@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css');
:root{--navy:#1e2761;--ink:#101831;--muted:#586780;--line:#dce3ed;--paper:#f5f7fb;--gold:#ffcf48;--teal:#117365;--white:#fff;--mono:ui-monospace,SFMono-Regular,Consolas,'Liberation Mono',monospace;--sans:Pretendard,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--paper);line-height:1.75}button,input,textarea,select{font:inherit}button,a,input,select,textarea{touch-action:manipulation}a{color:var(--navy);text-underline-offset:4px}button,.button,.file-button{border:1px solid #c8d2e0;border-radius:8px;background:#fff;color:var(--ink);padding:9px 15px;cursor:pointer;text-decoration:none;font-size:14px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:10px;line-height:1.5}button:hover,.button:hover,.file-button:hover{background:#edf2fa;border-color:#8c9bb6}button:disabled{opacity:.5;cursor:not-allowed}.primary,.button.primary{background:var(--navy);border-color:var(--navy);color:#fff}.primary:hover{background:#303f89}:focus-visible{outline:3px solid #d79400;outline-offset:3px}h1,h2,h3,h4,p{margin-top:0}h1,h2,h3{line-height:1.3;letter-spacing:-.035em}h1{font-size:clamp(34px,4.8vw,64px)}h2{font-size:29px;margin-bottom:20px}h3{font-size:21px}p{margin-bottom:18px}pre,code{font-family:var(--mono)}pre{overflow:auto;white-space:pre;line-height:1.75;font-size:13px}label{display:block;font-size:14px;font-weight:600}input:not([type=checkbox]):not([type=radio]):not([type=file]),textarea,select{display:block;width:100%;border:1px solid #b9c5d8;background:#fff;border-radius:7px;padding:10px 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var(--mono);border-radius:12px 12px 0 0}.code-top span:first-child{color:#7a8caa}.code-art pre{padding:24px 25px 38px;margin:0;font-size:13px}.dim{color:#a2b1c8}.gold{color:var(--gold)}.mint{color:#93dfc1}.art-output{padding:15px 24px;border-top:1px solid #38445a;color:#aabacf;font-size:12px;display:flex;align-items:center;gap:9px}.status-dot{width:7px;height:7px;background:#70d7b0;border-radius:50%}.art-card{background:#fff;color:var(--ink);padding:15px 22px;position:absolute;right:22px;bottom:-54px;border:1px solid var(--line);border-radius:10px;box-shadow:0 12px 28px #1c2b4515;transform:rotate(1deg)}.art-card span{font:10px var(--mono);letter-spacing:.12em;color:var(--teal)}.art-card b{display:block;font-size:16px;margin:4px 0}.art-card small{color:var(--muted)}.section{margin:0 auto 40px;padding:36px;background:#fff;border:1px solid var(--line);border-radius:14px}.home-hero+.section,main>.record{max-width:1200px}.section-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}.section-head h2{margin:0}.pill{display:inline-block;padding:6px 12px;border-radius:30px;background:#e9f2ef;color:#176c5f;font-size:12px;white-space:nowrap}.prep-card{display:flex;align-items:center;gap:24px;border:1px solid var(--line);background:#f8faff;border-radius:10px;text-decoration:none;padding:22px;margin-bottom:22px}.number{font:600 28px var(--mono);color:#9aa7bb}.prep-card h3{margin:0 0 5px;font-size:18px}.prep-card p{margin:0;color:var(--muted);font-size:14px}.prep-card>span:last-child{margin-left:auto;font-size:13px;font-weight:700}.course-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.course-card{padding:28px;border:1px solid var(--line);border-radius:12px;text-decoration:none;transition:transform .2s,box-shadow 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