:root {
    --tc-bg: #f7f4ec;
    --tc-surface: #fffdf8;
    --tc-surface-soft: #edf8f5;
    --tc-primary: #0f766e;
    --tc-primary-dark: #0b4f4a;
    --tc-primary-soft: #d9f2ee;
    --tc-accent: #d85b18;
    --tc-accent-soft: #fff0e5;
    --tc-text: #102729;
    --tc-muted: #5f7372;
    --tc-border: #b9dfda;
    --tc-shadow: 0 18px 40px rgba(16, 39, 41, 0.12);
    --bg: var(--tc-bg);
    --surface: var(--tc-surface);
    --surface-2: var(--tc-surface-soft);
    --ink: var(--tc-text);
    --muted: var(--tc-muted);
    --line: var(--tc-border);
    --primary: var(--tc-primary);
    --primary-ink: #ffffff;
    --accent: var(--tc-accent);
    --sun: #f2b56b;
    --ok: #2f7a4f;
    --warn: #9a5c16;
    --danger: #9e3f35;
    --shadow: var(--tc-shadow);
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
    background: var(--bg);
    color: var(--ink);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    letter-spacing: 0;
}

body {
    background:
        linear-gradient(180deg, rgba(255, 253, 248, .96), rgba(247, 244, 236, .96) 24rem),
        var(--bg);
    min-height: 100%;
    margin: 0;
}

a {
    color: var(--primary);
}

button,
input,
select,
textarea {
    font: inherit;
}

code {
    background: #ece7dc;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: .1rem .3rem;
}

.topbar {
    align-items: center;
    backdrop-filter: blur(14px);
    background: rgba(255, 253, 248, .94);
    border-bottom: 1px solid var(--line);
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    padding: 1rem clamp(1rem, 4vw, 2rem);
    position: sticky;
    top: 0;
    z-index: 20;
}

body.area-participant .topbar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: .7rem;
}

.sr-only {
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    height: 1px;
    overflow: hidden;
    position: absolute;
    white-space: nowrap;
    width: 1px;
}

.brand {
    align-items: center;
    color: var(--ink);
    display: inline-flex;
    gap: .7rem;
    min-width: 0;
    text-decoration: none;
}

.brand-mark {
    align-items: center;
    background: linear-gradient(145deg, var(--tc-primary), var(--tc-primary-dark));
    border-radius: 8px;
    color: var(--primary-ink);
    display: inline-flex;
    font-size: 1.15rem;
    font-weight: 900;
    height: 3.25rem;
    justify-content: center;
    letter-spacing: .01em;
    width: 3.25rem;
}

.brand-copy {
    display: grid;
    gap: .03rem;
}

.brand-copy strong {
    font-size: clamp(1.25rem, 2.4vw, 1.9rem);
    line-height: 1;
}

.brand small {
    color: var(--muted);
    display: block;
    font-size: .78rem;
    margin-top: .05rem;
}

.brand-context {
    color: var(--tc-primary-dark) !important;
    font-size: .72rem !important;
    font-weight: 800;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.main-nav {
    display: flex;
    flex-wrap: wrap;
    gap: .35rem;
    justify-content: flex-end;
}

.main-nav a {
    align-items: center;
    border-radius: 7px;
    color: var(--ink);
    display: inline-flex;
    gap: .35rem;
    padding: .45rem .65rem;
    text-decoration: none;
}

.main-nav a.icon-nav {
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--tc-primary-dark);
    height: 2.55rem;
    padding: 0;
    width: 2.55rem;
}

.main-nav a.icon-nav .tc-icon {
    height: 1.25rem;
    width: 1.25rem;
}

.main-nav a:hover,
.main-nav a:focus-visible {
    background: var(--tc-primary-soft);
    color: var(--tc-primary-dark);
}

.language-switcher {
    margin-left: 0;
}

.language-switcher label {
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--tc-primary-dark);
    display: inline-flex;
    gap: .35rem;
    min-height: 2.45rem;
    padding: .2rem .55rem;
}

.language-switcher select {
    background: transparent;
    border: 0;
    color: var(--tc-primary-dark);
    font-size: 1.25rem;
    font-weight: 800;
    min-height: 2rem;
    padding: .15rem .3rem;
    width: 3.2rem;
}

.version-pill {
    color: var(--muted);
    font-size: .72rem;
    font-weight: 800;
    white-space: nowrap;
}

.compact-hero {
    margin-bottom: 1rem;
}

.compact-hero h1 {
    color: var(--accent);
    font-size: clamp(1.28rem, 5.7vw, 2rem);
    line-height: 1.05;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.home-actions {
    grid-template-columns: 1fr;
    max-width: 760px;
}

.focus-panel,
.focus-grid {
    margin-top: 1rem;
}

.focus-grid {
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.focus-tile {
    align-items: flex-start;
    gap: .65rem;
}

.focus-tile h2,
.focus-panel h2 {
    font-size: clamp(1.05rem, 3.8vw, 1.35rem);
    margin: 0;
}

.chip-list {
    display: flex;
    flex-wrap: wrap;
    gap: .45rem;
}

.tc-icon {
    display: inline-block;
    flex: 0 0 auto;
    height: 1.12em;
    stroke-width: 2.1;
    vertical-align: -0.18em;
    width: 1.12em;
}

