:root{color-scheme:dark;--ink:#101113;--panel:#191b1e;--panel-2:#202226;--line:#34373c;--text:#f5f4f0;--muted:#929499;--accent:#f04b2e;--accent-soft:#ff765b;--green:#a8ec84;--max:1160px;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","Apple SD Gothic Neo","Noto Sans KR",sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ink);color:var(--text);min-width:320px}
body:before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.26;background-image:radial-gradient(#ffffff12 .6px,transparent .6px);background-size:5px 5px;z-index:9;mix-blend-mode:screen}
button,input{font:inherit}
button{cursor:pointer}
a{color:inherit}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #fff;outline-offset:3px}
.site-shell{min-height:100vh;display:flex;flex-direction:column}
.site-header,.site-footer{width:min(var(--max),calc(100% - 48px));margin-inline:auto;display:flex;justify-content:space-between;align-items:center}
.site-header{height:86px;border-bottom:1px solid var(--line);gap:24px}
.wordmark{display:inline-flex;align-items:center;gap:12px;text-decoration:none;font-size:22px;font-weight:950;font-style:italic;letter-spacing:-1.8px;white-space:nowrap}
.wordmark-slash{color:var(--accent)}
.wordmark-symbol{position:relative;width:26px;height:24px;display:inline-flex;align-items:flex-end;gap:3px;transform:skew(-24deg)}
.wordmark-symbol span{display:block;background:var(--accent);width:6px;height:12px}.wordmark-symbol span:nth-child(2){height:19px}.wordmark-symbol span:nth-child(3){height:24px}
.header-right,.eyebrow,.section-label,.micro,.site-footer,.track-caption,.quiz-counter,.number-button,.result-number,.result-label,.stat-label{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.12em;text-transform:uppercase}
.header-right{font-size:10px;font-weight:700;color:#a6a8aa;display:flex;align-items:center;gap:9px;white-space:nowrap}.header-pulse{width:6px;height:6px;background:var(--accent);border-radius:50%;box-shadow:0 0 0 5px #f04b2e22}.header-index{margin-left:12px;color:#67696d}
main{width:min(var(--max),calc(100% - 48px));margin-inline:auto;flex:1}
.site-footer{min-height:94px;border-top:1px solid var(--line);gap:20px;color:#8d8f93;font-size:10px;line-height:1.5}.site-footer a{text-underline-offset:3px}.footer-dim{color:#62656a}
.intro{padding:64px 0 90px}.intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:45px;align-items:center}.eyebrow{display:flex;align-items:center;gap:10px;color:var(--accent-soft);font-size:11px;font-weight:800}.eyebrow:before{content:"";width:24px;height:2px;background:var(--accent)}
.hero-title{font-size:clamp(62px,8.3vw,128px);line-height:.89;letter-spacing:-.085em;font-weight:950;font-style:italic;margin:23px 0 27px}.hero-title span{display:block}.hero-title .outline-text{color:transparent;-webkit-text-stroke:1.5px #f6f5f0;text-shadow:none}
.hero-korean{font-size:clamp(21px,2.5vw,31px);font-weight:800;line-height:1.4;letter-spacing:-.045em;margin:0 0 16px}.hero-copy{color:#adafb2;font-size:15px;line-height:1.8;max-width:450px;margin:0}.hero-divider{height:1px;background:var(--line);max-width:480px;margin:34px 0 24px}.hero-facts{display:flex;gap:24px;flex-wrap:wrap}.hero-facts div{display:flex;align-items:baseline;gap:7px}.hero-facts strong{font:900 22px/1 ui-monospace,monospace;color:var(--text)}.hero-facts span{font:700 10px ui-monospace,monospace;color:var(--muted);letter-spacing:.12em}
.hero-rule{color:#a4a6aa;font-size:14px;font-weight:650}
.hero-visual{position:relative;min-height:480px;background:linear-gradient(145deg,#202226,#17191b);border:1px solid #393c40;overflow:hidden;clip-path:polygon(0 0,100% 0,100% calc(100% - 28px),calc(100% - 28px) 100%,0 100%)}
.hero-visual:before,.track-stage:before{content:"";position:absolute;inset:0;background-image:linear-gradient(#ffffff0c 1px,transparent 1px),linear-gradient(90deg,#ffffff0c 1px,transparent 1px);background-size:36px 36px;mask-image:linear-gradient(120deg,#000,transparent 90%)}
.visual-top{position:absolute;top:24px;left:28px;right:28px;display:flex;justify-content:space-between;color:#9a9da0;font:700 10px ui-monospace,monospace;letter-spacing:.13em}.visual-top b{color:var(--accent);font-weight:900}.visual-cross{position:absolute;width:16px;height:16px;opacity:.45}.visual-cross:before,.visual-cross:after{content:"";position:absolute;background:#888}.visual-cross:before{width:16px;height:1px;top:7px}.visual-cross:after{height:16px;width:1px;left:7px}.visual-cross.a{top:88px;left:50px}.visual-cross.b{right:44px;bottom:70px}
.hero-track{position:absolute;width:82%;height:82%;object-fit:contain;left:9%;top:10%;filter:drop-shadow(0 0 22px #ffffff15);transform:rotate(-7deg)}
.visual-bottom{position:absolute;bottom:27px;left:28px;right:28px;display:flex;justify-content:space-between;align-items:flex-end}.visual-bottom span{color:#8a8d91;font:700 10px ui-monospace,monospace;letter-spacing:.16em}.visual-bottom strong{font:italic 900 36px ui-sans-serif,sans-serif;color:var(--accent);line-height:1}
.difficulty-section{margin-top:78px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;border-bottom:1px solid var(--line);padding-bottom:18px}.section-label{font-size:11px;color:var(--accent);font-weight:800}.section-head h2{font-size:clamp(28px,3.8vw,47px);margin:7px 0 0;letter-spacing:-.05em}.section-note{font-size:12px;color:var(--muted);padding-bottom:5px}
.difficulty-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}.difficulty-card{position:relative;text-align:left;border:1px solid #3a3d41;background:#1b1d20;color:var(--text);min-height:202px;padding:24px;transition:transform .18s,border-color .18s,background .18s}.difficulty-card:hover{transform:translateY(-4px);border-color:var(--accent)}.difficulty-card.selected{border-color:var(--accent);background:linear-gradient(155deg,#302220,#1b1d20 60%)}.difficulty-card.selected:before{content:"";position:absolute;inset:0 0 auto;background:var(--accent);height:3px}.difficulty-card .card-top{display:flex;justify-content:space-between;align-items:center}.difficulty-card .card-n{color:#777a7f;font:700 11px ui-monospace,monospace}.difficulty-card .card-check{border:1px solid #63666a;border-radius:50%;width:20px;height:20px;display:grid;place-items:center;font-size:12px;color:transparent}.difficulty-card.selected .card-check{background:var(--accent);border-color:var(--accent);color:#fff}.difficulty-card h3{font-size:28px;margin:29px 0 8px;letter-spacing:-.055em}.difficulty-card p{font-size:13px;line-height:1.5;color:#aaaeb2;margin:0}.difficulty-card .card-type{display:inline-block;margin-top:17px;color:#eceded;font:700 10px ui-monospace,monospace;letter-spacing:.11em}
.difficulty-card{min-height:152px}.difficulty-card h3{margin:19px 0 0}.difficulty-card .card-type{margin-top:8px;color:#aeb0b3}
.start-row{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:20px}.start-notice{color:#898c90;font-size:12px;line-height:1.6}.primary-button,.secondary-button,.ghost-button{border:0;min-height:56px;padding:0 26px;display:inline-flex;align-items:center;justify-content:center;gap:16px;font-weight:800;letter-spacing:-.02em}.primary-button{background:var(--accent);color:#fff;min-width:234px;box-shadow:0 8px 30px #f04b2e24;transition:background .2s,transform .2s}.primary-button:hover{background:#ff6449;transform:translateY(-2px)}.primary-button:disabled{opacity:.45;cursor:not-allowed;transform:none}.primary-button .arrow{font-size:20px;font-weight:500}.secondary-button{background:var(--text);color:var(--ink)}.secondary-button:hover{background:#d9d9d5}.ghost-button{border:1px solid #4b4e52;background:transparent;color:var(--text);min-width:124px}.ghost-button:hover{background:#292c2f}.ghost-button:disabled{opacity:.3;cursor:not-allowed}
