:root {
  --ink: #191a17;
  --paper: #f4f1e8;
  --paper-deep: #e9e4d7;
  --white: #fffef9;
  --muted: #6e7068;
  --line: #d7d3c7;
  --ko: #e55e4f;
  --ko-soft: #f9ded9;
  --ja: #4f58bc;
  --ja-soft: #e3e5fb;
  --acid: #d9ef63;
  --success: #1f7a57;
  --warning: #9c6422;
  --shadow: 0 24px 70px rgba(28, 28, 22, .1);
  --radius: 22px;
}

* { box-sizing: border-box; }

html { background: var(--paper); color: var(--ink); font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body { margin: 0; min-width: 320px; min-height: 100vh; min-height: 100dvh; overflow-x: clip; }
button, input, select, textarea { font: inherit; }
button, select { cursor: pointer; }
button, select, input[type="file"] + label { touch-action: manipulation; }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, a:focus-visible { outline: 3px solid color-mix(in srgb, var(--ja) 55%, transparent); outline-offset: 2px; }
[hidden] { display: none !important; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 10px; left: 12px; z-index: 200; padding: 11px 15px; border-radius: 8px; background: var(--ink); color: white; font-weight: 800; transform: translateY(-150%); transition: transform .15s ease; }
.skip-link:focus { transform: translateY(0); }
.noscript-message { margin: 0; padding: 14px 20px; border-bottom: 1px solid #d7a39a; background: var(--ko-soft); color: var(--ink); text-align: center; font-weight: 700; }
.app-shell { min-height: 100vh; min-height: 100dvh; }
.site-header { height: 82px; padding: 0 3.2vw; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; background: rgba(244,241,232,.96); position: sticky; top: 0; z-index: 20; backdrop-filter: blur(14px); }
.brand { border: 0; background: transparent; padding: 0; display: inline-flex; align-items: center; gap: 12px; color: inherit; justify-self: start; text-align: left; }
.brand strong, .brand small { display: block; }
.brand strong { font-size: .98rem; letter-spacing: -.01em; }
.brand small { margin-top: 2px; color: var(--muted); font-size: .72rem; }
.brand-mark { width: 31px; height: 31px; display: grid; grid-template-columns: 1fr 1fr; gap: 3px; transform: rotate(-7deg); }
.brand-mark i { display: block; border-radius: 5px 1px; background: var(--ko); }
.brand-mark i:last-child { background: var(--ja); }
.main-nav { display: flex; align-items: center; gap: 4px; padding: 5px; border-radius: 99px; background: var(--paper-deep); }
.nav-button { border: 0; background: transparent; color: var(--muted); border-radius: 99px; padding: 9px 18px; font-size: .86rem; font-weight: 700; }
.nav-button.active { background: var(--ink); color: white; }
.icon-button { justify-self: end; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 50%; background: transparent; color: var(--ink); font-weight: 900; letter-spacing: 2px; }

.view { display: none; }
.view.active { display: block; }
.study-layout { min-height: calc(100vh - 82px); display: grid; grid-template-columns: 280px minmax(0, 1fr); }
.study-rail { padding: 42px 32px; border-right: 1px solid var(--line); background: var(--paper-deep); }
.rail-kicker, .eyebrow, .prompt-label, .result-label { margin: 0; font-size: .7rem; letter-spacing: .16em; font-weight: 800; color: var(--muted); }
.today-number { font-family: Georgia, "Times New Roman", serif; font-size: 4.4rem; line-height: 1; margin-top: 12px; letter-spacing: -.06em; }
.rail-label { margin: 4px 0 0; color: var(--muted); font-size: .85rem; }
.rail-rule { height: 1px; background: var(--line); margin: 30px 0; }
.rail-stats { margin: 0 0 30px; display: grid; gap: 13px; }
.rail-stats div { display: flex; justify-content: space-between; align-items: center; }
.rail-stats dt { color: var(--muted); font-size: .82rem; }
.rail-stats dd { margin: 0; font-weight: 800; }
.field-label { display: block; margin-bottom: 8px; font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; font-weight: 800; color: var(--muted); }
select { width: 100%; border: 1px solid var(--line); border-radius: 10px; padding: 11px 38px 11px 12px; color: var(--ink); background: var(--white); }
.source-card { margin-top: 36px; display: flex; gap: 12px; padding-top: 25px; border-top: 1px solid var(--line); }
.source-icon { flex: 0 0 34px; height: 34px; display: grid; place-items: center; background: var(--ink); color: var(--acid); border-radius: 8px; font-weight: 800; }
.source-card strong { font-size: .82rem; }
.source-card p { color: var(--muted); font-size: .76rem; line-height: 1.5; margin: 5px 0 0; }

.study-stage { padding: clamp(30px, 4vw, 64px) clamp(28px, 6vw, 96px) 70px; max-width: 1320px; width: 100%; margin: 0 auto; }
.study-mode-toggle { display: inline-flex; align-items: center; gap: 4px; padding: 5px; margin-bottom: 35px; border: 1px solid var(--line); border-radius: 12px; background: var(--white); }
.study-mode-toggle button { border: 0; border-radius: 8px; padding: 10px 14px; background: transparent; color: var(--muted); font-size: .78rem; font-weight: 800; }
.study-mode-toggle button span { margin-right: 6px; font-size: .64rem; opacity: .65; }
.study-mode-toggle button em { margin-left: 8px; padding: 3px 6px; border-radius: 99px; background: var(--paper-deep); font-size: .61rem; font-style: normal; }
.study-mode-toggle button.active { background: var(--ink); color: white; }
.study-mode-toggle button.active em { background: var(--acid); color: var(--ink); }
.stage-header { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 28px; }
.stage-header h1, .page-heading h1 { font: 500 clamp(2.25rem, 4.2vw, 4.4rem)/.98 Georgia, "Times New Roman", serif; letter-spacing: -.055em; margin: 10px 0 10px; }
.stage-subtitle, .page-heading > p:last-child { color: var(--muted); margin: 0; max-width: 650px; line-height: 1.55; }
.session-progress { width: 150px; color: var(--muted); font-weight: 700; font-size: .78rem; text-align: right; flex: 0 0 auto; }
.progress-track { height: 5px; margin-top: 8px; border-radius: 9px; background: var(--line); overflow: hidden; }
.progress-track span { display: block; height: 100%; width: 0; background: var(--ink); transition: width .25s ease; }

