border);
        background: var(--ui-surface); z-index: 701;
    }
    #primary-navigation-root .primary-navigation__tab {
        display: flex; flex-direction: column; gap: 4px; justify-content: center;
        min-width: 0; min-height: 56px; padding: 6px 0;
        border-radius: 12px; font-size: .65rem; color: var(--ui-muted) !important;
    }
    .primary-navigation__icon { width: 22px; height: 22px; }
    .primary-navigation__tab::after { display: none; }
    #primary-navigation-root .primary-navigation__tab--active { color: var(--ui-accent) !important; background: var(--ui-soft); }
    #primary-navigation-root .primary-navigation__actions { gap: 4px; }
    #primary-navigation-root .primary-navigation__settings,
    #primary-navigation-root .primary-navigation__actions .account-button { width: 44px; height: 44px; min-width: 44px; min-height: 44px; border: 0; background: transparent; }
    .home-daily-session, .home-continue { padding: 22px; }
    .medication-hero { padding: 22px; }
    .medication-quick-start { flex-direction: column; }
    .home-daily-session__content > p:not(.eyebrow) { font-size: .92rem; }
    .home-daily-session__meta { font-size: .75rem; gap: 8px; }
    .home-daily-session__meta span + span::before { margin-right: 8px; }
    .home-continue__actions { flex-direction: column; }
    .home-continue__actions button { width: 100%; }
    .home-today-plan__summary { padding: 20px; }
    .home-today-plan__details { padding: 0 20px 12px; }
    .home-today-task { grid-template-columns: minmax(0, 1fr); }
    .home-today-task__action { justify-self: start; }
    .hub-card { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 14px; padding: 20px; }
    .hub-card__icon { width: 40px; height: 40px; }
    .hub-card__body > strong { font-size: 1.08rem; }
    .daily-question-card, .daily-results-card { padding: 20px; }
    #app .daily-question-card > h1 { font-size: 1.4rem; }
    .daily-answer { padding: 12px; }
    .back-button { width: auto; max-width: 100%; }
    .learning-path-header .back-button { max-width: calc(100% - 92px); font-size: .82rem; }
    .learning-path-header__badge { flex: 0 0 auto; font-size: .72rem; white-space: nowrap; }
    .clinical-case-header { padding: 20px; }
}

@media (prefers-reduced-motion: reduce) {
    .home-today-plan__summary > svg { transition: none; }
}