.start-row{justify-content:flex-end}
.quiz{padding:46px 0 72px}.quiz-head{display:flex;justify-content:space-between;align-items:end;gap:25px}.quiz-head h1{font-size:clamp(30px,4.2vw,54px);letter-spacing:-.065em;margin:8px 0 0}.quiz-counter{font-size:12px;color:#b9babd;font-weight:700}.quiz-counter strong{font-size:38px;color:var(--text);letter-spacing:-.07em}.quiz-progress{height:3px;background:#35383c;margin:25px 0 20px}.quiz-progress span{display:block;height:100%;background:var(--accent);transition:width .25s}.number-nav{display:grid;grid-template-columns:repeat(10,1fr);gap:7px;margin-bottom:20px}.number-button{height:42px;border:1px solid #3b3e43;background:#1c1e21;color:#7f8286;font-size:11px;font-weight:800}.number-button:hover{border-color:#aaa}.number-button.answered{color:#fff;border-color:#777b80}.number-button.current{background:var(--accent);border-color:var(--accent);color:#fff}.number-button.current.answered{box-shadow:inset 0 -3px #fff8}
.quiz-layout{display:grid;grid-template-columns:minmax(0,1.18fr) minmax(310px,.82fr);gap:18px}.track-stage{min-height:520px;position:relative;overflow:hidden;background:radial-gradient(ellipse at 50% 45%,#282b2f,#1b1d20 70%);border:1px solid #393c41;display:flex;align-items:center;justify-content:center}.track-stage img{position:relative;width:80%;height:78%;object-fit:contain;z-index:1;filter:drop-shadow(0 2px 13px #ffffff20)}.stage-tag{position:absolute;z-index:2;left:25px;top:23px;color:#9da0a3;font:700 10px ui-monospace,monospace;letter-spacing:.15em}.stage-tag b{color:var(--accent)}.stage-corners:before,.stage-corners:after{content:"";position:absolute;width:18px;height:18px;border-color:#777a7d;opacity:.65;z-index:2}.stage-corners:before{right:24px;top:24px;border-top:1px solid;border-right:1px solid}.stage-corners:after{left:24px;bottom:24px;border-left:1px solid;border-bottom:1px solid}.track-caption{position:absolute;left:24px;bottom:25px;color:#787b80;font-size:10px;z-index:2}
.answer-panel{background:var(--panel);border:1px solid #383b40;padding:26px;display:flex;flex-direction:column}.answer-panel .micro{color:var(--accent);font-size:10px;font-weight:800}.answer-panel h2{font-size:25px;letter-spacing:-.05em;line-height:1.35;margin:17px 0 7px}.answer-panel p{color:#9da0a5;font-size:12px;line-height:1.7;margin:0 0 23px}.option-list{display:grid;gap:8px}.option{min-height:50px;border:1px solid #414449;background:#202226;color:#d9dbdc;text-align:left;padding:10px 13px;display:flex;align-items:center;gap:12px;font-size:14px;font-weight:650;transition:border-color .15s,background .15s}.option:hover{border-color:#c2c3c4}.option.active{background:#f04b2e16;border-color:var(--accent);color:#fff}.option-letter{width:24px;height:24px;border:1px solid #606369;display:grid;place-items:center;font:800 10px ui-monospace,monospace;color:#9a9da1;flex:0 0 auto}.option.active .option-letter{border-color:var(--accent);background:var(--accent);color:#fff}.input-label{display:block;color:#a7a9ad;font-size:12px;margin-bottom:10px}.answer-input{width:100%;height:58px;background:#101113;border:1px solid #56595d;color:#fff;padding:0 17px;font-size:17px;outline:none}.answer-input:focus{border-color:var(--accent)}.input-help{color:#777b7f;font-size:12px;line-height:1.6;margin-top:13px}.answer-spacer{flex:1}.answer-status{border-top:1px solid #383b40;padding-top:18px;margin-top:24px;display:flex;justify-content:space-between;font:700 11px ui-monospace,monospace;color:#8e9195}.answer-status strong{color:#fff}.quiz-actions{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:20px}.quiz-actions-right{display:flex;gap:9px}.quit-button{border:0;background:transparent;color:#777b7f;text-decoration:underline;text-underline-offset:4px;padding:14px 0;font-size:12px}.quit-button:hover{color:#fff}
.answer-panel h2{margin:0 0 24px}
.results{padding:58px 0 90px}.result-hero{background:linear-gradient(125deg,#27201e,#181a1d 48%,#202326);border:1px solid #48403e;padding:45px 50px;position:relative;overflow:hidden}.result-hero:after{content:"";position:absolute;right:-100px;top:-140px;width:420px;height:420px;border:54px solid #f04b2e10;border-radius:50%;pointer-events:none}.result-hero .eyebrow{position:relative;z-index:1}.result-hero h1{font-size:clamp(38px,5vw,64px);margin:18px 0 27px;letter-spacing:-.065em;line-height:1.15;position:relative;z-index:1}.score-line{display:flex;align-items:baseline;gap:16px;position:relative;z-index:1}.score-line strong{font:italic 950 clamp(88px,15vw,180px)/.85 ui-sans-serif,sans-serif;letter-spacing:-.12em;color:var(--accent)}.score-line span{font:800 27px ui-monospace,monospace;color:#b4b6b8}.result-stats{display:flex;gap:34px;margin-top:35px;position:relative;z-index:1}.stat{border-left:2px solid #6b6d6e;padding-left:14px}.stat-label{font-size:10px;color:#85888c}.stat strong{display:block;font-size:20px;margin-top:6px}.result-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.result-actions .primary-button,.result-actions .ghost-button{min-width:220px}.review-head{display:flex;align-items:end;justify-content:space-between;border-bottom:1px solid var(--line);padding:52px 0 18px;gap:16px}.review-head h2{margin:0;font-size:31px;letter-spacing:-.05em}.review-head span{color:#8c8f93;font:700 11px ui-monospace,monospace;letter-spacing:.1em}.review-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:18px}.review-item{border:1px solid #3b3e42;background:#1b1d20;padding:15px 17px;display:grid;grid-template-columns:40px minmax(0,1fr) 56px;align-items:center;gap:13px;min-height:92px}.review-item.correct{border-left:3px solid var(--green)}.review-item.wrong{border-left:3px solid var(--accent)}.review-num{font:800 12px ui-monospace,monospace;color:#74777c}.review-detail{min-width:0}.review-detail strong{display:block;font-size:15px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.review-detail small{display:block;margin-top:7px;color:#9da0a4;font-size:11px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.review-item.correct small{color:#9aa398}.review-item.wrong small em{color:#ff8773;font-style:normal}.review-item img{width:56px;height:56px;object-fit:contain;opacity:.82}.review-item.wrong img{opacity:.47}.result-note{margin-top:26px;color:#787b80;font-size:11px;line-height:1.6}
.toast{position:fixed;left:50%;bottom:30px;transform:translate(-50%,20px);background:#f3f1e9;color:#161719;padding:13px 20px;font-weight:750;font-size:13px;box-shadow:0 12px 30px #0008;opacity:0;pointer-events:none;z-index:20;transition:opacity .2s,transform .2s;white-space:nowrap}.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:900px){.intro-grid{grid-template-columns:1fr}.intro{padding-top:50px}.hero-visual{min-height:360px}.hero-track{height:89%;top:5%}.quiz-layout{grid-template-columns:1fr}.track-stage{min-height:450px}.answer-panel{min-height:330px}.difficulty-section{margin-top:55px}}
@media(max-width:640px){.difficulty-card{min-height:104px}.difficulty-card .card-type{margin:0}.answer-panel{min-height:210px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}