.recall-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.prompt-block { text-align: center; padding: clamp(34px, 5vw, 62px) 24px 36px; }
.prompt-block h2 { font: 500 clamp(2.7rem, 5.5vw, 5.7rem)/1 Georgia, "Times New Roman", serif; letter-spacing: -.055em; margin: 20px auto 14px; max-width: 900px; }
.text-button { border: 0; background: transparent; color: var(--muted); text-decoration: underline; text-underline-offset: 3px; font-size: .8rem; padding: 5px; }
.source-detail { color: var(--muted); max-width: 660px; margin: 12px auto 0; line-height: 1.45; font-size: .85rem; }
.answer-grid, .result-grid { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.language-answer { padding: 27px 30px 24px; }
.language-answer + .language-answer { border-left: 1px solid var(--line); }
.language-heading { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.language-heading strong, .language-heading small { display: block; }
.language-heading strong { font-size: .83rem; }
.language-heading small { color: var(--muted); margin-top: 1px; font-size: .7rem; }
.language-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--ko); }
.japanese-answer .language-dot { background: var(--ja); }
.answer-status { margin-left: auto; font-size: .75rem; font-weight: 800; }
.answer-status.correct { color: var(--success); }
.answer-status.incorrect { color: var(--warning); }
.language-answer input { width: 100%; border: 0; border-bottom: 2px solid var(--ink); padding: 10px 1px 12px; background: transparent; color: var(--ink); font-size: clamp(1.4rem, 2.4vw, 2rem); border-radius: 0; }
.language-answer input::placeholder { color: #b4b1a8; font-size: .95rem; }
.language-answer input:focus { outline: 0; border-bottom-color: var(--ko); }
.japanese-answer input:focus { border-bottom-color: var(--ja); }
.language-answer.resolved { background: color-mix(in srgb, var(--paper) 70%, transparent); }
.input-instruction { color: var(--muted); margin: 10px 0 0; font-size: .73rem; }
.card-actions { display: flex; justify-content: flex-end; gap: 10px; padding: 20px 30px; border-top: 1px solid var(--line); }
.button { min-height: 45px; padding: 11px 18px; border-radius: 9px; font-weight: 800; border: 1px solid var(--ink); }
.button.primary { background: var(--ink); color: white; }
.button.primary:hover { background: #33352f; }
.button.primary:disabled { opacity: .35; cursor: not-allowed; }
.button.secondary { background: transparent; color: var(--ink); border-color: var(--line); }
.button.secondary:hover { border-color: var(--ink); }

