:root {
    --font-body: "Manrope", sans-serif;
    --lexi-ink: #172126;
    --lexi-muted: #59666b;
    --lexi-notebook: #f3f6f5;
    --lexi-paper: #ffffff;
    --lexi-teal: #0f766e;
    --lexi-teal-strong: #0b5f59;
    --lexi-teal-soft: #dcefeb;
    --lexi-coral: #b54a60;
    --lexi-coral-soft: #fae8ec;
    --lexi-rule: #d7e0dd;
    --lexi-shadow: 0 12px 32px rgb(23 33 38 / 0.07);
    color-scheme: light;
}

.dark {
    --lexi-ink: #eef5f2;
    --lexi-muted: #aebbb7;
    --lexi-notebook: #101817;
    --lexi-paper: #182220;
    --lexi-teal: #67c9ba;
    --lexi-teal-strong: #8ed9cd;
    --lexi-teal-soft: #193d38;
    --lexi-coral: #ef91a3;
    --lexi-coral-soft: #41242c;
    --lexi-rule: #33423e;
    --lexi-shadow: 0 16px 36px rgb(0 0 0 / 0.18);
    color-scheme: dark;
}

html,
code,
kbd,
pre,
samp {
    font-family: var(--font-body);
}

html {
    background: var(--lexi-notebook);
    color: var(--lexi-ink);
}

body {
    margin: 0;
    min-height: 100vh;
    min-height: 100svh;
    background:
        linear-gradient(90deg, transparent 0, transparent calc(50% - 1px), rgb(15 118 110 / 0.025) 50%, transparent calc(50% + 1px)),
        var(--lexi-notebook);
    color: var(--lexi-ink);
    font-family: var(--font-body);
    -webkit-tap-highlight-color: transparent;
}

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

a,
button,
input,
select,
textarea {
    outline-offset: 3px;
}

:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--lexi-teal) 75%, white);
    outline-offset: 3px;
}

.skip-link {
    position: fixed;
    z-index: 100;
    top: 0.75rem;
    left: 50%;
    transform: translate(-50%, -5rem);
    border-radius: 999px;
    background: var(--lexi-ink);
    color: var(--lexi-paper);
    padding: 0.65rem 1rem;
    font-weight: 700;
}

.skip-link:focus { transform: translate(-50%, 0); }

.lexi-wordmark {
    display: inline-flex;
    align-items: baseline;
    gap: 0.12em;
    color: var(--lexi-ink);
    font-family: var(--font-body);
    font-size: 1.35rem;
    font-weight: 400;
    letter-spacing: -0.035em;
    text-decoration: none;
}

.lexi-wordmark span { color: var(--lexi-teal); }

.app-topbar {
    position: fixed;
    inset: 0 0 auto;
    z-index: 40;
    display: flex;
    min-height: 3.75rem;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    border-bottom: 1px solid var(--lexi-rule);
    background: color-mix(in srgb, var(--lexi-notebook) 91%, transparent);
    padding: max(0.65rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right)) 0.65rem max(1rem, env(safe-area-inset-left));
    backdrop-filter: blur(14px);
}

.app-topbar-actions { display: flex; align-items: center; gap: 0.55rem; }

.app-sidebar { display: none; }

.app-main {
    width: 100%;
    margin-inline: auto;
    padding-top: max(5rem, calc(env(safe-area-inset-top) + 5rem));
    padding-bottom: max(2rem, calc(env(safe-area-inset-bottom) + 2rem));
}

.app-nav-link {
    display: flex;
    min-height: 3.2rem;
    align-items: center;
    justify-content: center;
    border-radius: 0.7rem;
    color: var(--lexi-muted);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.015em;
    text-decoration: none;
}

.app-nav-link[aria-current="page"] {
    background: var(--lexi-teal-soft);
    color: var(--lexi-teal-strong);
}

.drawer-backdrop {
    position: fixed;
    inset: 0;
    z-index: 60;
    background: rgb(9 17 16 / 0.48);
}

.drawer-panel {
    position: fixed;
    z-index: 70;
    inset: 0 0 0 auto;
    display: flex;
    width: min(20rem, 88vw);
    flex-direction: column;
    background: var(--lexi-paper);
    box-shadow: -20px 0 48px rgb(0 0 0 / 0.18);
    padding: max(1rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right)) max(1rem, env(safe-area-inset-bottom)) 1rem;
}