.brand-mark .tc-icon {
    height: 1.45rem;
    width: 1.45rem;
}

.page-shell {
    margin: 0 auto;
    max-width: 1180px;
    padding: clamp(1rem, 3vw, 2rem);
}

.site-footer {
    color: var(--muted);
    display: flex;
    flex-wrap: wrap;
    gap: .6rem 1.4rem;
    justify-content: center;
    padding: 2rem 1rem;
}

.hero-panel {
    align-items: center;
    display: grid;
    gap: 2rem;
    grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr);
    min-height: 62vh;
}

.hero-panel h1,
.page-heading h1 {
    font-size: clamp(2rem, 5vw, 4.3rem);
    line-height: 1.05;
    margin: .2rem 0 .8rem;
}

.lead {
    color: var(--muted);
    font-size: 1.15rem;
    line-height: 1.6;
    max-width: 42rem;
}

.eyebrow {
    color: var(--accent);
    font-size: .82rem;
    font-weight: 800;
    margin: 0;
    text-transform: uppercase;
}

.sample-card,
.panel,
.stat-card,
.tile,
.suggestion-card,
.partner-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.sample-card {
    display: grid;
    gap: .8rem;
    padding: 2rem;
    transform: rotate(1.5deg);
}

.sample-card span {
    color: var(--muted);
}

.sample-card strong {
    font-size: 2rem;
}

.panel {
    margin: 1rem 0;
    padding: clamp(1rem, 2vw, 1.4rem);
}

.panel.narrow,
.narrow {
    margin-left: auto;
    margin-right: auto;
    max-width: 680px;
}

.page-heading {
    margin-bottom: 1.2rem;
}

.page-heading p:not(.eyebrow) {
    color: var(--muted);
    max-width: 720px;
}

.button-row,
.action-grid,
.practice-actions {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: .7rem;
}

.button,
.mini-button,
.status-chip {
    align-items: center;
    border: 1px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    display: inline-flex;
    gap: .45rem;
    font-weight: 750;
    justify-content: center;
    min-height: 2.55rem;
    padding: .62rem .9rem;
    text-decoration: none;
}

.button .tc-icon,
.mini-button .tc-icon,
.status-chip .tc-icon {
    height: 1.08em;
    width: 1.08em;
}

.button.primary {
    background: var(--tc-primary-dark);
    color: var(--primary-ink);
}

.button.soft,
.mini-button,
.status-chip {
    background: var(--tc-primary-soft);
    border-color: var(--line);
    color: var(--primary);
}

.button.ghost,
.mini-button.subtle {
    background: transparent;
    border-color: var(--line);
    color: var(--ink);
}

.button.danger {
    background: #8f2f18;
    color: #fff7ed;
}

.mini-button {
    min-height: 2.1rem;
    padding: .35rem .55rem;
}

.stacked-form,
.card-form {
    display: grid;
    gap: .9rem;
}

label {
    color: var(--muted);
    display: grid;
    gap: .35rem;
    font-weight: 700;
}

input,
select,
textarea {
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 7px;
    color: var(--ink);
    min-height: 2.7rem;
    padding: .65rem .75rem;
    width: 100%;
}

textarea {
    min-height: 5.5rem;
    resize: vertical;
}

fieldset {
    border: 1px solid var(--line);
    border-radius: 8px;
    margin: 0;
    padding: 1rem;
}

legend {
    color: var(--ink);
    font-weight: 800;
    padding: 0 .35rem;
}

.check-row {
    align-items: center;
    display: flex;
    flex-direction: row;
    gap: .5rem;
}

.check-row input,
.check-grid input {
    min-height: auto;
    width: auto;
}

.form-grid,
.practice-filters {
    display: grid;
    gap: .85rem;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.language-chip {
    align-items: center;
    background: var(--tc-surface-soft);
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--ink);
    display: inline-flex;
    font-weight: 800;
    gap: .45rem;
    min-height: 2rem;
    padding: .28rem .7rem .28rem .35rem;
}

.flag-badge {
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 999px;
    display: inline-flex;
    font-size: 1rem;
    height: 1.55rem;
    justify-content: center;
    line-height: 1;
    width: 1.55rem;
}

.flag-icon {
    display: block;
    height: 1rem;
    object-fit: contain;
    width: 1.2rem;
}

.language-select {
    display: flex;
    flex-wrap: wrap;
    gap: .55rem;
}

.split-layout {
    align-items: start;
    display: grid;
    gap: 1rem;
    grid-template-columns: minmax(280px, .7fr) minmax(0, 1.3fr);
}

.stat-grid,
.tile-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.stat-grid.compact {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.stat-card {
    background: linear-gradient(180deg, #fffdf8, #f5fbf9);
    padding: 1rem;
}

.stat-card strong {
    color: var(--tc-primary-dark);
    display: block;
    font-size: 2rem;
}

.stat-card span,
.muted {
    color: var(--muted);
}

.tile {
    color: var(--ink);
    display: grid;
    gap: .35rem;
    min-height: 8.5rem;
    padding: 1.2rem;
    text-decoration: none;
}

.tile .tc-icon {
    color: var(--tc-primary);
    height: 1.9rem;
    margin-bottom: .25rem;
    width: 1.9rem;
}