/* Every game view occupies one viewport; the answer review uses pages on phones. */
html,body{height:100%;overflow:hidden}
.site-shell{height:100vh;height:100dvh;min-height:0;overflow:hidden}
.site-header{height:clamp(46px,7vh,70px);flex:none}
.site-footer{height:clamp(30px,5vh,42px);min-height:0;flex:none}
main{flex:1;min-height:0}
.intro,.quiz,.results{height:100%;min-height:0}

.intro{padding:clamp(10px,2vh,24px) 0;display:grid;grid-template-rows:minmax(0,1fr) auto;gap:clamp(9px,1.6vh,18px)}
.intro-grid{min-height:0;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(14px,3vw,36px)}
.hero-title{font-size:clamp(50px,min(8vw,11vh),108px);margin:clamp(10px,2vh,20px) 0 clamp(12px,2vh,22px)}
.hero-korean{font-size:clamp(18px,2.4vw,28px);margin:0}
.hero-divider{margin:clamp(14px,2vh,24px) 0 clamp(10px,1.5vh,18px)}
.hero-visual{height:100%;min-height:0}
.difficulty-section{margin:0}
.section-head{padding-bottom:8px}
.section-head h2{font-size:clamp(22px,3vw,34px);margin:0}
.difficulty-grid{gap:9px;margin-top:10px}
.difficulty-card{height:clamp(79px,12vh,116px);min-height:0;padding:9px 14px}
.difficulty-card h3{font-size:clamp(20px,2.4vw,26px);margin:4px 0 0}
.difficulty-card .card-type{margin-top:0}
.start-row{margin-top:9px}
.primary-button,.secondary-button,.ghost-button{min-height:clamp(40px,6vh,52px)}