.drawer-header { display: flex; align-items: center; justify-content: space-between; padding: 0.25rem 0.35rem 1.25rem; }
.drawer-nav { display: grid; gap: 0.35rem; }
.drawer-nav .app-nav-link { justify-content: flex-start; padding-inline: 0.85rem; font-size: 0.95rem; }

.icon-button {
    display: inline-flex;
    min-width: 2.75rem;
    min-height: 2.75rem;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--lexi-rule);
    border-radius: 0.75rem;
    background: var(--lexi-paper);
    color: var(--lexi-ink);
}

.page-kicker,
.utility-text {
    color: var(--lexi-teal-strong);
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.page-title {
    margin: 0;
    font-family: var(--font-body);
    font-size: clamp(1.8rem, 6vw, 2.5rem);
    font-weight: 400;
    letter-spacing: -0.03em;
    line-height: 1.05;
}

.page-intro { margin-top: 0.65rem; color: var(--lexi-muted); line-height: 1.6; }

.lexeme-text {
    font-family: var(--font-body);
    font-weight: 400;
    letter-spacing: -0.015em;
}

.surface {
    border: 1px solid var(--lexi-rule);
    border-radius: 1rem;
    background: var(--lexi-paper);
}

.surface-raised { box-shadow: var(--lexi-shadow); }

.translation-spine {
    position: relative;
    padding-left: 1rem;
}

.translation-spine::before {
    position: absolute;
    inset: 0.15rem auto 0.15rem 0;
    width: 3px;
    border-radius: 999px;
    background: var(--lexi-teal);
    content: "";
}

.field-label {
    display: block;
    margin-bottom: 0.45rem;
    color: var(--lexi-muted);
    font-size: 0.82rem;
    font-weight: 700;
}

.field-control {
    min-height: 2.9rem;
    width: 100%;
    border: 1px solid var(--lexi-rule);
    border-radius: 0.8rem;
    background: var(--lexi-paper);
    color: var(--lexi-ink);
    padding: 0.68rem 0.85rem;
}

.field-control:focus { border-color: var(--lexi-teal); }

.button-primary,
.button-secondary,
.button-danger,
.text-action {
    display: inline-flex;
    min-height: 2.75rem;
    align-items: center;
    justify-content: center;
    border-radius: 0.8rem;
    padding: 0.65rem 1rem;
    font-size: 0.9rem;
    font-weight: 750;
    text-decoration: none;
    transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.button-primary { border: 1px solid var(--lexi-teal); background: var(--lexi-teal); color: #fff; }
.button-primary:hover { border-color: var(--lexi-teal-strong); background: var(--lexi-teal-strong); }
.button-secondary { border: 1px solid var(--lexi-rule); background: var(--lexi-paper); color: var(--lexi-ink); }
.button-secondary:hover { border-color: var(--lexi-teal); color: var(--lexi-teal-strong); }
.button-danger { border: 1px solid color-mix(in srgb, var(--lexi-coral) 35%, var(--lexi-rule)); background: transparent; color: var(--lexi-coral); }
.text-action { color: var(--lexi-teal-strong); padding-inline: 0.25rem; }
.settings-toggle { justify-content: space-between; gap: 1rem; }

.status-error,
.status-success {
    border: 1px solid;
    border-radius: 0.8rem;
    padding: 0.8rem 1rem;
    font-size: 0.88rem;
}

.status-error { border-color: color-mix(in srgb, var(--lexi-coral) 35%, var(--lexi-rule)); background: var(--lexi-coral-soft); color: var(--lexi-coral); }
.status-success { border-color: color-mix(in srgb, var(--lexi-teal) 35%, var(--lexi-rule)); background: var(--lexi-teal-soft); color: var(--lexi-teal-strong); }

.empty-state { padding: 3rem 1.5rem; text-align: center; }
.empty-state p { color: var(--lexi-muted); }

.result-item {
    width: 100%;
    min-height: 4.5rem;
    border: 1px solid var(--lexi-rule);
    border-radius: 0.95rem;
    background: var(--lexi-paper);
    padding: 1rem;
    color: var(--lexi-ink);
    text-align: left;
    transition: border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.result-item:hover {
    border-color: var(--lexi-teal);
    box-shadow: 0 8px 24px rgb(23 33 38 / 0.06);
    transform: translateY(-1px);
}