.app-actions {
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    margin-bottom: 1.1rem;
}

.app-actions .tile {
    align-items: center;
    grid-template-columns: auto minmax(0, 1fr);
    min-height: 6.3rem;
}

.app-actions .tile .tc-icon,
.language-tile > .tc-icon {
    align-items: center;
    background: var(--tc-primary-soft);
    border-radius: 999px;
    display: inline-flex;
    height: 3rem;
    justify-content: center;
    padding: .65rem;
    width: 3rem;
}

.app-actions .tile strong,
.app-actions .tile span {
    grid-column: 2;
}

.language-summary {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.language-tile {
    align-items: center;
    border-color: var(--tc-primary);
    grid-template-columns: auto minmax(0, 1fr);
    min-height: 6.6rem;
}

.language-tile::after {
    color: var(--tc-primary);
    content: "›";
    font-size: 2.5rem;
    grid-column: 3;
    grid-row: 1 / span 3;
}

.language-tile strong,
.language-tile span,
.language-tile small {
    grid-column: 2;
}

.language-tile small {
    color: var(--muted);
    font-weight: 750;
}

.app-footer-nav {
    align-items: center;
    backdrop-filter: blur(14px);
    background: rgba(255, 253, 248, .95);
    border-top: 1px solid var(--line);
    bottom: 0;
    display: grid;
    gap: .35rem;
    grid-template-columns: repeat(3, minmax(0, 1fr)) auto;
    left: 0;
    padding: .45rem .75rem calc(.45rem + env(safe-area-inset-bottom));
    position: fixed;
    width: 100%;
    z-index: 30;
}

.area-participant .page-shell {
    padding-bottom: 5.8rem;
}

.app-footer-nav a {
    align-items: center;
    color: var(--tc-primary-dark);
    display: grid;
    font-size: .74rem;
    font-weight: 800;
    gap: .15rem;
    justify-items: center;
    min-height: 2.8rem;
    text-decoration: none;
}

.app-footer-nav .tc-icon {
    height: 1.35rem;
    width: 1.35rem;
}

.footer-version {
    color: var(--muted);
    font-size: .7rem;
    font-weight: 800;
    padding-inline: .35rem;
    white-space: nowrap;
}

.tile:hover,
.tile:focus-visible {
    border-color: var(--primary);
    transform: translateY(-1px);
}

.tile strong {
    display: block;
    font-size: 1.25rem;
    margin-bottom: .55rem;
}

.tile span {
    color: var(--muted);
}

.notice {
    border-radius: 8px;
    margin: 1rem 0;
    padding: .9rem 1rem;
}

.notice-success {
    background: #e5f3ea;
    border: 1px solid #b9dec7;
    color: var(--ok);
}

.notice-warning {
    background: #fff2d8;
    border: 1px solid #efd097;
    color: var(--warn);
}

.notice-info {
    background: #e8f2f2;
    border: 1px solid #c5dcda;
    color: var(--primary);
}

.responsive-table {
    overflow-x: auto;
}

table {
    border-collapse: collapse;
    min-width: 720px;
    width: 100%;
}

th,
td {
    border-bottom: 1px solid var(--line);
    padding: .75rem;
    text-align: left;
    vertical-align: top;
}

th {
    color: var(--muted);
    font-size: .82rem;
    text-transform: uppercase;
}

.table-actions {
    align-items: flex-start;
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
}

.text-link {
    font-weight: 750;
}

.token-preview {
    font-size: .78rem;
    min-width: 260px;
}

.mail-preview {
    background: var(--tc-accent-soft);
    border-radius: 8px;
    overflow-x: auto;
    padding: 1rem;
    white-space: pre-wrap;
}

.check-grid {
    display: grid;
    gap: .55rem;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.translation-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.translation-grid.two {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.translation-box {
    background: #fbfffd;
}

.advice-list {
    display: grid;
    gap: .55rem;
    margin: 0 0 1rem;
    padding-left: 1.2rem;
}

.suggestion-list,
.partner-card-list,
.card-list {
    display: grid;
    gap: 1rem;
}

.suggestion-card,
.partner-card,
.list-card {
    display: grid;
    gap: 1rem;
    padding: 1rem;
}

.list-card {
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
}

.list-card:hover {
    border-color: var(--primary);
}

.list-card strong,
.list-card span,
.list-card small {
    display: block;
}

.list-card span,
.list-card small {
    color: var(--muted);
    margin-top: .2rem;
}

.list-card.compact-row {
    align-items: center;
    flex-direction: row;
}

.favorite-lesson-card {
    padding-right: 4.2rem;
    position: relative;
}

.lesson-card-favorite-form {
    position: absolute;
    right: .75rem;
    top: .75rem;
}

.lesson-card-favorite-button {
    align-items: center;
    background: rgba(255, 253, 248, .94);
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--tc-primary-dark);
    cursor: pointer;
    display: inline-flex;
    font: inherit;
    font-size: 1.15rem;
    font-weight: 900;
    height: 2.35rem;
    justify-content: center;
    line-height: 1;
    padding: 0;
    transition: box-shadow .18s ease, transform .18s ease;
    width: 2.35rem;
}