.quiz{padding:clamp(7px,1.3vh,16px) 0;display:grid;grid-template-rows:auto 3px auto minmax(0,1fr) auto;gap:clamp(5px,1vh,11px)}
.quiz-head h1{font-size:clamp(23px,3vw,38px);margin:3px 0 0}
.quiz-counter strong{font-size:clamp(24px,3vw,34px)}
.quiz-progress{margin:0}
.number-nav{margin:0}
.number-button{height:clamp(29px,4.5vh,40px)}
.quiz-layout{min-height:0;grid-template-columns:minmax(0,1.15fr) minmax(285px,.85fr);gap:10px}
.track-stage{min-height:0}
.answer-panel{min-height:0;padding:clamp(12px,2vw,22px)}
.answer-panel h2{font-size:clamp(18px,2vw,24px);margin:0 0 12px}
.option-list{flex:1;min-height:0;grid-auto-rows:minmax(0,1fr);gap:6px}
.option-list + .answer-spacer{display:none}
.option{height:100%;min-height:0;padding:5px 9px;font-size:clamp(11px,1.2vw,14px);line-height:1.2}
.answer-status{padding-top:8px;margin-top:8px}
.quiz-actions{margin:0}
.quiz-actions .primary-button,.quiz-actions .ghost-button{min-height:clamp(38px,5.5vh,48px)}