.lexi-badge,
.lexi-chip {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    font-size: 0.76rem;
    line-height: 1.2;
}

.lexi-badge { border: 1px solid var(--lexi-rule); color: var(--lexi-muted); padding: 0.22rem 0.55rem; font-family: var(--font-body); }
.lexi-chip { background: var(--lexi-teal-soft); color: var(--lexi-teal-strong); padding: 0.42rem 0.72rem; font-weight: 750; }
.lexi-chip-link {
    border: 1px solid transparent;
    text-decoration: none;
    transition: border-color 160ms ease, background-color 160ms ease, transform 160ms ease;
}
.lexi-chip-link:hover { border-color: var(--lexi-teal); transform: translateY(-1px); }
.lexi-chip-link:focus-visible { border-color: var(--lexi-teal); outline: 2px solid var(--lexi-teal); outline-offset: 2px; }

.meaning-disclosure {
    border-top: 1px solid var(--lexi-rule);
    padding-top: 0.85rem;
}

.meaning-summary {
    display: flex;
    min-height: 2.75rem;
    width: 100%;
    align-items: center;
    justify-content: space-between;
    color: var(--lexi-ink);
    text-align: left;
}

.meaning-summary:focus-visible { outline: 2px solid var(--lexi-teal); outline-offset: 3px; }
.meaning-chevron { color: var(--lexi-teal-strong); transition: transform 160ms ease; }
.meaning-chevron.is-open { transform: rotate(90deg); }

@media (prefers-reduced-motion: reduce) {
    .lexi-chip-link,
    .meaning-chevron { transition: none; }
}

.sense-list > li + li { border-top: 1px solid var(--lexi-rule); }

.review-card {
    position: relative;
    display: flex;
    min-height: 52vh;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    overflow: hidden;
    border: 1px solid var(--lexi-rule);
    border-radius: 1.25rem;
    background: var(--lexi-paper);
    box-shadow: var(--lexi-shadow);
    padding: 2rem;
    text-align: center;
    touch-action: pan-y;
    user-select: none;
}
.review-card.is-moving { transition: transform 220ms ease, opacity 220ms ease, background-color 160ms ease; }
.review-card.is-miss { background: var(--lexi-coral-soft); }
.review-card.is-remembered { background: var(--lexi-teal-soft); }

.review-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; margin-top: 1rem; }
.review-action { min-height: 3.5rem; border: 1px solid var(--lexi-rule); border-radius: 0.9rem; background: var(--lexi-paper); font-weight: 800; }
.review-action--miss { color: var(--lexi-coral); }
.review-action--know { color: var(--lexi-teal-strong); }
.review-action:hover { border-color: currentColor; }

.settings-card { padding: 1rem; }
.settings-card + .settings-card { margin-top: 0.85rem; }
.settings-title { margin-bottom: 0.85rem; font-weight: 800; }

.quiz-options summary {
    display: flex;
    min-height: 4.25rem;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.8rem 1rem;
    cursor: pointer;
    list-style: none;
}
.quiz-options summary::-webkit-details-marker { display: none; }
.quiz-options summary::after { color: var(--lexi-teal-strong); content: "+"; font-size: 1.3rem; font-weight: 500; }
.quiz-options[open] summary { border-bottom: 1px solid var(--lexi-rule); }
.quiz-options[open] summary::after { content: "−"; }
.quiz-options summary strong,
.quiz-options summary small { display: block; }
.quiz-options summary small { margin-top: 0.15rem; color: var(--lexi-muted); font-size: 0.75rem; }
.quiz-options .settings-card + .settings-card { margin-top: 0; border-top: 1px solid var(--lexi-rule); }

.choice-row {
    display: flex;
    min-height: 3rem;
    align-items: center;
    gap: 0.75rem;
    border: 1px solid var(--lexi-rule);
    border-radius: 0.8rem;
    padding: 0.65rem 0.8rem;
    cursor: pointer;
}

.choice-row:has(input:checked) { border-color: var(--lexi-teal); background: var(--lexi-teal-soft); }

.quiz-option {
    display: flex;
    width: 100%;
    min-height: 3.5rem;
    align-items: center;
    gap: 0.75rem;
    border: 2px solid var(--lexi-rule);
    border-radius: 0.9rem;
    background: var(--lexi-paper);
    padding: 0.75rem;
    text-align: left;
}