.lesson-card-favorite-button.is-favorite {
    background: var(--tc-accent-soft);
    border-color: rgba(216, 91, 24, .38);
    color: var(--tc-accent);
}

.lesson-card-favorite-button:hover,
.lesson-card-favorite-button:focus-visible {
    box-shadow: 0 8px 18px rgba(216, 91, 24, .16);
    transform: scale(1.05);
}

.compact-card-grid {
    gap: .35rem;
}

.card-grid-header,
.card-grid-row {
    align-items: center;
    display: grid;
    grid-template-columns: 2rem 2rem minmax(170px, 1.35fr) minmax(150px, 1fr) minmax(120px, 1fr) minmax(76px, .5fr) 2.6rem;
}

.card-grid-header {
    color: var(--muted);
    font-size: .76rem;
    font-weight: 900;
    gap: .55rem;
    padding: 0 .65rem .2rem;
    text-transform: uppercase;
}

.card-grid-row {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: none;
    gap: .55rem;
    min-height: 2.9rem;
    padding: .38rem .55rem;
}

.card-grid-row:hover {
    background: #fbfffd;
}

.grid-select {
    align-items: center;
    display: inline-flex;
    justify-content: center;
}

.grid-select input {
    min-height: auto;
    width: auto;
}

.grid-main,
.grid-cell {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.card-grid-row .grid-main {
    color: var(--tc-text);
    display: block;
    font-size: .98rem;
    margin: 0;
}

.card-grid-row .grid-cell {
    color: var(--muted);
    display: block;
    font-size: .9rem;
    margin: 0;
}

.card-grid-row .grid-cell.compact {
    font-size: .82rem;
    font-weight: 800;
}

.status-dot {
    border: 2px solid var(--line);
    border-radius: 999px;
    display: inline-block;
    height: .95rem;
    justify-self: center;
    width: .95rem;
}

.status-dot.status-published {
    background: #23b26d;
    border-color: #168b55;
}

.status-dot.status-needs_review {
    background: #f59e0b;
    border-color: #c56f05;
}

.status-dot.status-inactive {
    background: #94a3a5;
    border-color: #647173;
}

.icon-button {
    align-items: center;
    background: var(--tc-primary-soft);
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--tc-primary-dark);
    display: inline-flex;
    height: 2.15rem;
    justify-content: center;
    text-decoration: none;
    width: 2.15rem;
}

.icon-button:hover,
.icon-button:focus-visible {
    background: var(--tc-primary);
    color: #ffffff;
}

.icon-button .tc-icon {
    height: 1.05rem;
    width: 1.05rem;
}

.inline-proposal {
    display: grid;
    gap: .75rem;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.practice-stage {
    align-items: center;
    display: grid;
    gap: 1rem;
    justify-items: center;
    margin: 1rem auto;
    max-width: 720px;
}

.practice-meta {
    align-items: center;
    color: var(--muted);
    display: flex;
    flex-wrap: wrap;
    gap: .8rem;
    justify-content: center;
    width: 100%;
}

.practice-meta span,
.practice-help-toggle {
    align-items: center;
    background: var(--tc-primary-soft);
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--tc-primary-dark);
    display: inline-flex;
    gap: .35rem;
    font-weight: 800;
    padding: .35rem .6rem;
}

.practice-help-toggle {
    cursor: pointer;
    font: inherit;
}

.practice-help-toggle .tc-icon {
    height: 1rem;
    width: 1rem;
}

.practice-help-panel {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
    color: var(--text);
    max-width: 620px;
    padding: .9rem 1rem;
    width: min(100%, 620px);
}

.practice-help-panel ul {
    display: grid;
    gap: .45rem;
    margin: 0;
    padding-left: 1.1rem;
}

.flip-card-shell {
    height: min(58vh, 440px);
    min-height: 320px;
    position: relative;
    width: min(100%, 680px);
}

.flip-card {
    background: transparent;
    border: 0;
    cursor: pointer;
    height: 100%;
    padding: 0;
    perspective: 1200px;
    position: relative;
    width: 100%;
}

.flip-cue {
    align-items: center;
    background: rgba(255, 253, 248, .94);
    border: 1px solid var(--line);
    border-radius: 999px;
    bottom: .9rem;
    box-shadow: 0 8px 22px rgba(16, 39, 41, .14);
    color: var(--tc-primary-dark);
    display: inline-flex;
    height: 3rem;
    justify-content: center;
    pointer-events: none;
    position: absolute;
    right: .9rem;
    transition: opacity .2s ease, transform .2s ease;
    width: 3rem;
    z-index: 4;
}

.flip-cue .tc-icon {
    height: 1.45rem;
    width: 1.45rem;
}

.flip-card:hover .flip-cue,
.flip-card:focus-visible .flip-cue {
    transform: rotate(-10deg) scale(1.04);
}

.flip-card.is-flipped .flip-cue {
    opacity: 0;
}

.card-face {
    align-items: center;
    backface-visibility: hidden;
    background: #fffdf8;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
    display: grid;
    gap: .85rem;
    height: 100%;
    justify-items: center;
    left: 0;
    padding: clamp(1rem, 5vw, 2.2rem);
    position: absolute;
    top: 0;
    transform-style: preserve-3d;
    transition: transform .42s ease;
    width: 100%;
}