.result-panel { padding: 30px; min-height: 220px; }
.result-panel + .result-panel { border-left: 1px solid var(--line); }
.korean-result { background: var(--ko-soft); }
.japanese-result { background: var(--ja-soft); }
.result-word { font: 500 clamp(2.2rem, 4vw, 4.2rem)/1.1 Georgia, "Times New Roman", serif; letter-spacing: -.04em; margin: 15px 0 5px; }
.result-reading { min-height: 1.3em; color: var(--muted); margin: 0 0 22px; }
.rating-block { margin-top: 25px; }
.rating-block > span { display: block; font-size: .75rem; color: var(--muted); margin-bottom: 9px; }
.rating-buttons { display: flex; flex-wrap: wrap; gap: 7px; }
.rating-buttons button { border: 1px solid color-mix(in srgb, var(--ink) 25%, transparent); background: rgba(255,255,255,.45); border-radius: 99px; padding: 7px 12px; color: var(--ink); font-size: .76rem; font-weight: 750; }
.rating-buttons button.selected { background: var(--ink); border-color: var(--ink); color: white; }
.teaching-note { display: flex; gap: 14px; padding: 22px 30px; border-top: 1px solid var(--line); background: var(--white); }
.teaching-note > span { display: grid; place-items: center; width: 31px; height: 31px; flex: 0 0 31px; border-radius: 50%; background: var(--acid); font-weight: 900; }
.teaching-note strong { font-size: .8rem; }
.teaching-note p { margin: 4px 0 0; color: var(--muted); font-size: .78rem; line-height: 1.45; }
.repair-zone { border-top: 1px solid var(--line); background: #20211e; color: white; }
.repair-zone > header { padding: 25px 30px; border-bottom: 1px solid #3d3f38; }
.repair-zone > header h3 { margin: 8px 0 5px; font: 500 1.75rem/1.1 Georgia, "Times New Roman", serif; }
.repair-zone > header > p:last-child { margin: 0; color: #b5b7ae; font-size: .78rem; line-height: 1.5; }
.repair-grid { display: grid; grid-template-columns: 1fr 1fr; }
.repair-panel { padding: 27px 30px 30px; }
.repair-panel + .repair-panel { border-left: 1px solid #3d3f38; }
.repair-heading { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin-bottom: 12px; }
.repair-heading > span { color: #aeb0a8; font-size: .65rem; font-weight: 900; letter-spacing: .1em; }
.repair-heading strong { font: 500 1.5rem/1 Georgia, "Times New Roman", serif; }
.repair-panel > p { min-height: 2.5em; margin: 0 0 18px; color: #b5b7ae; font-size: .74rem; line-height: 1.45; }
.repair-repeat-form label { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 9px; color: #d9dbd3; font-size: .7rem; font-weight: 800; }
.repair-repeat-form label b { color: var(--acid); }
.repair-repeat-form input, .repair-copy textarea { width: 100%; border: 1px solid #4c4e46; border-radius: 8px; padding: 12px 13px; background: #2b2d28; color: white; font-size: 1rem; }
.repair-repeat-form input:focus, .repair-copy textarea:focus { border-color: var(--acid); outline: 2px solid rgba(213, 245, 62, .15); }
.repair-repeat-form small, .repair-copy > small { display: block; min-height: 1.25em; margin-top: 8px; color: #b5b7ae; font-size: .7rem; }
.repair-repeat-form small.good, .repair-copy > small.good { color: #7ed5aa; }
.repair-repeat-form small.bad, .repair-copy > small.bad { color: #f1a59c; }
.repair-repeat-form.is-complete input { border-color: #4d735e; color: #8fe0b8; background: #273a30; }
.repair-copy { margin-top: 23px; padding-top: 22px; border-top: 1px solid #3d3f38; }
.repair-copy-heading { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 10px; color: #aeb0a8; font-size: .65rem; font-weight: 900; letter-spacing: .09em; }
.repair-copy-heading b { color: var(--acid); letter-spacing: 0; }
.repair-copy-prompt { min-height: 4.6em; margin-bottom: 12px; padding: 16px 17px; border-radius: 9px; background: #292b26; color: #777a72; font: 500 1.16rem/1.8 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; overflow-wrap: anywhere; }
.repair-copy-prompt span { border-radius: 2px; transition: color .08s ease, background .08s ease; }
.repair-copy-prompt .correct { color: #8fe0b8; }
.repair-copy-prompt .incorrect { color: #ffaaa1; background: rgba(236, 98, 83, .18); text-decoration: underline; text-decoration-thickness: 2px; }
.repair-copy-prompt .current { color: white; border-left: 2px solid var(--acid); }
.repair-copy-prompt .optional { color: #aeb0a8; opacity: .55; }
.repair-copy-prompt .extra { opacity: .8; }
.repair-copy.is-complete .repair-copy-prompt { box-shadow: inset 0 0 0 1px #4d735e; }
.repair-copy-translation { margin-bottom: 13px; padding: 10px 12px; border-left: 3px solid #696bd1; background: #292b26; }
.repair-copy-translation span { color: #9b9cd9; font-size: .58rem; font-weight: 900; letter-spacing: .1em; }
.repair-copy-translation p { margin: 4px 0 0; color: #d5d7cf; font: italic .78rem/1.45 Georgia, "Times New Roman", serif; }
.repair-copy textarea { display: block; min-height: 72px; resize: vertical; font: 500 .94rem/1.55 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; }
.repair-copy textarea:disabled { color: #8fe0b8; background: #273a30; opacity: 1; }
.repair-copy-assist { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; margin-top: 9px; }
.repair-copy-assist button { flex: 0 0 auto; min-height: 36px; border: 1px solid #66695f; border-radius: 7px; padding: 7px 10px; background: transparent; color: #e3e5dc; font-size: .7rem; font-weight: 800; }
.repair-copy-assist button:hover { border-color: var(--acid); color: var(--acid); }
.repair-copy-assist button:disabled { opacity: .4; cursor: not-allowed; }
.repair-copy-assist span { flex: 1 1 150px; min-width: 0; color: #9b9e94; font-size: .66rem; line-height: 1.35; }
.repair-copy .repair-source { min-height: 0; margin-top: 10px; color: #777a72; font-size: .6rem; }
.repair-complete { margin-top: 22px; padding: 16px; border-radius: 9px; background: #273a30; }
.repair-complete strong { color: #8fe0b8; font-size: .76rem; }
.repair-complete p { margin: 6px 0 0; color: #c8d6cd; font-size: .75rem; line-height: 1.5; }
.next-row { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 18px 30px; border-top: 1px solid var(--line); }
.next-row p { color: var(--muted); font-size: .77rem; margin: 0; }