.quiz-option:hover:not(:disabled) { border-color: var(--lexi-teal); }
.quiz-option.is-correct { border-color: var(--lexi-teal); background: var(--lexi-teal-soft); color: var(--lexi-teal-strong); }
.quiz-option.is-wrong { border-color: var(--lexi-coral); background: var(--lexi-coral-soft); color: var(--lexi-coral); }
.quiz-option.is-muted { opacity: 0.55; }
.quiz-letter { display: inline-flex; width: 2rem; height: 2rem; flex: 0 0 auto; align-items: center; justify-content: center; border-radius: 999px; background: var(--lexi-teal-soft); color: var(--lexi-teal-strong); font-family: var(--font-body); font-weight: 800; }
.quiz-progress { height: 0.35rem; overflow: hidden; border-radius: 999px; background: var(--lexi-rule); }
.quiz-progress > div { height: 100%; background: var(--lexi-teal); transition: width 300ms ease; }
.cefr-choice { display: block; border: 1px solid var(--lexi-rule); border-radius: 0.7rem; padding: 0.55rem; text-align: center; cursor: pointer; }
.cefr-choice.is-selected { border-color: var(--lexi-teal); background: var(--lexi-teal); color: white; }

.removed-entry {
    border-style: dashed;
    background: color-mix(in srgb, var(--lexi-paper) 72%, var(--lexi-notebook));
    color: var(--lexi-muted);
}

.session-summary { padding: clamp(1.5rem, 6vw, 2.5rem); }
.session-summary-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.65rem; }
.session-summary-grid div { border-top: 2px solid var(--lexi-rule); padding-top: 0.8rem; }
.session-summary-grid strong { display: block; font-size: clamp(1.65rem, 6vw, 2.4rem); font-weight: 500; }
.session-summary-grid span { display: block; margin-top: 0.2rem; color: var(--lexi-muted); font-size: 0.72rem; line-height: 1.25; }

.dashboard-onboarding {
    position: relative;
    display: grid;
    gap: 1.5rem;
    overflow: hidden;
    padding: clamp(1.25rem, 5vw, 2rem);
}
.dashboard-onboarding::before {
    position: absolute;
    inset: 0 auto 0 0;
    width: 4px;
    background: var(--lexi-teal);
    content: "";
}
.dashboard-dismiss {
    position: absolute;
    top: 0.7rem;
    right: 0.7rem;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 999px;
    color: var(--lexi-muted);
    font-size: 1.35rem;
}
.dashboard-onboarding-copy { padding-right: 1.5rem; }
.onboarding-path { display: grid; gap: 0.75rem; margin: 0; padding: 0; list-style: none; }
.onboarding-path li { display: flex; align-items: center; gap: 0.75rem; color: var(--lexi-muted); }
.onboarding-path li > span { display: inline-flex; width: 2rem; height: 2rem; flex: 0 0 auto; align-items: center; justify-content: center; border: 1px solid var(--lexi-rule); border-radius: 999px; font-size: 0.75rem; font-weight: 800; }
.onboarding-path strong,
.onboarding-path small { display: block; }
.onboarding-path small { margin-top: 0.1rem; font-size: 0.72rem; }
.onboarding-path .is-current { color: var(--lexi-ink); }
.onboarding-path .is-current > span { border-color: var(--lexi-teal); background: var(--lexi-teal); color: white; }
.onboarding-path .is-complete > span { border-color: var(--lexi-teal); color: var(--lexi-teal-strong); }

.dashboard-lead {
    display: grid;
    gap: 1.5rem;
    align-items: end;
    padding: clamp(1.35rem, 5vw, 2.25rem);
}
.dashboard-thesis { max-width: 12ch; margin-top: 0.7rem; font-size: clamp(2rem, 8vw, 3.8rem); font-weight: 350; letter-spacing: -0.055em; line-height: 0.98; }
.dashboard-today { display: grid; min-width: 7.5rem; align-content: end; border-top: 1px solid var(--lexi-rule); padding-top: 1rem; }
.dashboard-today span,
.dashboard-today small { color: var(--lexi-muted); font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; }
.dashboard-today strong { margin-block: 0.15rem; font-size: 3rem; font-weight: 300; line-height: 1; }