.card-face small {
    color: var(--muted);
    font-weight: 800;
}

.card-face strong {
    font-size: clamp(2rem, 7vw, 4.4rem);
    line-height: 1.12;
    max-width: 100%;
    overflow-wrap: anywhere;
    text-align: center;
}

.card-face em {
    color: var(--accent);
    font-style: normal;
    font-weight: 800;
    overflow-wrap: anywhere;
    text-align: center;
}

.card-face span {
    color: var(--muted);
    text-align: center;
}

.card-face .card-explanation {
    background: rgba(255, 253, 248, .72);
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--text);
    font-size: .95rem;
    line-height: 1.45;
    max-width: min(92%, 560px);
    padding: .7rem .85rem;
}

.card-face .card-explanation[hidden] {
    display: none;
}

.card-back {
    background: var(--tc-surface-soft);
    transform: rotateY(180deg);
}

.flip-card.is-flipped .card-front {
    transform: rotateY(180deg);
}

.flip-card.is-flipped .card-back {
    transform: rotateY(360deg);
}

.lesson-favorite-form {
    position: absolute;
    right: .9rem;
    top: .9rem;
    z-index: 5;
}

.lesson-favorite-form[hidden] {
    display: none;
}

.lesson-favorite-button {
    align-items: center;
    background: rgba(255, 253, 248, .94);
    border: 1px solid var(--line);
    border-radius: 999px;
    box-shadow: 0 8px 22px rgba(16, 39, 41, .14);
    color: var(--tc-primary-dark);
    cursor: pointer;
    display: inline-flex;
    font: inherit;
    font-size: 1.55rem;
    font-weight: 900;
    height: 3rem;
    justify-content: center;
    line-height: 1;
    padding: 0;
    transition: background .2s ease, border-color .2s ease, color .2s ease, transform .2s ease;
    width: 3rem;
}

.lesson-favorite-button:hover,
.lesson-favorite-button:focus-visible {
    transform: scale(1.04);
}

.lesson-favorite-button.is-favorite {
    background: var(--tc-accent-soft);
    border-color: rgba(216, 91, 24, .38);
    color: var(--tc-accent);
}

.lesson-favorite-button:disabled {
    cursor: wait;
    opacity: .7;
    transform: none;
}

.card-reset-button {
    align-items: center;
    background: rgba(237, 248, 245, .94);
    border: 1px solid var(--line);
    border-radius: 999px;
    bottom: .9rem;
    box-shadow: 0 8px 22px rgba(16, 39, 41, .16);
    color: var(--tc-primary-dark);
    cursor: pointer;
    display: none;
    height: 3rem;
    justify-content: center;
    left: .9rem;
    position: absolute;
    width: 3rem;
    z-index: 4;
}

.flip-card-shell.is-flipped .card-reset-button {
    display: inline-flex;
}

.card-reset-button .tc-icon {
    height: 1.45rem;
    width: 1.45rem;
}

.status-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    justify-content: center;
}

.practice-controls,
.practice-status-buttons {
    display: grid;
    gap: .9rem;
    margin: 0 auto;
    max-width: 620px;
    width: min(100%, 620px);
}

.practice-controls {
    grid-template-columns: 1fr;
}

.play-button {
    justify-self: center;
    min-height: 3rem;
    min-width: min(100%, 220px);
}

.practice-status-buttons {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.lesson-nav {
    display: grid;
    gap: .75rem;
    margin: 0 auto;
    max-width: 620px;
    width: min(100%, 620px);
}

.lesson-nav-primary {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.lesson-nav-secondary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.lesson-nav-button {
    justify-content: center;
    min-height: 3rem;
    text-align: center;
    width: 100%;
}

.lesson-nav-button:disabled {
    cursor: default;
    filter: grayscale(.2);
    opacity: .45;
}

.status-action-button {
    justify-content: center;
    min-height: 3rem;
    width: 100%;
}

.practice-complete {
    background: var(--tc-accent-soft);
    border: 1px solid #f0c4a6;
    border-radius: 8px;
    color: var(--text);
    font-weight: 800;
    margin: 0 auto;
    max-width: 520px;
    padding: 1rem;
    text-align: center;
}

.lesson-complete-panel {
    display: grid;
    gap: .85rem;
}

.lesson-complete-panel[hidden] {
    display: none;
}

.lesson-complete-panel h2,
.lesson-complete-panel p {
    margin: 0;
}

.lesson-complete-actions {
    display: grid;
    gap: .75rem;
    margin: .25rem auto 0;
    max-width: 360px;
    width: 100%;
}

.lesson-complete-actions .button {
    justify-content: center;
}

.practice-stage.is-complete .practice-meta,
.practice-stage.is-complete .practice-help-panel,
.practice-stage.is-complete .flip-card-shell,
.practice-stage.is-complete .practice-actions,
.practice-stage.is-complete .practice-controls,
.practice-stage.is-complete .lesson-nav,
.practice-stage.is-complete .status-buttons {
    display: none;
}

.status-chip:hover,
.status-chip:focus-visible,
.button:hover,
.button:focus-visible,
.mini-button:hover,
.mini-button:focus-visible {
    filter: brightness(.96);
}

.info-list {
    display: grid;
    gap: .5rem 1rem;
    grid-template-columns: max-content minmax(0, 1fr);
}

