:root{--bg:#070708;--bg-2:#101012;--card:#141416;--ink:#f7f7f5;--soft:#a1a1a6;--line:#2c2c30;--yellow:#ffe14a;--yellow-deep:#f0cc00;--good:#173526;--good-ink:#b6f5c4;--bad:#3a1717;--bad-ink:#ffb4b4;--shadow:0 18px 50px rgba(0,0,0,0.35);--sans:var(--font-sans),var(--font-kr),"Apple SD Gothic Neo","Noto Sans KR",sans-serif;--display:var(--font-sans),"Apple SD Gothic Neo",sans-serif;color-scheme:dark}*{box-sizing:border-box}body,html{margin:0;padding:0}body{min-height:100dvh;background:radial-gradient(520px 280px at 100% 0,rgba(255,225,74,.16),transparent 60%),var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.5}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.app{width:min(560px,100%);margin:0 auto;min-height:100dvh;padding:18px 16px calc(92px + env(safe-area-inset-bottom))}.app.wide{width:min(1040px,100%)}.app.focus{padding-bottom:calc(18px + env(safe-area-inset-bottom))}.brand{display:flex;gap:12px;align-items:center}.brand strong{display:block;letter-spacing:-.03em;font-size:15px;font-weight:700}.brand span{color:var(--soft);font-size:13px}.mark{width:42px;height:46px;display:grid;place-items:center;background:var(--yellow);color:#111;font-weight:800;font-size:13px;letter-spacing:-.04em;-webkit-clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);filter:drop-shadow(0 0 16px rgba(255,225,74,.55))}.nav{position:fixed;left:50%;bottom:0;transform:translateX(-50%);width:min(560px,100%);display:grid;grid-template-columns:repeat(4,1fr);grid-gap:4px;gap:4px;padding:8px 10px calc(8px + env(safe-area-inset-bottom));background:rgba(7,7,8,.92);border-top:1px solid var(--line);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:20}.nav a{text-align:center;font-size:11px;color:var(--soft);padding:6px 2px;border-radius:12px}.nav a strong{display:block;font-size:13px;font-weight:700;color:var(--ink)}.nav a.on{background:#1c1c16}.nav a.on,.nav a.on strong{color:var(--yellow)}.h1{font-family:var(--display);font-size:40px;line-height:.98;letter-spacing:-.045em;margin:8px 0}.h1,.kicker{font-weight:700}.kicker{color:var(--yellow);font-size:12px;letter-spacing:.16em;text-transform:uppercase;margin:0}.muted{color:var(--soft)}.err{background:var(--bad);color:var(--bad-ink);border-radius:14px;padding:10px 12px;font-size:14px}.books{display:grid;grid-gap:12px;gap:12px;margin:18px 0}.book{border-radius:22px;padding:20px;min-height:168px;display:flex;flex-direction:column;justify-content:space-between;background:var(--card);border:1px solid var(--line);position:relative;overflow:hidden}.book.one{box-shadow:inset 0 0 0 1px rgba(255,225,74,.18)}.book.two{background:#0c0c0e}.book .idx{font-size:42px;letter-spacing:-.05em;line-height:1;font-weight:700}.book 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.num{width:28px;height:28px;flex:none;border-radius:50%;border:1.5px solid;display:grid;place-items:center;font-size:13px}.choice.on{background:var(--yellow);color:#14120a;border-color:var(--yellow);font-weight:650}.choice.good{background:var(--good);border-color:#2d6a4a;color:var(--good-ink)}.choice.bad{background:var(--bad);border-color:#6a3030;color:var(--bad-ink)}.player{background:#0c0c0e;color:var(--ink);border:1px solid var(--line);border-radius:22px;padding:16px;margin:14px 0}.player .play{width:64px;height:64px;border-radius:50%;border:0;background:var(--yellow);color:#14120a;font-size:20px;font-weight:800}.player .trackline{height:6px;border-radius:99px;background:#2a2a2e;margin-top:12px;overflow:hidden}.player .trackline span{display:block;height:100%;background:var(--yellow);width:0}.tools{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.sheet{display:grid;grid-template-columns:repeat(5,1fr);grid-gap:8px;gap:8px}.qdot,.qnums button{width:40px;height:40px;border-radius:50%;border:1.5px solid var(--line);background:var(--card);color:var(--ink);display:grid;place-items:center}.qdot.done,.qnums button.done{background:var(--yellow);color:#14120a;border-color:var(--yellow);font-weight:700}.qdot.on,.qnums button.on{outline:2px solid var(--yellow)}.qdot.flag{box-shadow:inset 0 0 0 3px var(--yellow)}.qnums{display:flex;gap:6px;overflow-x:auto;padding-bottom:8px}.qnums button{flex:none}.modal{position:fixed;inset:0;background:rgba(0,0,0,.72);display:grid;align-items:end;z-index:30;padding:12px}.modal .panel{width:min(560px,100%);margin:0 auto;background:#161618;border:1px solid var(--line);border-radius:22px;padding:16px;max-height:min(80dvh,720px);overflow:auto}.field,input[type=number],input[type=search],input[type=text],select,textarea{width:100%;border:1px solid var(--line);background:#0c0c0e;border-radius:12px;padding:10px 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