.results{padding:clamp(9px,1.5vh,18px) 0;display:grid;grid-template-columns:minmax(250px,.35fr) minmax(0,.65fr);grid-template-rows:auto minmax(0,1fr);gap:12px 20px}
.result-hero{grid-column:1;grid-row:1;padding:clamp(18px,2.5vw,30px)}
.result-hero h1{font-size:clamp(24px,2.8vw,38px);margin:9px 0 14px}
.score-line strong{font-size:clamp(72px,10vw,130px)}
.score-line span{font-size:clamp(17px,2vw,23px)}
.result-stats{margin-top:17px;gap:16px}
.stat strong{font-size:17px;margin-top:4px}
.result-actions{grid-column:1;grid-row:2;display:flex;flex-direction:column;align-self:start;margin:0;gap:8px}
.result-actions .primary-button,.result-actions .ghost-button{min-width:0;width:100%}
.review-head{grid-column:2;grid-row:1;padding:0 0 8px;align-self:end}
.review-head h2{font-size:clamp(21px,2.5vw,29px)}
.review-pager{display:none;align-items:center;gap:7px}
.review-pager button{background:#242629;border:1px solid #55585c;color:#fff;width:31px;height:28px}
.review-pager button:disabled{opacity:.35;cursor:not-allowed}
.review-pager span{font:700 10px ui-monospace,monospace;color:#a5a8ab;white-space:nowrap}
.review-list{grid-column:2;grid-row:2;min-height:0;margin:0;grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:repeat(5,minmax(0,1fr));gap:7px}
.review-item{height:100%;min-height:0;padding:7px 9px;grid-template-columns:25px minmax(0,1fr) 42px;gap:8px}
.review-item img{width:42px;height:42px}
.review-detail strong{font-size:clamp(11px,1.1vw,14px)}
.review-detail small{font-size:10px;margin-top:3px}

@media(max-width:900px){
  .intro-grid{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr)}
  .hero-visual,.track-stage,.answer-panel{min-height:0}
  .difficulty-section{margin:0}
  .quiz-layout{grid-template-columns:minmax(0,1fr) minmax(270px,.9fr)}
}

@media(max-width:699px){
  .site-header,.site-footer,main{width:calc(100% - 24px)}
  .site-header{height:44px}
  .wordmark{font-size:18px}
  .header-right{font-size:9px}
  .site-footer{height:32px;min-height:0;flex-direction:row;justify-content:space-between;align-items:center;font-size:8px;gap:8px}
  body[data-view="quiz"] .site-footer,body[data-view="results"] .site-footer{display:none}
  .intro{padding:8px 0;gap:8px}
  .intro-grid{display:block;min-height:0;align-self:center}
  .hero-visual{display:none}
  .eyebrow{font-size:9px}
  .hero-title{font-size:clamp(42px,12vw,62px);margin:8px 0 9px}
  .hero-korean{font-size:clamp(15px,4.6vw,20px);line-height:1.25}
  .hero-divider{margin:12px 0 9px}
  .hero-rule{font-size:11px}
  .section-head{padding-bottom:5px}
  .section-head h2{font-size:20px}
  .difficulty-grid{grid-template-columns:1fr;gap:5px;margin-top:6px}
  .difficulty-card{height:clamp(45px,8.7vh,54px);min-height:0;padding:7px 12px;display:flex;align-items:center}
  .difficulty-card .card-top{position:absolute;right:12px;top:50%;transform:translateY(-50%)}
  .difficulty-card .card-n{display:none}
  .difficulty-card h3{font-size:17px;margin:0}
  .difficulty-card .card-type{font-size:10px;margin:0 28px 0 auto}
  .start-row{margin-top:7px}
  .start-row .primary-button{width:100%;min-height:42px}

  .quiz{padding:6px 0;gap:5px}
  .quiz-head{align-items:center}
  .quiz-head h1{font-size:20px;margin:2px 0 0}
  .quiz-counter{font-size:10px}
  .quiz-counter strong{font-size:23px}
  .number-nav{grid-template-columns:repeat(5,1fr);gap:4px}
  .number-button{height:clamp(24px,4.8vh,31px);font-size:10px}
  .quiz-layout{grid-template-columns:1fr;grid-template-rows:minmax(0,.9fr) minmax(0,1fr);gap:5px}
  .track-stage{min-height:0}
  .track-stage img{width:88%;height:90%}
  .stage-tag{top:9px;left:10px;font-size:9px}
  .answer-panel{min-height:0;padding:8px 9px}
  .answer-panel h2{font-size:16px;margin:0 0 6px}
  .option-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:4px}
  .option-list-4{grid-template-rows:repeat(2,minmax(0,1fr))}
  .option-list-6{grid-template-rows:repeat(3,minmax(0,1fr))}
  .option{min-height:0;padding:3px 5px;gap:5px;font-size:clamp(10px,2.8vw,12px);line-height:1.12}
  .option-letter{width:19px;height:19px;font-size:9px}
  .input-label{font-size:10px;margin-bottom:5px}
  .answer-input{height:40px;font-size:14px}
  .answer-status{font-size:10px;padding-top:5px;margin-top:5px}
  .quiz-actions{gap:4px;align-items:center;flex-wrap:nowrap}
  .quiz-actions .quit-button{order:0;width:auto;font-size:10px;white-space:nowrap}
  .quiz-actions-right{width:auto;display:flex;gap:4px}
  .quiz-actions-right button{min-width:0;min-height:38px;padding:0 10px;font-size:11px}