.sentence-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow); }
.exercise-switch { display: flex; padding: 8px; border-bottom: 1px solid var(--line); background: var(--paper-deep); }
.exercise-switch button { flex: 1; border: 0; border-radius: 8px; padding: 10px 15px; background: transparent; color: var(--muted); font-size: .78rem; font-weight: 800; }
.exercise-switch button.active { background: var(--white); color: var(--ink); box-shadow: 0 2px 9px rgba(0,0,0,.06); }
.sentence-prompt { padding: clamp(30px, 5vw, 58px); text-align: center; }
.sentence-prompt blockquote { max-width: 920px; margin: 18px auto 14px; font: 500 clamp(1.8rem, 3.6vw, 3.4rem)/1.25 Georgia, "Times New Roman", serif; letter-spacing: -.035em; }
.sentence-prompt > p:last-child { max-width: 720px; margin: 0 auto; color: var(--muted); font-size: .8rem; line-height: 1.5; }
.sentence-writing-grid { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.sentence-writing { display: block; padding: 26px 30px; }
.sentence-writing + .sentence-writing { border-left: 1px solid var(--line); }
.sentence-writing > span { display: block; margin-bottom: 12px; color: var(--muted); font-size: .75rem; }
.sentence-writing > span b { margin-right: 4px; color: var(--ink); }
.sentence-writing textarea { width: 100%; resize: vertical; min-height: 110px; border: 1px solid var(--line); border-radius: 10px; padding: 14px; background: var(--paper); color: var(--ink); font-size: 1.05rem; line-height: 1.55; }
.korean-writing textarea:focus { outline-color: var(--ko); }
.japanese-writing textarea:focus { outline-color: var(--ja); }
.match-prompt { background: color-mix(in srgb, var(--ja-soft) 55%, white); }
.match-options { display: grid; gap: 10px; padding: 26px 30px 30px; border-top: 1px solid var(--line); }
.match-option { width: 100%; border: 1px solid var(--line); border-radius: 12px; padding: 17px 20px; background: var(--white); color: var(--ink); text-align: left; font-size: 1rem; line-height: 1.5; }
.match-option::before { content: attr(data-letter); display: inline-grid; place-items: center; width: 27px; height: 27px; margin-right: 12px; border-radius: 50%; background: var(--paper-deep); font-size: .7rem; font-weight: 900; vertical-align: 2px; }
.match-option:hover { border-color: var(--ink); }
.match-option.correct { border-color: var(--success); background: #e8f5ed; }
.match-option.incorrect { border-color: #ae493f; background: #fae9e6; }
.match-option.dimmed { opacity: .48; }
.sentence-results { border-top: 1px solid var(--line); }
.context-focus { padding: 24px 30px; background: var(--acid); text-align: center; }
.context-focus > span { font-size: .65rem; letter-spacing: .13em; font-weight: 900; }
.context-focus strong { display: flex; justify-content: center; align-items: center; gap: 15px; margin-top: 9px; }
.context-focus strong i { font: 500 clamp(1.6rem, 3vw, 2.5rem)/1 Georgia, "Times New Roman", serif; font-style: normal; }
.context-focus strong b { font-size: .9rem; }
.context-focus p { margin: 7px 0 0; color: color-mix(in srgb, var(--ink) 70%, transparent); font-size: .78rem; }
.context-sentences { display: grid; grid-template-columns: 1fr 1fr; }
.context-word-guide { grid-column: 1 / -1; margin: 0; padding: 11px 30px; border-bottom: 1px solid var(--line); background: #f5f7e9; color: var(--muted); font-size: .72rem; text-align: center; }
.context-sentences section { padding: 28px 30px; border-bottom: 1px solid var(--line); }
.context-sentences section + section { border-left: 1px solid var(--line); }
.context-sentences section:last-child { grid-column: 1 / -1; border-left: 0; background: var(--paper); }
.context-sentences span { color: var(--muted); font-size: .65rem; font-weight: 900; letter-spacing: .11em; }
.context-sentences p { margin: 12px 0 0; font-size: 1.1rem; line-height: 1.65; }
.selectable-word { display: inline; border: 0; border-radius: 4px; padding: 1px 2px; margin: 0 -1px; background: transparent; color: inherit; font: inherit; line-height: inherit; text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--acid) 85%, var(--ink)); text-decoration-thickness: 3px; text-underline-offset: 4px; }
.selectable-word:hover { background: var(--acid); text-decoration-color: transparent; }
.selectable-word:focus-visible { outline: 2px solid var(--ja); outline-offset: 1px; }
.context-review-row { display: flex; align-items: end; justify-content: space-between; gap: 25px; padding: 24px 30px; }
.context-review-row > div > span { display: block; margin-bottom: 10px; color: var(--muted); font-size: .76rem; }
.context-rating-buttons { display: flex; flex-wrap: wrap; gap: 7px; }
.context-rating-buttons button { border: 1px solid var(--line); border-radius: 99px; padding: 8px 12px; background: var(--white); color: var(--ink); font-size: .73rem; font-weight: 800; }
.context-rating-buttons button.selected { border-color: var(--ink); background: var(--ink); color: white; }
.sentence-attribution { margin: 0; padding: 12px 30px; border-top: 1px solid var(--line); color: var(--muted); font-size: .65rem; }
.sentence-attribution a { color: inherit; }

.session-finished { margin-top: 70px; max-width: 760px; }
.session-finished h2 { font: 500 clamp(2.8rem, 5vw, 5rem)/1 Georgia, "Times New Roman", serif; letter-spacing: -.05em; margin: 15px 0; }
.session-finished > p:not(.eyebrow) { color: var(--muted); font-size: 1.05rem; line-height: 1.6; }

.library-view, .progress-view, .games-view { padding: 70px clamp(24px, 6vw, 100px) 100px; max-width: 1500px; margin: 0 auto; }
.page-heading { margin-bottom: 42px; }
.page-heading h1 { max-width: 900px; }
.library-toolbar { display: grid; grid-template-columns: minmax(260px, 1fr) 260px auto; gap: 12px; align-items: center; margin-bottom: 16px; }
.search-box { display: flex; align-items: center; gap: 10px; padding: 0 14px; background: var(--white); border: 1px solid var(--line); border-radius: 10px; }
.search-box input { width: 100%; border: 0; padding: 12px 0; background: transparent; }
.search-box input:focus { outline: 0; }
#library-count { font-size: .8rem; color: var(--muted); white-space: nowrap; }
.table-wrap { overflow-x: auto; overscroll-behavior-inline: contain; -webkit-overflow-scrolling: touch; border: 1px solid var(--line); border-radius: 14px; background: var(--white); }
table { width: 100%; border-collapse: collapse; min-width: 880px; }
th, td { padding: 15px 18px; text-align: left; border-bottom: 1px solid var(--line); }
th { font-size: .67rem; letter-spacing: .11em; text-transform: uppercase; color: var(--muted); background: var(--paper-deep); }
td { font-size: .84rem; }
td:first-child { color: var(--muted); width: 65px; }
td:nth-child(3), td:nth-child(4) { font-size: 1rem; font-weight: 750; }
tr:last-child td { border-bottom: 0; }
.status-pill { display: inline-block; padding: 5px 8px; border-radius: 99px; background: #e4f2ea; color: var(--success); font-size: .67rem; font-weight: 800; white-space: nowrap; }
.status-pill.review { background: #f4e5cf; color: var(--warning); }
.status-pill.damaged { background: #eee4e3; color: #8d423b; }
.status-pill.reference { background: #e8e6f4; color: #57518d; }
.load-more { display: block; margin: 18px auto 0; }

