:root{--bg:#f6f1e7;--paper:#fffdf8;--ink:#1c2233;--mute:#5b6275;--line:#e1d9c8;--navy:#1f2a44;--accent:#c9532a;--accent-ink:#a8401d;--ok:#2f7d5b;--del:#b3362c;--ins:#1d6b4a;--tint:#efe8d9;--r:14px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 "Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,"Segoe UI","Apple SD Gothic Neo",sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit}
figure{margin:0}
:lang(ko){word-break:keep-all;overflow-wrap:break-word}
.brand,.btn,.lang,.tag{white-space:nowrap}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:8px;background:var(--navy);color:#fff;padding:8px 12px;border-radius:8px;z-index:20}
.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:6px}
h1,h2,h3{line-height:1.2;margin:0;letter-spacing:-.02em}
h1,h2{font-family:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Noto Serif KR","Apple SD Gothic Neo",serif;font-weight:700}
h1{font-size:clamp(2.3rem,5.4vw,4rem);margin:14px 0 20px}
h1 em{font-style:italic;color:var(--accent)}
h2{font-size:clamp(1.7rem,3.4vw,2.5rem);max-width:22ch;margin-bottom:28px}
h3{font-size:1.1rem;margin-bottom:8px}
p{margin:0 0 14px}
code,.mono,pre{font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace}
code{font-size:.85em;background:rgba(31,42,68,.07);padding:2px 6px;border-radius:6px}

.top{position:sticky;top:0;z-index:10;background:rgba(246,241,231,.97);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.bar-row{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;text-decoration:none;letter-spacing:-.01em}
.mark{display:grid;place-items:center;width:28px;height:28px;border-radius:8px;background:var(--navy);color:var(--bg);font:700 17px Georgia,serif;box-shadow:inset 0 -3px 0 var(--accent)}
.top nav{display:flex;gap:22px;margin-left:12px;font-size:.93rem}
.top nav a{text-decoration:none;color:var(--mute)}
.top nav a:hover{color:var(--ink)}
.actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.lang{font-size:.88rem;color:var(--mute);text-decoration:none;padding:6px 10px;border:1px solid var(--line);border-radius:999px}
.lang:hover{color:var(--ink);border-color:var(--ink)}

.btn{display:inline-flex;align-items:center;gap:6px;background:var(--navy);color:#fff;text-decoration:none;font-weight:600;padding:13px 22px;border-radius:999px;border:1px solid var(--navy);transition:transform .15s,background .15s}
.btn:hover{background:#2b3a5e;transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--ink);border-color:#b9ae96}
.btn.ghost:hover{background:var(--paper);border-color:var(--ink)}
.btn.small{padding:8px 16px;font-size:.9rem}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 14px}

.hero{padding:72px 0 40px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.85rem;font-weight:600;color:var(--accent-ink);background:rgba(201,83,42,.1);padding:6px 12px;border-radius:999px;margin:0}
.dot{width:7px;height:7px;border-radius:50%;background:var(--accent)}
.lede{font-size:1.15rem;color:var(--mute);max-width:56ch}
.lede.narrow{max-width:70ch}
.fine{font-size:.88rem;color:var(--mute)}
.fine a,.links a{color:var(--accent-ink)}
.links{font-size:.92rem}

.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:0 1px 0 rgba(31,42,68,.04),0 18px 40px -26px rgba(31,42,68,.35)}
.card.plain{box-shadow:none}
.card p:last-child{margin-bottom:0}
.idx{font:600 .8rem ui-monospace,Menlo,monospace;color:var(--accent-ink)}
.diff figcaption{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;font-size:.78rem;color:var(--mute)}
.tag{background:var(--tint);padding:3px 10px;border-radius:999px;font-weight:600}
.lbl{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--mute);margin:12px 0 4px;font-weight:600}
.sent{font-family:"Iowan Old Style",Georgia,serif;font-size:1.05rem;line-height:1.6;margin:0 0 6px}
del{color:var(--del);background:rgba(179,54,44,.1);text-decoration-thickness:1.5px;padding:0 2px;border-radius:3px}
ins{color:var(--ins);background:rgba(29,107,74,.12);text-decoration:none;padding:0 2px;border-radius:3px}
.after b{background:rgba(31,42,68,.1);border-radius:3px;padding:0 3px;font-weight:600}
.ok{margin:14px 0 0;padding-top:12px;border-top:1px dashed var(--line);font-size:.85rem;color:var(--ok);font-weight:600}