  .results{padding:6px 0;grid-template-columns:1fr;grid-template-rows:auto auto auto minmax(0,1fr);gap:6px}
  .result-hero{grid-column:1;grid-row:1;padding:9px 13px;display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-rows:auto auto;gap:3px 8px}
  .result-hero .eyebrow{display:none}
  .result-hero h1{grid-column:1;grid-row:1;align-self:end;font-size:clamp(17px,4.6vw,22px);margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .score-line{grid-column:2;grid-row:1/3;align-self:center;gap:4px}
  .score-line strong{font-size:clamp(54px,15vw,76px)}
  .score-line span{font-size:12px}
  .result-stats{grid-column:1;grid-row:2;margin:4px 0 0;gap:9px}
  .stat{padding-left:6px}
  .stat-label{font-size:8px}
  .stat strong{font-size:11px;margin-top:1px}
  .result-actions{grid-column:1;grid-row:2;display:grid;grid-template-columns:1fr 1fr;gap:5px;margin:0}
  .result-actions .primary-button,.result-actions .ghost-button{width:100%;min-height:39px;padding:0 7px;font-size:11px;gap:5px}
  .review-head{grid-column:1;grid-row:3;padding:0;border:0;align-self:center}
  .review-head h2{font-size:19px}
  .review-pager{display:flex}
  .review-list{grid-column:1;grid-row:4;grid-template-columns:1fr;grid-template-rows:repeat(5,minmax(0,1fr));gap:5px;margin:0}
  .review-list[data-page="1"] .review-item:nth-child(n+6),.review-list[data-page="2"] .review-item:nth-child(-n+5){display:none}
  .review-item{height:100%;min-height:0;padding:3px 7px;grid-template-columns:22px minmax(0,1fr) 34px;gap:5px}
  .review-item img{width:34px;height:34px}
  .review-num{font-size:10px}
  .review-detail strong{font-size:12px}
  .review-detail small{font-size:10px;margin-top:1px}
}

@media(max-width:699px) and (max-height:600px){
  .site-header{height:40px}
  .site-footer{height:26px}
  .hero-title{font-size:42px;margin:5px 0 6px}
  .hero-korean{font-size:15px}
  .hero-divider{margin:8px 0 6px}
  .difficulty-card{height:45px}
  .start-row .primary-button{min-height:38px}
  .quiz-head h1{font-size:18px}
  .number-button{height:24px}
  .quiz-actions-right button{min-height:34px}
  .answer-panel h2,.answer-status{display:none}
  .result-hero{padding:6px 10px}
  .score-line strong{font-size:52px}
  .result-actions .primary-button,.result-actions .ghost-button{min-height:35px}
}

.results{grid-template-columns:minmax(250px,35%) minmax(0,1fr);grid-template-rows:minmax(0,1fr)}
.result-left{min-height:0;display:flex;flex-direction:column;gap:10px}
.result-actions{align-self:stretch;width:100%}
.result-right{min-height:0;display:grid;grid-template-rows:auto minmax(0,1fr);gap:10px}
.review-head,.review-list{grid-column:1}
.review-head{grid-row:1;align-self:end}
.review-list{grid-row:2}

@media(min-width:700px) and (max-width:1000px){
  .review-pager{display:flex}
  .review-list{grid-template-columns:1fr;grid-template-rows:repeat(5,minmax(0,1fr))}
  .review-list[data-page="1"] .review-item:nth-child(n+6),.review-list[data-page="2"] .review-item:nth-child(-n+5){display:none}
}

@media(max-width:699px){
  .results{grid-template-columns:1fr;grid-template-rows:auto minmax(0,1fr);gap:6px}
  .result-left{grid-column:1;grid-row:1;display:grid;grid-template-rows:auto auto;gap:6px}
  .result-right{grid-column:1;grid-row:2;grid-template-rows:auto minmax(0,1fr);gap:6px}
  .review-head{grid-column:1;grid-row:1}
  .review-list{grid-column:1;grid-row:2}
}

@media(min-width:500px) and (max-width:699px) and (max-height:450px){
  .intro-grid{align-self:center}
  .hero-title{font-size:36px;margin:3px 0 5px}
  .hero-korean{font-size:13px}
  .hero-divider{display:none}
  .hero-rule{font-size:10px;margin-top:5px}
  .section-head h2{font-size:17px}
  .difficulty-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:5px}
  .difficulty-card{height:60px;padding:6px 9px;display:block}
  .difficulty-card .card-top{top:7px;right:8px;transform:none}
  .difficulty-card h3{font-size:16px;margin:3px 0 0}
  .difficulty-card .card-type{display:block;font-size:9px;margin:2px 0 0}
  .start-row .primary-button{min-height:33px}
  .quiz{padding:4px 0;gap:4px}
  .quiz-head h1{font-size:17px}
  .number-nav{grid-template-columns:repeat(10,minmax(0,1fr))}
  .number-button{height:25px}
  .quiz-layout{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);grid-template-rows:minmax(0,1fr)}
  .track-stage img{width:88%;height:88%}
  .answer-panel{padding:6px}
  .option{font-size:10px}
  .quiz-actions-right button{min-height:32px}
  .results{grid-template-columns:minmax(170px,34%) minmax(0,1fr);grid-template-rows:minmax(0,1fr);gap:8px}
  .result-left{grid-column:1;grid-row:1;display:flex;flex-direction:column;gap:5px}
  .result-right{grid-column:2;grid-row:1;gap:5px}
  .result-hero{display:block;padding:8px}
  .result-hero h1{font-size:15px}
  .score-line{margin-top:5px}
  .score-line strong{font-size:58px}
  .result-stats{margin-top:5px}
  .result-actions{display:flex;flex-direction:column;gap:4px}
  .result-actions .primary-button,.result-actions .ghost-button{min-height:31px}
  .review-head h2{font-size:16px}
  .review-list{grid-template-columns:1fr;grid-template-rows:repeat(5,minmax(0,1fr))}
  .review-item{padding:3px 7px}
}