.games-heading { display: grid; grid-template-columns: 1fr minmax(280px, 520px); align-items: end; gap: 40px; }
.games-heading .eyebrow, .games-heading h1 { grid-column: 1; }
.games-heading h1 { margin-bottom: 0; }
.games-heading > p:last-child { grid-column: 2; grid-row: 1 / span 2; }
.game-selector { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 20px; }
.game-selector button { display: grid; grid-template-columns: auto 1fr; column-gap: 13px; padding: 18px 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--white); color: var(--ink); text-align: left; }
.game-selector button > span { grid-row: 1 / span 2; display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--paper-deep); font-size: .65rem; font-weight: 900; }
.game-selector button strong { font-size: .88rem; }
.game-selector button small { margin-top: 3px; color: var(--muted); }
.game-selector button.active { border-color: var(--ink); background: var(--ink); color: white; }
.game-selector button.active > span { background: var(--acid); color: var(--ink); }
.game-selector button.active small { color: #bfc1b9; }
.game-panel { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: var(--white); box-shadow: var(--shadow); }
.game-toolbar { display: flex; align-items: end; justify-content: space-between; gap: 30px; padding: 25px 28px; }
.game-toolbar h2 { margin: 7px 0 0; font: 500 2rem/1 Georgia, "Times New Roman", serif; letter-spacing: -.035em; }
.game-settings { display: flex; gap: 10px; }
.game-settings label > span { display: block; margin-bottom: 5px; color: var(--muted); font-size: .62rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.game-settings select { min-width: 210px; }
.falling-hud { display: flex; align-items: center; gap: 32px; padding: 13px 22px; border-top: 1px solid var(--line); border-bottom: 1px solid #393a34; background: var(--ink); color: white; }
.falling-hud div { min-width: 80px; }
.falling-hud div span { display: block; color: #aeb0a8; font-size: .62rem; text-transform: uppercase; letter-spacing: .08em; }
.falling-hud div strong { display: block; margin-top: 3px; font-size: 1rem; }
#falling-lives { color: var(--acid); letter-spacing: .16em; }
.falling-hud .button { margin-left: auto; min-height: 36px; padding: 7px 13px; border-color: #505249; color: white; }
.falling-arena { position: relative; height: min(56vh, 520px); height: min(56dvh, 520px); min-height: 390px; overflow: hidden; background: #20211e; color: white; }
.speed-lines { position: absolute; inset: 0; opacity: .15; pointer-events: none; }
.speed-lines i { position: absolute; top: -40px; width: 1px; height: 130%; background: linear-gradient(transparent, white, transparent); transform: rotate(8deg); }
.speed-lines i:nth-child(1) { left: 12%; }.speed-lines i:nth-child(2) { left: 31%; }.speed-lines i:nth-child(3) { left: 52%; }.speed-lines i:nth-child(4) { left: 73%; }.speed-lines i:nth-child(5) { left: 90%; }
#falling-layer { position: absolute; inset: 0; }
.falling-word { position: absolute; top: 0; width: 190px; min-height: 76px; padding: 14px 16px; border-radius: 13px; background: var(--white); color: var(--ink); box-shadow: 0 14px 30px rgba(0,0,0,.3); will-change: transform; }
.falling-word.ko { border-top: 5px solid var(--ko); }
.falling-word.ja { border-top: 5px solid var(--ja); }
.falling-word span { display: block; color: var(--muted); font-size: .61rem; letter-spacing: .1em; font-weight: 900; }
.falling-word strong { display: block; margin-top: 8px; font: 500 1.35rem/1.1 Georgia, "Times New Roman", serif; overflow-wrap: anywhere; }
.falling-word.cleared { animation: word-clear .22s ease-out forwards; }
@keyframes word-clear { to { opacity: 0; transform: scale(1.25) rotate(4deg); } }
.missed-answer-flash { position: absolute; z-index: 7; left: 50%; top: 54%; width: min(520px, calc(100% - 32px)); padding: 22px 26px; border-radius: 16px; background: var(--acid); color: var(--ink); text-align: center; box-shadow: 0 20px 60px rgba(0,0,0,.45); transform: translate(-50%, -50%); pointer-events: none; animation: missed-flash 1.8s ease both; }
.missed-answer-flash span, .missed-answer-flash small { display: block; }
.missed-answer-flash span { font-size: .63rem; font-weight: 950; letter-spacing: .13em; }
.missed-answer-flash strong { display: block; margin: 8px 0 5px; font: 500 clamp(1.8rem, 4vw, 3.2rem)/1 Georgia, "Times New Roman", serif; }
.missed-answer-flash small { color: color-mix(in srgb, var(--ink) 70%, transparent); }
@keyframes missed-flash { 0% { opacity: 0; transform: translate(-50%, -42%) scale(.88); } 12%, 72% { opacity: 1; transform: translate(-50%, -50%) scale(1); } 100% { opacity: 0; transform: translate(-50%, -58%) scale(1.04); } }
.landing-line { position: absolute; left: 0; right: 0; bottom: 34px; border-top: 2px dashed #7f8276; }
.landing-line span { position: absolute; right: 15px; top: 8px; color: #878a80; font-size: .55rem; font-weight: 900; letter-spacing: .12em; }
.game-curtain { position: absolute; inset: 0; z-index: 5; display: grid; place-content: center; justify-items: center; padding: 35px; background: rgba(25,26,23,.92); text-align: center; }
.game-curtain h3 { max-width: 620px; margin: 13px 0 10px; font: 500 clamp(2rem, 4vw, 3.5rem)/1 Georgia, "Times New Roman", serif; letter-spacing: -.04em; }
.game-curtain > p:not(.eyebrow) { max-width: 620px; margin: 0 0 22px; color: #b9bbb3; line-height: 1.55; }
.choice-console { display: grid; gap: 10px; padding: 18px 28px 20px; background: var(--paper-deep); }
.choice-console-label { color: var(--muted); font-size: .65rem; font-weight: 900; letter-spacing: .1em; }
.falling-choices { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.falling-choices > p { grid-column: 1 / -1; margin: 0; padding: 13px; border: 1px dashed var(--line); border-radius: 9px; color: var(--muted); font-size: .78rem; text-align: center; }
.falling-choice { position: relative; min-height: 58px; border: 1px solid var(--line); border-radius: 10px; padding: 10px 10px 9px 31px; background: var(--white); color: var(--ink); text-align: left; line-height: 1.25; }
.falling-choice:hover { border-color: var(--ink); }
.falling-choice:disabled { opacity: .55; cursor: not-allowed; }
.falling-choice kbd { position: absolute; top: 10px; left: 9px; display: grid; place-items: center; width: 17px; height: 17px; border-radius: 50%; background: var(--paper-deep); font-size: .58rem; font-family: inherit; font-weight: 900; }
.falling-choice strong, .falling-choice small { display: block; }
.falling-choice strong { font-size: .9rem; overflow-wrap: anywhere; }
.falling-choice small { margin-top: 4px; color: var(--muted); font-size: .65rem; }
.choice-console > p { margin: 0; color: var(--muted); font-size: .72rem; }