.info-list dt {
    color: var(--muted);
    font-weight: 800;
}

.info-list dd {
    margin: 0;
}

.import-summary-grid {
    display: grid;
    gap: .9rem;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    margin: 1rem 0;
}

.import-summary-grid h3 {
    font-size: .95rem;
    margin: 0 0 .45rem;
}

.compact-list {
    display: grid;
    gap: .35rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.compact-list li {
    align-items: center;
    background: var(--tc-surface-soft);
    border: 1px solid var(--line);
    border-radius: 8px;
    display: flex;
    gap: .6rem;
    justify-content: space-between;
    padding: .45rem .55rem;
}

.compact-list span {
    min-width: 0;
    overflow-wrap: anywhere;
}

.helper-panel {
    background: var(--tc-surface-soft);
}

.theme-list,
.lesson-list {
    display: grid;
    gap: .75rem;
}

.theme-card {
    background: var(--tc-surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 10px 24px rgba(16, 39, 41, .08);
    display: grid;
    gap: .8rem;
    padding: .9rem;
}

.theme-card header,
.lesson-row {
    align-items: center;
    display: grid;
    gap: .4rem .8rem;
    grid-template-columns: minmax(0, 1fr) auto;
}

.theme-card header strong,
.lesson-row strong {
    display: block;
}

.theme-card header span,
.lesson-row span,
.theme-card small,
.lesson-row small {
    color: var(--muted);
}

.theme-actions {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
}

.theme-actions input {
    max-width: 14rem;
}

.lesson-row {
    background: var(--tc-surface-soft);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: .65rem;
}

.lesson-type-counts {
    display: flex;
    flex-wrap: wrap;
    gap: .35rem;
    margin-top: .45rem;
}

.type-count {
    background: var(--tc-surface);
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--tc-primary-dark);
    font-size: .78rem;
    font-weight: 700;
    line-height: 1.2;
    padding: .22rem .48rem;
    text-decoration: none;
}

.type-count.is-low {
    background: #fff7ed;
    border-color: #fdba74;
    color: #9a3412;
}

.type-count.is-ok {
    background: #ecfdf5;
    border-color: #86efac;
    color: #166534;
}

.bulk-actions {
    align-items: center;
    display: inline-flex;
    flex-wrap: wrap;
    gap: .6rem;
    margin: .4rem .6rem .8rem 0;
}

.admin-workflow,
.list-toolbar,
.pagination {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: .75rem 1rem;
    justify-content: space-between;
}

.admin-workflow h2,
.quick-filter-panel h2 {
    margin: 0 0 .25rem;
}

.quick-filter-row {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
}

.select-all-card {
    background: var(--tc-surface-soft);
    border: 1px solid var(--line);
    border-radius: 8px;
    min-height: 2.55rem;
    padding: .45rem .7rem;
}

.pagination {
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-weight: 800;
    margin-top: 1rem;
    padding-top: .9rem;
}

.import-confirm-box {
    align-items: end;
    background: var(--tc-surface-soft);
    border: 1px solid var(--line);
    border-radius: 8px;
    display: grid;
    gap: .8rem;
    margin-top: 1rem;
    padding: .9rem;
}

.import-confirm-box form {
    margin: 0;
}

.danger-zone summary {
    cursor: pointer;
    color: #8f2f18;
}

.danger-zone {
    border-color: #f1b18d;
    background: var(--tc-accent-soft);
}

.danger-zone h2 {
    color: #8f2f18;
}

.device-list {
    display: grid;
    gap: .45rem;
    margin-top: .45rem;
}

.device-chip {
    align-items: center;
    background: var(--tc-surface-soft);
    border: 1px solid var(--line);
    border-radius: 8px;
    display: flex;
    flex-wrap: wrap;
    gap: .45rem .7rem;
    justify-content: space-between;
    padding: .55rem .65rem;
}

.device-chip strong {
    align-items: center;
    display: inline-flex;
    gap: .35rem;
}

.select-card {
    align-items: center;
    color: var(--muted);
    display: inline-flex;
    font-size: .88rem;
    font-weight: 800;
    gap: .35rem;
    margin-bottom: .35rem;
}

.type-choice {
    border: 1px solid var(--line);
    border-radius: 8px;
    margin: 0;
    padding: .9rem;
}

.type-choice legend {
    color: var(--tc-primary-dark);
    font-weight: 900;
    padding: 0 .35rem;
}

.type-grid {
    display: grid;
    gap: .5rem;
    grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
}

.type-option {
    align-items: center;
    background: var(--tc-surface-soft);
    border: 1px solid var(--line);
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    font-weight: 800;
    gap: .45rem;
    min-width: 0;
    padding: .65rem .75rem;
}

.type-option input[type="checkbox"] {
    accent-color: var(--tc-primary);
    flex: 0 0 auto;
    height: 1.05rem;
    min-height: 0;
    padding: 0;
    width: 1.05rem;
}

.type-option span {
    color: var(--tc-text);
    line-height: 1.2;
    min-width: 0;
    overflow-wrap: anywhere;
}

.type-option:has(input[type="checkbox"]:checked) {
    background: var(--tc-primary);
    border-color: var(--tc-primary-dark);
}

