:root{--paper:#f8f9fc;--white:#fff;--ink:#17233b;--muted:#586780;--line:#e0e5ee;--blue:#234edd;--blue-soft:#edf2ff;--gold:#eab848;--radius:16px;font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR",sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}html{scroll-behavior:smooth;scrollbar-color:#aab7d0 var(--paper)}body{margin:0}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default}a{color:inherit;text-decoration:none}button{color:inherit}::selection{background:#d9e3ff}input{caret-color:var(--blue)}:focus-visible{outline:3px solid 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@media (min-width:760px) and (max-width:900px){.detail-layout{grid-template-columns:1fr;max-width:680px;margin-inline:auto}.media-column{position:static}.poster img{max-height:440px}}

/* App identity: Soft Silver / Soft Graphite, GUEST gold and GATE blue. */
:root{--paper:#f0f1f3;--white:#fff;--ink:#20242b;--muted:#57606e;--line:#d9dde2;--blue:#076bb6;--blue-soft:#e4f0fa;--gold:#a55b00;--surface:rgba(255,255,255,.88);--button-text:#fff;--hero:#f9fafb;color-scheme:light}
:root[data-theme=dark]{--paper:#111316;--white:#22262c;--ink:#f3f5f7;--muted:#b0b6c0;--line:#393e46;--blue:#70b5ff;--blue-soft:#20364b;--gold:#ffb331;--surface:rgba(34,38,44,.94);--button-text:#111b26;--hero:#1b2026;color-scheme:dark}
body{background:var(--paper);padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom)}
body:before{content:"";position:absolute;inset:0 0 auto;height:650px;z-index:-1;pointer-events:none;background:linear-gradient(155deg,transparent 20%,#969da510 48%,transparent 48%),linear-gradient(25deg,transparent 48%,#969da510 49%,transparent 80%)}
.header{max-width:1088px;padding:22px 24px}.brand{font-size:20px;letter-spacing:.025em}.brand small{font-size:12px;letter-spacing:0;font-weight:500;margin-top:4px}.brand b{font-weight:800}.appearance{position:relative;display:inline-flex;flex-shrink:0;color:var(--muted)}.appearance::after{content:"";position:absolute;right:16px;top:50%;width:7px;height:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:translateY(-70%) rotate(45deg);pointer-events:none}.appearance select{appearance:none;-webkit-appearance:none;display:block;border:1px solid var(--line);border-radius:22px;min-height:44px;background:var(--surface);color:var(--muted);padding:10px 40px 10px 16px;font-size:13px;line-height:22px;max-width:138px;cursor:pointer}.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}
main{max-width:1040px;margin-top:18px}.home-top{gap:32px}.intro{padding:8px 0 4px}.intro h1{font-size:clamp(32px,4vw,46px);font-weight:750;line-height:1.3;letter-spacing:-.035em}.intro p{font-size:16px;line-height:1.8;margin-top:16px}.tool-names{display:flex;gap:24px;margin-top:26px}.tool-names>span{display:flex;flex-direction:column;gap:5px}.tool-names>span+span{border-left:1px solid var(--line);padding-left:24px}.tool-names strong{font-size:32px;letter-spacing:-.03em;font-weight:800}.tool-names small{font-size:11px;color:var(--muted);line-height:1.5;word-break:keep-all}
.start{background:var(--hero);color:var(--ink);border:1px solid var(--line);padding:25px 26px;min-height:0;border-radius:16px;display:block}.start-copy{display:block}.start h2{font-size:26px;line-height:1.35;margin:0 0 12px}.start p{font-size:15px;color:var(--muted);line-height:1.75}.language-pair{display:flex;gap:24px;margin-top:21px}.language-pair>span{font-size:17px;font-weight:750;letter-spacing:.025em}.language-pair small{display:block;margin-top:5px;font-size:12px;font-weight:500;letter-spacing:0;color:var(--muted)}.guest{color:var(--gold)}.gate{color:var(--blue)}.start-action{margin-top:24px;padding-top:18px;border-top:1px solid var(--line);color:var(--blue);font-size:16px;justify-content:space-between}.start-action svg{width:22px}
.resume{background:var(--surface);min-height:64px;border:1px solid var(--line);margin-top:20px;border-radius:14px}.section-head{margin-top:38px}.search{background:var(--surface);border-radius:14px;min-height:52px}.search input::placeholder{color:var(--muted)}.filters{gap:4px;margin:12px 0 16px}.filter{min-height:46px;border-radius:24px;padding:10px 13px;font-size:14px}.filter[aria-pressed=true]{background:var(--blue-soft);color:var(--blue)}.topic-list{background:var(--surface);padding:0 20px}.topic{gap:15px;padding:20px 0;min-height:108px}.topic-number{width:32px;height:36px;display:flex;align-items:center;justify-content:center;padding:0;margin-top:1px;color:var(--blue)}.topic-number svg{width:23px;height:23px}.topic h3{font-size:17px}.topic p{font-size:15px;line-height:1.6}.topic-meta{font-size:12px}.chevron{color:var(--muted)}.faq{margin-top:38px}.faq summary{font-size:16px;padding:20px 0}.notice{font-size:14px}.footer{max-width:1040px;font-size:12px;padding-bottom:32px}
.detail-tags span,.meanings span{background:var(--blue-soft)}.clip-tab{background:var(--surface);border-radius:24px}.clip-tab[aria-pressed=true],.primary{background:var(--blue);color:var(--button-text)}.primary.done{background:var(--blue-soft);color:var(--blue)}.detail-heading p{max-width:60ch}.practice{background:var(--blue-soft)}.practice p{color:var(--ink)}.unfilmed,.secondary{background:var(--surface)}.play-overlay{color:#20242b}.play-overlay svg{fill:#20242b}.poster,.media-shell,.media-shell video{background:#111316}.steps .step-number{color:var(--blue);background:var(--blue-soft)}.steps li{line-height:1.8}.detail-layout{gap:30px}.detail-actions{flex-wrap:wrap}.primary{min-width:150px}.media-meta select{min-height:44px}.detail-top{margin-bottom:22px}.counter{line-height:1.5;text-align:right}::selection{background:var(--blue-soft);color:var(--ink)}:focus-visible{outline-color:var(--blue)}.search:focus-within{outline-color:var(--blue)}
@media(min-width:760px){.home-top{grid-template-columns:1.1fr 1fr}.intro p{max-width:none}.catalog-tools{display:block}.catalog-tools .search{max-width:none}.filters{margin:12px 0 16px}.topic-list{margin-top:0}.topic-meta{margin-inline:18px}.detail-layout{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);max-width:none;margin-inline:0}.media-column{position:sticky;top:24px}.poster img{max-height:500px}.topic-copy{grid-template-columns:minmax(0,1fr) auto}}
@media(min-width:1000px){.catalog-tools{display:flex;gap:20px;margin-bottom:18px}.catalog-tools .search{max-width:420px}.filters{margin:0}.filter{padding-inline:12px}}
@media(max-width:759px){.header{padding:18px 20px}main{padding:0 20px;margin-top:12px}.intro{margin:0 0 25px}.intro h1{font-size:34px}.intro p{font-size:15px;margin-top:12px}.tool-names{margin-top:22px;gap:20px}.tool-names>span+span{padding-left:20px}.tool-names strong{font-size:29px}.start{padding:22px}.start h2{font-size:24px}.start h2 br{display:none}.start p{font-size:15px}.language-pair{margin-top:18px}.start-action{margin-top:20px;padding-top:16px}.section-head{margin-top:30px}.section-head h2{font-size:22px}.filters{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin-inline:-20px;padding-inline:20px;gap:3px}.filter{flex-shrink:0;padding:10px 12px;font-size:13px}.topic-list{padding:0 16px}.topic{gap:11px}.topic-number{width:26px}.topic h3{font-size:17px}.topic p{font-size:14px}.detail-layout{display:flex;flex-direction:column;gap:28px}.media-column,.instructions{width:100%;min-width:0}.detail-heading h1{font-size:29px}.detail-heading p{font-size:16px}.poster img{max-height:52svh}.footer{padding-inline:20px;flex-wrap:wrap}.faq h2{font-size:21px}}
@media(max-width:360px){main{padding-inline:16px}.header{padding-inline:16px}.intro h1{font-size:31px}.tool-names{gap:15px}.tool-names>span+span{padding-left:15px}.tool-names small{font-size:10px}.start{padding:20px}.start h2{font-size:22px}.filters{margin-inline:-16px;padding-inline:16px}.topic-list{padding-inline:13px}.topic{gap:8px}.topic h3{font-size:16px}}
@media(hover:hover){.start:hover{background:var(--surface);border-color:var(--blue)}.filter:hover{color:var(--blue)}.topic:hover h3{color:var(--blue)}}
@media(prefers-reduced-transparency:reduce){:root{--surface:var(--white)}}