.dashboard-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.65rem; }
.dashboard-metrics article { padding: 1rem; }
.dashboard-metrics span { display: block; color: var(--lexi-muted); font-size: 0.72rem; font-weight: 700; }
.dashboard-metrics strong { display: block; margin-top: 0.35rem; font-size: 1.75rem; font-weight: 450; }
.dashboard-statistics-filter { padding: 0.9rem 1rem; scroll-margin-top: 5rem; }
.dashboard-statistics-filter fieldset { min-width: 0; }
.dashboard-statistics-filter legend { color: var(--lexi-muted); font-size: 0.72rem; font-weight: 800; letter-spacing: 0.04em; text-transform: uppercase; }
.dashboard-statistics-filter fieldset > p { margin-top: 0.18rem; color: var(--lexi-muted); font-size: 0.68rem; }
.dashboard-language-options { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 0.55rem; }
.dashboard-language-options label { cursor: pointer; }
.dashboard-language-options input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.dashboard-language-options span { display: block; border: 1px solid var(--lexi-rule); border-radius: 999px; padding: 0.38rem 0.7rem; color: var(--lexi-muted); font-size: 0.75rem; font-weight: 700; }
.dashboard-language-options input:checked + span { border-color: var(--lexi-teal); background: var(--lexi-teal-soft); color: var(--lexi-teal-strong); }
.dashboard-language-options input:focus-visible + span { outline: 3px solid color-mix(in srgb, var(--lexi-teal) 75%, white); outline-offset: 3px; }
.dashboard-difficulty-breakdown { margin-top: 0.75rem; border-top: 1px solid var(--lexi-rule); padding-top: 0.55rem; }
.dashboard-difficulty-breakdown div { display: flex; justify-content: space-between; gap: 0.4rem; font-size: 0.67rem; line-height: 1.6; }
.dashboard-difficulty-breakdown dt { min-width: 0; overflow-wrap: anywhere; color: var(--lexi-muted); }
.dashboard-difficulty-breakdown dd { flex: 0 0 auto; font-weight: 800; }

@media (max-width: 520px) {
    .dashboard-metrics { grid-template-columns: 1fr; }
    .dashboard-difficulty-breakdown { display: grid; grid-template-columns: repeat(auto-fit, minmax(3.75rem, 1fr)); gap: 0.5rem; }
    .dashboard-difficulty-breakdown div { display: block; text-align: center; }
}
.dashboard-grid { display: grid; gap: 1rem; }
.dashboard-panel { padding: clamp(1.15rem, 4vw, 1.5rem); }

.practice-rhythm { display: grid; grid-template-columns: repeat(7, 1fr); gap: 0.55rem; }
.practice-day { display: grid; justify-items: center; gap: 0.45rem; color: var(--lexi-muted); }
.practice-day > span:first-child { width: 100%; max-width: 2.4rem; aspect-ratio: 1; border: 1px solid var(--lexi-rule); border-radius: 0.45rem 0.45rem 0.45rem 0.12rem; background: var(--lexi-notebook); }
.practice-day.is-practised > span:first-child { border-color: var(--lexi-teal); background: var(--lexi-teal); box-shadow: inset 0 -5px 0 rgb(255 255 255 / 0.18); }
.practice-day.is-today small { color: var(--lexi-ink); font-weight: 800; }

.strength-bar { display: flex; height: 0.7rem; overflow: hidden; border-radius: 999px; background: var(--lexi-rule); }
.strength-bar span { min-width: 0; }
.strength-bar .is-new { background: #9eaaa6; }
.strength-bar .is-learning { background: var(--lexi-coral); }
.strength-bar .is-strong { background: var(--lexi-teal); }
.strength-legend { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.7rem; }
.strength-legend div { border-left: 2px solid var(--lexi-rule); padding-left: 0.65rem; }
.strength-legend dt { color: var(--lexi-muted); font-size: 0.72rem; }
.strength-legend dd { margin: 0.2rem 0 0; font-size: 1.3rem; font-weight: 650; }