/* Trackside finish: clearer hierarchy, stronger selection and a visible circuit on the start screen. */
:root{--accent:#fb5134;--accent-soft:#ff896f;--line:#373b40}
body{background:radial-gradient(ellipse 70% 60% at 78% 10%,#222023 0%,transparent 68%),#101113}
body:before{opacity:.16}
.site-header{position:relative;border-bottom-color:#ffffff26}
.site-header:after{content:"";position:absolute;bottom:-1px;left:0;width:48px;height:2px;background:var(--accent)}
.wordmark{letter-spacing:-.09em}
.wordmark-symbol{filter:drop-shadow(0 0 9px #fb513450)}
.hero-copy-block{position:relative;z-index:1}
.hero-title{letter-spacing:-.09em;text-shadow:0 10px 35px #0007}
.hero-title .outline-text{-webkit-text-stroke:1.5px #f6f5f0}
.hero-rule{display:inline-flex;align-items:center;gap:10px}
.hero-rule:before{content:"";height:5px;width:5px;background:var(--accent);transform:rotate(45deg)}
.hero-visual{background:radial-gradient(circle at 58% 42%,#303338 0%,#1b1d20 52%,#151719 100%);border-color:#60646a}
.hero-visual:after{content:"";position:absolute;inset:15px;border:1px solid #ffffff12;pointer-events:none}
.hero-visual .hero-track{filter:drop-shadow(0 0 16px #ffffff35) drop-shadow(0 0 42px #fb513426)}
.visual-bottom{z-index:2}.visual-bottom span{color:#a8a9ac}
.visual-bottom strong{font-size:clamp(20px,3vw,36px);letter-spacing:-.07em}
.difficulty-card{overflow:hidden;border-color:#45484c;background:linear-gradient(145deg,#222427,#191b1e)}
.difficulty-card:after{content:"";position:absolute;right:-20px;bottom:-42px;width:90px;height:90px;border:1px solid #ffffff0a;transform:rotate(45deg);pointer-events:none}
.difficulty-card.selected{background:linear-gradient(135deg,#342521,#1d2022 70%);box-shadow:inset 0 0 0 1px #fb513425}
.difficulty-card.selected .card-check{box-shadow:0 0 0 4px #fb513428}
.difficulty-card:hover{box-shadow:0 9px 26px #0004}
.primary-button{position:relative;background:var(--accent);box-shadow:0 7px 24px #fb513432;overflow:hidden}
.primary-button:before{content:"";position:absolute;inset:0 auto 0 -80px;width:50px;background:#ffffff22;transform:skewX(-25deg);transition:left .35s}
.primary-button:hover:before{left:110%}
.primary-button .arrow{margin-left:auto}
.ghost-button{border-color:#5a5e62;transition:background .15s,border-color .15s}
.ghost-button:hover{border-color:#dedfdf}
.quiz-head .eyebrow{color:var(--accent-soft)}
.number-button{position:relative;transition:background .15s,border-color .15s,color .15s}
.number-button.answered:not(.current):after{content:"";position:absolute;left:50%;bottom:4px;width:10px;height:2px;transform:translateX(-50%);background:var(--accent)}
.number-button.current{box-shadow:0 0 0 1px #ff886c66,inset 0 -3px #ffffff3d}
.track-stage{background:radial-gradient(ellipse at 50% 48%,#303337 0%,#202226 46%,#17191c 100%);border-color:#51555b}
.track-stage:after{content:"";position:absolute;inset:11px;border:1px solid #ffffff12;pointer-events:none}
.track-stage img{filter:drop-shadow(0 0 8px #ffffff30) drop-shadow(0 0 28px #ffffff1a)}
.stage-tag{background:#17191de8;padding:6px 8px;color:#e8e9e8}
.stage-tag b{font-size:10px}
.answer-panel{border-color:#4a4e53;background:linear-gradient(155deg,#212326,#191b1e 72%)}
.answer-panel h2{font-weight:850}
.option{position:relative;border-color:#4a4e52;background:#25272a;color:#f0f0ee;transition:background .16s,border-color .16s,transform .16s,box-shadow .16s}
.option:hover{transform:translateX(2px);background:#2e3033;border-color:#b3b5b5}
.option.active{background:linear-gradient(100deg,#582c25,#2b2323 68%);border-color:var(--accent);box-shadow:inset 3px 0 var(--accent)}
.option.active:after{content:"✓";color:#fff;font-size:15px;font-weight:900;margin-left:auto}
.option-letter{border-color:#7b7e81;color:#dadbdc}
.option.active .option-letter{border-color:var(--accent);background:var(--accent);color:#fff}
.answer-status{color:#a8aaad}.answer-status strong{color:var(--accent-soft)}
.result-hero{background:linear-gradient(145deg,#3a2825 0%,#202124 40%,#191b1e 100%);border-color:#65504b}
.result-hero:before{content:"";position:absolute;top:0;left:0;width:72px;height:4px;background:var(--accent)}
.result-hero:after{border-color:#fb513416}
.review-item{border-color:#474a4f;background:linear-gradient(100deg,#222427,#1b1d20)}
.review-item.correct{border-left-color:var(--green)}.review-item.wrong{border-left-color:var(--accent)}
.review-item img{filter:drop-shadow(0 0 1px #fff) drop-shadow(0 0 7px #ffffff26);opacity:.9}
.review-item.wrong img{opacity:.68}
.review-detail strong{letter-spacing:-.035em}
.review-pager button{transition:background .15s,border-color .15s}
.review-pager button:not(:disabled):hover{background:var(--accent);border-color:var(--accent)}