.cloze-card { border-top: 1px solid var(--line); }
.cloze-meta { display: flex; justify-content: space-between; padding: 14px 28px; background: var(--ink); color: white; font-size: .63rem; font-weight: 900; letter-spacing: .1em; }
.context-hint { padding: 28px 30px 16px; text-align: center; }
.context-hint span { color: var(--muted); font-size: .62rem; font-weight: 900; letter-spacing: .12em; }
.context-hint p { max-width: 800px; margin: 9px auto 0; color: var(--muted); font: italic 1rem/1.55 Georgia, "Times New Roman", serif; }
.cloze-sentence { max-width: 980px; min-height: 2.6em; margin: 10px auto 25px; padding: 0 30px; text-align: center; font: 500 clamp(1.8rem, 4vw, 3.4rem)/1.3 Georgia, "Times New Roman", serif; letter-spacing: -.03em; }
.cloze-sentence .blank, .cloze-blank { display: inline-block; min-width: 120px; margin: 0 4px; border-bottom: 3px solid var(--ko); color: transparent; }
.cloze-form { padding: 25px 30px; border-top: 1px solid var(--line); background: var(--paper-deep); }
.cloze-form > label { display: block; margin-bottom: 9px; color: var(--muted); font-size: .7rem; font-weight: 800; }
.cloze-form > div { display: flex; gap: 9px; }
.cloze-form input { flex: 1; min-width: 0; border: 1px solid var(--line); border-radius: 9px; padding: 12px 14px; background: var(--white); color: var(--ink); font-size: 1.15rem; }
.cloze-form > p { min-height: 1.2em; margin: 9px 0 0; color: var(--muted); font-size: .74rem; }
.cloze-form > p.good { color: var(--success); font-weight: 800; }
.cloze-form > p.bad { color: #a64339; font-weight: 800; }
.cloze-result { padding: 30px; border-top: 1px solid var(--line); }
.cloze-result > div:not(.cloze-word-pair) { display: grid; grid-template-columns: 100px 1fr; padding: 15px 0; border-bottom: 1px solid var(--line); }
.cloze-result > div > span { color: var(--muted); font-size: .65rem; font-weight: 900; letter-spacing: .08em; }
.cloze-result > div > p { margin: 0; font-size: 1rem; line-height: 1.6; }
.cloze-word-pair { display: flex; align-items: center; justify-content: center; gap: 13px; padding: 25px; }
.cloze-word-pair i { font: 500 1.7rem/1 Georgia, "Times New Roman", serif; font-style: normal; }
.cloze-word-pair small { color: var(--muted); }
.cloze-result > .button { display: block; margin-left: auto; }
.cloze-stats { display: flex; align-items: center; gap: 35px; padding: 20px 28px; border-top: 1px solid var(--line); background: var(--paper-deep); }
.cloze-stats div span { display: block; color: var(--muted); font-size: .65rem; }
.cloze-stats div strong { font-size: 1.1rem; }
.cloze-stats p { margin-left: auto; color: var(--muted); font-size: .72rem; }

.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; background: var(--white); }
.metric-grid article { padding: 25px; }
.metric-grid article + article { border-left: 1px solid var(--line); }
.metric-grid span, .metric-grid small { display: block; color: var(--muted); font-size: .72rem; }
.metric-grid strong { display: block; font: 500 2.9rem/1 Georgia, "Times New Roman", serif; margin: 10px 0 5px; }
.language-progress-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 18px; }
.mastery-card { display: grid; grid-template-columns: 1fr 125px; gap: 28px; padding: 32px; border-radius: 16px; }
.korean-mastery { background: var(--ko-soft); }
.japanese-mastery { background: var(--ja-soft); }
.mastery-card h2, .curriculum-progress h2 { font: 500 2rem/1.05 Georgia, "Times New Roman", serif; margin: 8px 0 25px; letter-spacing: -.035em; }
.mastery-card dl { margin: 0; display: flex; gap: 30px; }
.mastery-card dt { color: var(--muted); font-size: .7rem; }
.mastery-card dd { margin: 5px 0 0; font-weight: 800; }
.mastery-ring { grid-column: 2; grid-row: 1 / span 2; width: 120px; height: 120px; border-radius: 50%; display: grid; place-items: center; background: conic-gradient(var(--ko) var(--value, 0%), rgba(255,255,255,.55) 0); }
.japanese-mastery .mastery-ring { background: conic-gradient(var(--ja) var(--value, 0%), rgba(255,255,255,.55) 0); }
.mastery-ring::before { content: ""; width: 88px; height: 88px; border-radius: 50%; background: color-mix(in srgb, currentColor 0%, white 78%); grid-area: 1 / 1; }
.mastery-ring span { z-index: 1; grid-area: 1 / 1; font-weight: 900; }
.curriculum-progress { margin-top: 18px; padding: 32px; border: 1px solid var(--line); border-radius: 16px; background: var(--white); display: grid; grid-template-columns: 280px 1fr; gap: 50px; }
.section-row { display: grid; grid-template-columns: minmax(160px, 1fr) 2fr 55px; gap: 15px; align-items: center; margin-bottom: 13px; font-size: .76rem; }
.section-row .bar { height: 7px; border-radius: 9px; background: var(--paper-deep); overflow: hidden; }
.section-row .bar i { display: block; height: 100%; background: var(--ink); }
.section-row small { text-align: right; color: var(--muted); }
.context-progress-panel { display: grid; grid-template-columns: 1fr 1.25fr; gap: 40px; margin-top: 18px; padding: 32px; border: 1px solid var(--line); border-radius: 16px; background: var(--ink); color: white; }
.context-progress-panel h2 { font: 500 2rem/1.05 Georgia, "Times New Roman", serif; margin: 8px 0 7px; letter-spacing: -.035em; }
.context-progress-panel > div > p:last-child { max-width: 430px; margin: 0; color: #bdbeb7; font-size: .8rem; line-height: 1.5; }
.context-progress-panel dl { display: grid; grid-template-columns: 1fr 1fr; margin: 0; }
.context-progress-panel dl div { padding: 8px 22px; border-left: 1px solid #3e4039; }
.context-progress-panel dt { color: #aeb0a8; font-size: .7rem; }
.context-progress-panel dd { margin: 6px 0 0; font: 500 2rem/1 Georgia, "Times New Roman", serif; }