/* Show the paused recording immediately, then hide its prompt when playback starts. */
.media-shell video{width:100%;height:auto;aspect-ratio:512 / 590;object-fit:contain;max-height:65svh;min-height:0}
.video-prompt{position:absolute;inset:0;width:100%;height:100%;display:flex;align-items:flex-end;justify-content:space-between;gap:12px;padding:22px 18px;text-align:left;color:#fff;background:linear-gradient(transparent 48%,rgba(10,15,22,.86));border-radius:inherit}
.video-prompt[hidden]{display:none}.video-prompt-copy{display:flex;flex-direction:column;gap:7px;min-width:0}.video-prompt-copy strong{font-size:17px;line-height:1.4;word-break:keep-all}.video-prompt-copy>span{font-size:13px;line-height:1.6;word-break:keep-all}
.video-prompt-play{display:flex;align-items:center;gap:7px;flex-shrink:0;background:white;color:#20242b;min-height:46px;border-radius:24px;padding:11px 16px;font-weight:700;font-size:14px}.video-prompt-play svg{width:17px;height:17px;fill:currentColor}
@media(max-width:360px){.video-prompt{padding:16px 12px;gap:9px}.video-prompt-play{padding-inline:12px}.video-prompt-copy strong{font-size:16px}}

/* Homepage icon shares the header row with the appearance selector. */
.header-actions{display:flex;align-items:center;gap:6px;flex-shrink:0}
.home-return{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;color:var(--blue);border:1px solid var(--line);border-radius:50%;background:var(--surface)}
.home-return svg{width:20px;height:20px}
.locale-select{display:inline-flex;min-width:0}.locale-select select{appearance:none;-webkit-appearance:none;min-height:44px;max-width:132px;border:1px solid var(--line);border-radius:22px;background:var(--surface);color:var(--muted);padding:9px 12px;font-size:13px}
@media(max-width:520px){.header{align-items:flex-start}.header-actions{display:grid;grid-template-columns:44px minmax(0,1fr);max-width:190px}.locale-select{min-width:0}.locale-select select{width:100%;max-width:none}.appearance{grid-column:2}.appearance select{width:100%;max-width:none}.brand{padding-top:4px}}