@media(min-width:1001px){
  .review-item{grid-template-columns:30px minmax(0,1fr) 78px;gap:10px;padding:10px 14px}
  .review-item img{width:78px;height:78px}
  .review-detail strong{font-size:16px}
}
@media(min-width:700px) and (max-width:1000px){
  .review-item{grid-template-columns:30px minmax(0,1fr) 68px}
  .review-item img{width:68px;height:68px}
}

@media(max-width:699px){
  .intro-grid{display:flex;flex-direction:column;align-items:stretch;align-self:stretch;gap:10px}
  .hero-copy-block{flex:none}
  .hero-visual{display:block;flex:1;min-height:0;height:auto;clip-path:polygon(0 0,100% 0,100% calc(100% - 14px),calc(100% - 14px) 100%,0 100%)}
  .hero-visual:after{inset:8px}
  .hero-track{height:94%;width:72%;top:3%;left:14%;transform:rotate(-7deg)}
  .visual-cross.a{top:16px;left:16px}.visual-cross.b{right:19px;bottom:20px}
  .visual-bottom{left:17px;right:17px;bottom:14px}
  .visual-bottom span{font-size:8px}.visual-bottom strong{font-size:20px}
  .difficulty-card.selected:before{inset:0 auto 0 0;width:3px;height:auto}
  .difficulty-card .card-check{width:18px;height:18px}
  .option.active:after{font-size:12px}
  .review-item{grid-template-columns:24px minmax(0,1fr) clamp(30px,7vh,60px)}
  .review-item img{width:clamp(30px,7vh,60px);height:clamp(30px,7vh,60px)}
  .review-detail strong{font-size:clamp(11px,1.6vh,14px)}
}
@media(max-width:699px) and (max-height:620px){
  .intro-grid{display:block;align-self:center}
  .hero-visual{display:none}
}
@media(min-width:500px) and (max-width:699px) and (max-height:450px){
  .intro-grid{display:block;align-self:center}
}

/* A quiet frame and full-size navigation controls. */
.site-header{justify-content:flex-start}
.hero-title{margin-top:0}
.quiz-head-side{display:flex;align-items:center;gap:clamp(9px,1.5vw,18px);flex:none}
.quiz-head .quit-button{display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:0 12px;border:1px solid #55595f;color:#c5c7c9;text-decoration:none;white-space:nowrap;font-size:12px;transition:background .15s,border-color .15s}
.quiz-head .quit-button:hover{background:#2b2d30;border-color:#aeb0b2;color:#fff}
.quiz-actions{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);gap:10px}
.quiz-actions .ghost-button,.quiz-actions .primary-button{width:100%;min-width:0;min-height:clamp(48px,6.2vh,60px);padding:0 20px;font-size:15px}
.quiz-actions .ghost-button{justify-content:center}
.quiz-actions .primary-button{justify-content:space-between}
.result-hero h1{margin-top:0}

@media(max-width:699px){
  .quiz-head{gap:8px}
  .quiz-head-side{gap:7px}
  .quiz-head .quit-button{min-height:32px;padding:0 8px;font-size:10px}
  .quiz-actions{grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);gap:6px}
  .quiz-actions .ghost-button,.quiz-actions .primary-button{min-height:48px;padding:0 13px;font-size:13px}
}
@media(max-width:699px) and (max-height:600px){
  .quiz-actions .ghost-button,.quiz-actions .primary-button{min-height:44px}
}