.type-option:has(input[type="checkbox"]:checked) span {
    color: #ffffff;
}

.choice-screen-open {
    overflow: hidden;
}

.choice-launch-row {
    display: grid;
}

.choice-launcher {
    align-items: center;
    background: var(--tc-surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--tc-text);
    cursor: pointer;
    display: flex;
    gap: .75rem;
    justify-content: space-between;
    padding: .95rem 1rem;
    text-align: left;
    width: 100%;
}

.choice-launcher::after {
    color: var(--tc-primary);
    content: ">";
    flex: 0 0 auto;
    font-size: 1.35rem;
    font-weight: 900;
    line-height: 1;
}

.choice-launcher span {
    color: var(--tc-primary-dark);
    font-weight: 900;
}

.choice-launcher strong {
    background: var(--tc-primary-soft);
    border-radius: 999px;
    color: var(--tc-primary-dark);
    font-size: .92rem;
    margin-left: auto;
    padding: .32rem .65rem;
}

.choice-screen[hidden] {
    display: none;
}

.choice-screen {
    background: rgba(16, 39, 41, .24);
    inset: 0;
    overflow: auto;
    padding: 1rem;
    position: fixed;
    z-index: 200;
}

.choice-screen-panel {
    background: var(--tc-bg);
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: var(--tc-shadow);
    display: grid;
    gap: .85rem;
    margin: min(8vh, 4rem) auto;
    max-width: 42rem;
    padding: 1rem;
}

.choice-screen-header {
    align-items: center;
    display: flex;
    gap: .75rem;
    justify-content: space-between;
}

.choice-screen-header h2 {
    color: var(--tc-text);
    font-size: 1.45rem;
    margin: 0;
}

.choice-screen-close {
    flex: 0 0 auto;
}

.choice-dropdown {
    background: var(--tc-surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
}

.choice-dropdown + .choice-dropdown {
    margin-top: .15rem;
}

.choice-dropdown-summary {
    align-items: center;
    cursor: pointer;
    display: flex;
    gap: .75rem;
    justify-content: space-between;
    list-style: none;
    padding: .9rem 1rem;
}

.choice-dropdown-summary::-webkit-details-marker {
    display: none;
}

.choice-dropdown-summary::after {
    color: var(--tc-primary);
    content: "v";
    flex: 0 0 auto;
    font-size: 1.35rem;
    font-weight: 900;
    line-height: 1;
    transition: transform .16s ease;
}

.choice-dropdown[open] .choice-dropdown-summary::after {
    transform: rotate(180deg);
}

.choice-dropdown-summary span {
    color: var(--tc-primary-dark);
    font-weight: 900;
}

.choice-dropdown-summary strong {
    background: var(--tc-primary-soft);
    border-radius: 999px;
    color: var(--tc-primary-dark);
    font-size: .92rem;
    margin-left: auto;
    padding: .32rem .65rem;
    text-align: right;
}

.choice-dropdown-body {
    border-top: 1px solid var(--line);
    padding: .8rem;
}

.multi-choice-grid {
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
}

.choice-search {
    margin: .35rem 0 .65rem;
    width: 100%;
}

.lesson-choice-list {
    background: rgba(237, 248, 245, .35);
    border: 1px solid var(--line);
    border-radius: 8px;
    display: grid;
    gap: .5rem;
    max-height: 18rem;
    overflow: auto;
    padding: .55rem;
}

.choice-option.is-search-hidden,
.choice-option.is-theme-hidden {
    display: none;
}

.option-grid {
    display: grid;
    gap: .55rem;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.compact-options {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.check-card {
    align-items: center;
    background: var(--tc-surface-soft);
    border: 1px solid var(--line);
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    font-weight: 850;
    gap: .5rem;
    min-width: 0;
    padding: .68rem .75rem;
}

.check-card input[type="checkbox"] {
    accent-color: var(--tc-primary);
    flex: 0 0 auto;
    height: 1.05rem;
    min-height: 0;
    padding: 0;
    width: 1.05rem;
}

.check-card span {
    min-width: 0;
    overflow-wrap: anywhere;
}

.check-card:has(input[type="checkbox"]:checked) {
    background: var(--tc-primary);
    border-color: var(--tc-primary-dark);
    color: #ffffff;
}

.level-stats-grid {
    display: grid;
    gap: .65rem;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.level-stat-card {
    background: var(--tc-surface-soft);
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--tc-text);
    display: grid;
    gap: .25rem;
    padding: .85rem;
    text-decoration: none;
}

.level-stat-card strong {
    color: var(--tc-primary-dark);
}

.level-stat-card small {
    color: var(--muted);
}

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

.import-table {
    min-width: 980px;
}

.import-table td:last-child {
    color: var(--muted);
    min-width: 220px;
}

.instruction-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.instruction-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 1rem;
}

.instruction-card h2 {
    align-items: center;
    display: flex;
    gap: .45rem;
    margin-top: 0;
}

.instruction-card ol,
.instruction-card ul {
    padding-left: 1.2rem;
}

.practice-start {
    margin-inline: auto;
}

.practice-quick-start {
    display: grid;
    gap: .55rem;
    margin-inline: auto;
    text-align: center;
}