dialog { max-height: calc(100vh - 32px); max-height: calc(100dvh - 32px); overflow-y: auto; overscroll-behavior: contain; border: 0; padding: 0; border-radius: 18px; width: min(580px, calc(100vw - 32px)); background: var(--white); color: var(--ink); box-shadow: 0 30px 90px rgba(0,0,0,.25); }
dialog::backdrop { background: rgba(18,18,15,.65); backdrop-filter: blur(5px); }
.settings-panel { padding: 36px; position: relative; }
.settings-panel h2 { font: 500 2.3rem/1.05 Georgia, "Times New Roman", serif; margin: 12px 0; letter-spacing: -.04em; }
.settings-panel > p:not(.eyebrow) { color: var(--muted); line-height: 1.5; }
.dialog-close { position: absolute; top: 14px; right: 14px; border: 0; background: var(--paper-deep); width: 34px; height: 34px; border-radius: 50%; font-size: 1.4rem; }
.settings-panel select { margin-bottom: 18px; }
.settings-actions { display: flex; gap: 9px; flex-wrap: wrap; }
.file-button input { display: none; }
.danger-button { margin-top: 28px; border: 0; padding: 0; background: transparent; color: #a63e34; text-decoration: underline; text-underline-offset: 3px; font-size: .82rem; }
.source-note { margin-top: 28px; padding: 18px; background: var(--paper); border-radius: 10px; }
.source-note strong { font-size: .75rem; }
.source-note p { margin: 5px 0 0; color: var(--muted); font-size: .75rem; line-height: 1.5; }
.word-popup-panel { position: relative; padding: 34px; }
#word-popup { width: min(680px, calc(100vw - 32px)); }
.word-popup-meta { display: flex; justify-content: space-between; gap: 12px; margin: 0 44px 25px 0; color: var(--muted); font-size: .66rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.word-popup-meta span:last-child { padding: 4px 8px; border-radius: 99px; background: var(--paper-deep); color: var(--ink); letter-spacing: 0; text-transform: none; }
.word-popup-panel h2 { margin: 11px 0 4px; font: 500 clamp(2.8rem, 8vw, 5.2rem)/1 Georgia, "Times New Roman", serif; letter-spacing: -.045em; overflow-wrap: anywhere; }
.word-popup-concept { margin: 0 0 25px; color: var(--muted); font-size: 1rem; }
.word-popup-pair { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.word-popup-pair section { padding: 18px; background: var(--ko-soft); }
.word-popup-pair section + section { border-left: 1px solid var(--line); background: var(--ja-soft); }
.word-popup-pair span, .word-popup-pair small { display: block; color: var(--muted); font-size: .65rem; font-weight: 800; letter-spacing: .08em; }
.word-popup-pair strong { display: block; margin-top: 9px; font: 500 1.7rem/1.15 Georgia, "Times New Roman", serif; }
.word-popup-pair small { margin-top: 6px; letter-spacing: 0; }
.word-popup-panel blockquote { margin: 18px 0; padding: 14px 16px; border-left: 4px solid var(--acid); background: var(--paper); color: #52544e; font: italic .9rem/1.55 Georgia, "Times New Roman", serif; }
.word-popup-note { color: var(--muted); font-size: .76rem; line-height: 1.5; }
.word-popup-status { display: block; min-height: 1.25em; margin-top: 9px; color: var(--success); font-weight: 700; }
.word-popup-panel > .button { width: 100%; margin-top: 6px; }
.toast { position: fixed; left: 50%; bottom: 25px; transform: translate(-50%, 20px); background: var(--ink); color: white; padding: 11px 16px; border-radius: 9px; font-size: .8rem; opacity: 0; pointer-events: none; transition: .2s ease; z-index: 100; }
.toast.visible { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 1000px) {
  .study-layout { grid-template-columns: 1fr; }
  .study-rail { border-right: 0; border-bottom: 1px solid var(--line); padding: 20px clamp(24px, 6vw, 60px); display: grid; grid-template-columns: auto 1fr 220px; gap: 18px 30px; align-items: center; }
  .rail-kicker, .today-number, .rail-label { grid-column: 1; }
  .today-number { font-size: 2.8rem; }
  .rail-label { align-self: start; }
  .rail-rule, .source-card { display: none; }
  .rail-stats { grid-column: 2; grid-row: 1 / span 3; margin: 0; }
  .study-rail > .field-label, .study-rail > select { grid-column: 3; }
  .study-rail > .field-label { align-self: end; margin: 0; }
  .study-rail > select { align-self: start; }
  .metric-grid { grid-template-columns: 1fr 1fr; }
  .games-heading { grid-template-columns: 1fr; }
  .games-heading > p:last-child { grid-column: 1; grid-row: auto; }
  .game-toolbar { align-items: stretch; flex-direction: column; }
  .metric-grid article:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .metric-grid article:nth-child(4) { border-top: 1px solid var(--line); }
  .curriculum-progress { grid-template-columns: 1fr; gap: 10px; }
  .context-progress-panel { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .site-header { height: auto; min-height: 70px; grid-template-columns: 1fr auto; padding: calc(12px + env(safe-area-inset-top)) calc(18px + env(safe-area-inset-right)) 12px calc(18px + env(safe-area-inset-left)); background: var(--paper); -webkit-backdrop-filter: none; backdrop-filter: none; }
  .main-nav { position: fixed; left: 50%; bottom: calc(12px + env(safe-area-inset-bottom)); width: min(470px, calc(100% - 24px - env(safe-area-inset-left) - env(safe-area-inset-right))); transform: translateX(-50%); z-index: 50; justify-content: space-between; box-shadow: 0 8px 35px rgba(0,0,0,.22); background: var(--ink); }
  .nav-button { flex: 1; min-height: 44px; color: #bbbcb5; padding: 9px 7px; white-space: nowrap; }