.pair-progress summary { display: flex; min-height: 4.5rem; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem 1.15rem; cursor: pointer; list-style: none; }
.pair-progress summary::-webkit-details-marker { display: none; }
.pair-progress summary strong,
.pair-progress summary small { display: block; }
.pair-progress summary small { margin-top: 0.25rem; color: var(--lexi-muted); font-size: 0.75rem; }
.pair-progress[open] summary { border-bottom: 1px solid var(--lexi-rule); }
.pair-progress-detail { padding: 1.15rem; }
.cefr-row { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0.4rem; }
.cefr-row div { border-radius: 0.55rem; background: var(--lexi-notebook); padding: 0.55rem 0.2rem; text-align: center; }
.cefr-row span,
.cefr-row strong { display: block; }
.cefr-row span { color: var(--lexi-muted); font-size: 0.65rem; font-weight: 800; }
.cefr-row strong { margin-top: 0.15rem; font-size: 1rem; }

.auth-shell { display: grid; gap: 1.5rem; }
.auth-thesis { padding: 0.5rem 0; }
.auth-panel { padding: 1.15rem; }
.auth-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 0.35rem; margin-bottom: 1.25rem; border-radius: 0.85rem; background: var(--lexi-notebook); padding: 0.3rem; }
.auth-tab { min-height: 2.75rem; border-radius: 0.65rem; color: var(--lexi-muted); font-size: 0.9rem; font-weight: 750; }
.auth-tab[aria-selected="true"] { background: var(--lexi-paper); color: var(--lexi-teal-strong); box-shadow: 0 2px 10px rgb(23 33 38 / 0.08); }

@media (min-width: 900px) {
    .has-sidebar .app-topbar { display: none; }

    .app-sidebar {
        position: fixed;
        inset: 0 auto 0 0;
        z-index: 40;
        display: flex;
        width: 15rem;
        flex-direction: column;
        border-right: 1px solid var(--lexi-rule);
        background: var(--lexi-paper);
        padding: 1.5rem 1rem;
    }

    .app-sidebar-nav { display: grid; gap: 0.35rem; margin-top: 2rem; }
    .app-sidebar .app-nav-link { justify-content: flex-start; padding-inline: 0.9rem; font-size: 0.9rem; }
    .app-sidebar-footer { margin-top: auto; }

    .has-sidebar .app-main {
        padding-top: 3.5rem;
        padding-bottom: 4rem;
    }

    .has-sidebar .app-content { margin-left: 15rem; }
    .auth-shell { grid-template-columns: minmax(0, 0.9fr) minmax(22rem, 1.1fr); align-items: center; min-height: calc(100vh - 10rem); }
    .auth-panel { padding: 1.5rem; }
    .dashboard-onboarding { grid-template-columns: minmax(0, 1.35fr) minmax(15rem, 0.65fr); align-items: center; }
    .dashboard-lead { grid-template-columns: minmax(0, 1fr) auto; }
    .dashboard-today { min-height: 10rem; border-top: 0; border-left: 1px solid var(--lexi-rule); padding-top: 0; padding-left: 1.5rem; }
    .dashboard-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Keep the learning action in reach without moving it when feedback appears. */
.dashboard-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.difficulty-choices { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.5rem; }
.saved-word-group { overflow: hidden; }
.saved-language-entry { border-top: 1px solid var(--lexi-rule); overflow-wrap: anywhere; }
.saved-word-group h2, .quiz-option, .quiz-session h2 { overflow-wrap: anywhere; }
.quiz-option > span:last-child { min-width: 0; }
.quiz-letter { flex-shrink: 0; }
.quiz-session { padding-bottom: calc(12rem + env(safe-area-inset-bottom, 0px)); }
.quiz-next-bar {
    position: fixed;
    z-index: 20;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: min(100%, 32rem);
    padding: 0.75rem max(1rem, env(safe-area-inset-right, 0px)) calc(0.75rem + env(safe-area-inset-bottom, 0px)) max(1rem, env(safe-area-inset-left, 0px));
    border-top: 1px solid var(--lexi-rule);
    background: var(--lexi-paper);
}
.quiz-feedback { min-height: 1.5rem; max-height: 5rem; overflow: auto; overflow-wrap: anywhere; margin-bottom: 0.75rem; }
.quiz-next-bar button { min-height: 3rem; }
.quiz-next-bar button:disabled { opacity: 0.5; cursor: default; }
@media (min-width: 900px) {
    .has-sidebar .quiz-next-bar { left: calc(50% + 7.5rem); }
}