.practice-quick-start .button {
    justify-content: center;
}

.search-result-panel h3 {
    color: var(--tc-primary-dark);
    margin-bottom: .55rem;
}

.search-result-grid {
    display: grid;
    gap: .7rem;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    margin-bottom: 1rem;
}

.search-result-card {
    background: var(--tc-surface-soft);
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--tc-text);
    display: grid;
    gap: .25rem;
    min-height: 6rem;
    padding: .85rem;
    text-decoration: none;
}

.search-result-card:hover,
.search-result-card:focus-visible {
    border-color: var(--tc-primary);
    transform: translateY(-1px);
}

.search-result-card strong {
    color: var(--tc-primary-dark);
}

.search-result-card span,
.search-result-card small {
    color: var(--muted);
}

body.area-practice .topbar {
    justify-content: flex-start;
}

body.area-practice .brand {
    display: none;
}

body.area-practice .main-nav {
    justify-content: flex-start;
}

body.area-practice .main-nav a {
    background: var(--surface);
    border: 1px solid var(--line);
}

body.area-practice .page-shell {
    max-width: 860px;
}

@media (max-width: 820px) {
    .topbar {
        align-items: flex-start;
        flex-direction: column;
        gap: .85rem;
    }

    .main-nav {
        display: grid;
        gap: .5rem;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        overflow: visible;
        padding-bottom: 0;
        width: 100%;
    }

    .language-switcher {
        margin-left: 0;
        width: 100%;
    }

    .language-switcher label {
        justify-content: space-between;
        width: 100%;
    }

    .language-switcher select {
        max-width: 100%;
    }

    .main-nav a {
        background: var(--surface-2);
        border: 1px solid var(--line);
        min-height: 2.7rem;
        text-align: center;
        white-space: normal;
    }

    .hero-panel,
    .split-layout {
        grid-template-columns: 1fr;
    }

    .hero-panel {
        min-height: auto;
    }

    .sample-card {
        transform: none;
    }

    .page-heading h1 {
        font-size: 2.2rem;
    }

    .tile-grid {
        grid-template-columns: 1fr;
    }

    .tile {
        min-height: 6.8rem;
        padding: 1rem;
    }

    table {
        min-width: 0;
    }

    thead {
        display: none;
    }

    tr {
        border: 1px solid var(--line);
        border-radius: 8px;
        display: grid;
        margin-bottom: .8rem;
        padding: .4rem;
    }

    td {
        border: 0;
        display: grid;
        gap: .15rem;
        padding: .45rem;
    }

    .flip-card {
        height: 54vh;
        min-height: 300px;
    }

    .practice-actions,
    .practice-controls,
    .lesson-nav,
    .status-buttons {
        width: 100%;
    }

    .practice-controls {
        grid-template-columns: 1fr;
    }

    .lesson-nav {
        gap: .6rem;
    }

    .lesson-nav-button {
        font-size: .9rem;
        min-height: 3.1rem;
        padding: .65rem .4rem;
    }

    .practice-actions .button,
    .status-chip {
        flex: 1 1 150px;
    }

    .choice-screen {
        padding: 0;
    }

    .choice-screen-panel {
        border-radius: 0;
        margin: 0;
        max-width: none;
        min-height: 100dvh;
        padding: 1rem;
    }

    .choice-screen-header {
        background: var(--tc-bg);
        position: sticky;
        top: 0;
        z-index: 2;
    }

    .type-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .card-grid-header {
        display: none;
    }

    .card-grid-row {
        grid-template-columns: 1.7rem 1.4rem minmax(0, 1fr) 2.4rem;
        min-height: 0;
        padding: .5rem;
    }

    .card-grid-row .grid-main {
        grid-column: 3;
    }

    .card-grid-row .grid-cell {
        grid-column: 3 / 4;
        font-size: .82rem;
    }

    .card-grid-row .grid-cell.compact {
        display: inline-block;
        font-size: .78rem;
    }

    .card-grid-row .edit-button {
        grid-column: 4;
        grid-row: 1 / span 3;
        justify-self: end;
    }

    .area-participant .page-shell {
        padding-bottom: 5.6rem;
    }

    body.area-participant .topbar {
        align-items: center;
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        gap: .65rem;
        padding: .85rem .9rem;
    }

    body.area-participant .brand {
        min-width: 0;
    }

    body.area-participant .brand-mark {
        height: 2.75rem;
        width: 2.75rem;
    }

    body.area-participant .brand-copy strong {
        font-size: 1.45rem;
    }

    body.area-participant .main-nav {
        display: none;
    }

    body.area-participant .language-switcher {
        margin-left: 0;
        width: auto;
    }

    body.area-participant .language-switcher label {
        justify-content: center;
        width: auto;
    }

    body.area-participant .language-switcher select {
        width: 3rem;
    }

    .compact-hero h1 {
        font-size: clamp(1.2rem, 5.6vw, 1.6rem);
    }

    body.area-practice .topbar {
        align-items: stretch;
        padding: .65rem .8rem;
    }

    body.area-practice .main-nav {
        display: flex;
    }

    body.area-practice .main-nav a {
        min-height: 2.35rem;
        width: auto;
    }
}

@media (max-width: 360px) {
    .type-grid {
        grid-template-columns: 1fr;
    }
}