  .nav-button.active { background: var(--acid); color: var(--ink); }
  .study-layout { min-height: calc(100vh - 70px); min-height: calc(100dvh - 70px); }
  .study-rail { grid-template-columns: 92px minmax(0, 1fr); grid-template-rows: auto auto; gap: 4px 16px; padding: 14px 20px; }
  .rail-kicker { grid-column: 1; grid-row: 1; }
  .today-number { grid-column: 1; grid-row: 2; margin-top: 0; font-size: 2.25rem; }
  .rail-label { display: none; }
  .study-rail > .field-label { grid-column: 2; grid-row: 1; align-self: end; margin: 0; }
  .study-rail > select { grid-column: 2; grid-row: 2; align-self: start; }
  .rail-stats { display: none; }
  .study-stage { padding: 30px 16px calc(104px + env(safe-area-inset-bottom)); }
  .stage-header { align-items: start; }
  .session-progress { width: 90px; }
  .stage-subtitle { font-size: .85rem; }
  .answer-grid, .result-grid { grid-template-columns: 1fr; }
  .repair-grid { grid-template-columns: 1fr; }
  .sentence-writing-grid, .context-sentences { grid-template-columns: 1fr; }
  .context-word-guide { grid-column: auto; }
  .language-answer + .language-answer, .result-panel + .result-panel { border-left: 0; border-top: 1px solid var(--line); }
  .repair-panel + .repair-panel { border-left: 0; border-top: 1px solid #3d3f38; }
  .sentence-writing + .sentence-writing, .context-sentences section + section { border-left: 0; border-top: 1px solid var(--line); }
  .context-sentences section:last-child { grid-column: auto; }
  .prompt-block { padding: 34px 18px 28px; }
  .language-answer, .result-panel { padding: 22px; }
  .card-actions { padding: 16px 20px; }
  .card-actions .button { flex: 1; }
  .next-row { align-items: stretch; flex-direction: column; }
  .context-review-row { align-items: stretch; flex-direction: column; }
  .next-row .button { width: 100%; }
  .context-review-row .button { width: 100%; }
  .word-popup-panel { padding: 27px 20px; }
  .word-popup-pair { grid-template-columns: 1fr; }
  .word-popup-pair section + section { border-left: 0; border-top: 1px solid var(--line); }
  .library-view, .progress-view { padding: 45px 16px calc(104px + env(safe-area-inset-bottom)); }
  .games-view { padding: 30px 16px calc(104px + env(safe-area-inset-bottom)); }
  .games-view .page-heading { margin-bottom: 24px; }
  .games-view .page-heading h1 { margin-block: 8px; font-size: 2.35rem; }
  .games-view .page-heading > p:last-child { font-size: .85rem; line-height: 1.45; }
  .game-selector { grid-template-columns: 1fr 1fr; gap: 8px; }
  .game-selector button { display: block; min-height: 78px; padding: 13px 12px; }
  .game-selector button > span { display: none; }
  .game-selector button strong, .game-selector button small { display: block; }
  .game-selector button small { margin-top: 5px; font-size: .7rem; line-height: 1.3; }
  .game-settings { flex-direction: column; }
  .game-settings select { min-width: 0; }
  .falling-hud { gap: 13px; padding: 12px; overflow-x: auto; }
  .falling-hud div { min-width: 0; }
  .falling-arena { height: clamp(270px, 44dvh, 390px); min-height: 270px; }
  .falling-word { width: 145px; min-height: 68px; }
  .falling-word strong { font-size: 1.05rem; }
  .choice-console { padding: 14px 16px 16px; }
  #falling-game.is-running .choice-console { position: sticky; bottom: calc(72px + env(safe-area-inset-bottom)); z-index: 12; box-shadow: 0 -10px 25px rgba(25,26,23,.12); }
  .falling-choices { grid-template-columns: 1fr 1fr; }
  .falling-choice { min-height: 54px; }
  .cloze-form > div { align-items: stretch; flex-direction: column; }
  .cloze-result > div:not(.cloze-word-pair) { grid-template-columns: 1fr; gap: 7px; }
  .cloze-word-pair { flex-wrap: wrap; }
  .cloze-stats { align-items: start; flex-wrap: wrap; }
  .cloze-stats p { width: 100%; margin: 0; }
  .library-toolbar { grid-template-columns: 1fr; }
  .metric-grid, .language-progress-grid { grid-template-columns: 1fr; }
  .metric-grid article + article { border-left: 0; border-top: 1px solid var(--line); }
  .mastery-card { grid-template-columns: 1fr 95px; padding: 24px; gap: 10px; }
  .mastery-ring { width: 90px; height: 90px; }
  .mastery-ring::before { width: 67px; height: 67px; }
  .mastery-card dl { gap: 18px; }
  .section-row { grid-template-columns: 1fr 1.5fr 42px; }
  input, textarea, select { font-size: max(16px, 1em); }
  dialog { width: calc(100vw - 20px); max-height: calc(100dvh - 20px - env(safe-area-inset-top) - env(safe-area-inset-bottom)); }
  .toast { bottom: calc(82px + env(safe-area-inset-bottom)); width: max-content; max-width: calc(100vw - 32px); text-align: center; }
}

@media (max-width: 410px) {
  .brand small { display: none; }
  .nav-button { font-size: .73rem; letter-spacing: -.01em; }
  .study-mode-toggle { width: 100%; }
  .study-mode-toggle button { flex: 1; padding-inline: 8px; }
  .study-mode-toggle button em { display: none; }
  .stage-header { flex-direction: column; gap: 12px; }
  .session-progress { width: 100%; text-align: left; }
  .card-actions { flex-direction: column-reverse; }
  .card-actions .button { width: 100%; }
  .settings-panel { padding: 32px 22px; }
}

@media (max-width: 900px) and (orientation: landscape) and (max-height: 540px) {
  .falling-arena { height: 52dvh; min-height: 220px; }
  #falling-game.is-running .choice-console { position: relative; bottom: auto; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}