.stats{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin:56px 0 0;padding:0;border:1px solid var(--line);border-radius:var(--r);background:var(--paper)}
.stats li{padding:22px 24px;border-left:1px solid var(--line)}
.stats li:first-child{border-left:0}
.stats strong{display:block;font:700 2.2rem/1.1 Georgia,serif;color:var(--navy)}
.stats span{font-size:.88rem;color:var(--mute)}

.sec{padding:88px 0}
.tint{background:var(--tint)}
.kicker{font-size:.8rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-ink);margin:0 0 12px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.mt{margin-top:28px}
.files{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:8px}
.files li{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:9px 14px;font-size:.85rem}
.code{padding:0;overflow:hidden}
.code .head{margin:0;padding:12px 18px;border-bottom:1px solid var(--line);background:var(--tint);font-size:.82rem}
.code ul{list-style:none;margin:0;padding:6px 0}
.code li{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;padding:14px 18px;border-top:1px solid var(--line);align-items:center}
.code li:first-child{border-top:0}
.code li code{grid-column:2;justify-self:start;color:var(--mute)}
.pill{font:700 .7rem ui-monospace,Menlo,monospace;text-transform:uppercase;padding:3px 9px;border-radius:999px}
.pill.changed{background:rgba(201,83,42,.14);color:var(--accent-ink)}
.pill.kept{background:rgba(47,125,91,.15);color:var(--ok)}

.steps{counter-reset:s;list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.steps li{counter-increment:s;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:24px;position:relative}
.steps li::before{content:counter(s);display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--navy);color:#fff;font-weight:700;font-size:.85rem;margin-bottom:14px}
.steps p{color:var(--mute);margin:0}

.scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--paper)}
table{width:100%;border-collapse:collapse;font-size:.95rem}
th,td{text-align:left;padding:14px 18px;border-top:1px solid var(--line);vertical-align:top}
thead th{border-top:0;background:var(--tint);font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:var(--mute)}
tbody th{font-weight:600;white-space:nowrap}
.claudetbl tbody th{white-space:normal;min-width:130px}
.claudetbl td{min-width:240px}
.num{font-variant-numeric:tabular-nums}
.fieldtbl td:last-child{display:flex;align-items:center;gap:12px}
.fieldtbl .num:last-child{min-width:3.2em;text-align:right}
.bar{flex:1;min-width:90px;height:8px;background:var(--tint);border-radius:99px;overflow:hidden}
.bar span{display:block;height:100%;background:linear-gradient(90deg,var(--navy),var(--accent));border-radius:99px}

.mini{padding-left:20px;margin:18px 0}
.mini li{margin-bottom:6px}
.term{background:#161c2c;color:#e9e4d6;border-radius:var(--r);overflow:hidden;box-shadow:0 24px 50px -28px rgba(0,0,0,.6)}
.term-bar{display:flex;gap:7px;padding:12px 16px;background:#1f2740}
.term-bar i{width:11px;height:11px;border-radius:50%;background:#46506e}
.term pre{margin:0;padding:20px;font-size:.82rem;line-height:1.7;overflow-x:auto}
.term code{background:none;padding:0;font-size:inherit}
.term .c{color:#e8825c}
.term .g{color:#8fd1b0}

.faq details{background:var(--paper);border:1px solid var(--line);border-radius:12px;margin-bottom:10px;padding:0 20px}
.faq summary{cursor:pointer;font-weight:600;padding:18px 0;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent-ink);font-size:1.3rem;line-height:1}
.faq details[open] summary::after{content:"−"}
.faq details p{color:var(--mute)}

.facts{margin:0;display:grid;gap:0;background:var(--paper);border:1px solid var(--line);border-radius:var(--r)}
.facts div{display:grid;grid-template-columns:180px 1fr;gap:16px;padding:16px 22px;border-top:1px solid var(--line)}
.facts div:first-child{border-top:0}
.facts dt{color:var(--mute);font-size:.9rem}
.facts dd{margin:0;font-weight:500;overflow-wrap:anywhere}
.facts a{color:var(--accent-ink)}

.final{background:var(--navy);color:var(--bg);padding:84px 0;text-align:center}
.final h2{margin:0 auto 12px;max-width:none}
.final p{color:#c9c3b2}
.final .btn{background:var(--bg);color:var(--navy);border-color:var(--bg);margin-top:10px}
.final .btn:hover{background:#fff}

footer{background:#151b2d;color:#aaa592;padding:48px 0;font-size:.88rem}
footer p{margin:0 0 6px}
footer a{color:#e9e4d6}
footer .brand{color:#f6f1e7;margin-bottom:12px}
.foot{display:grid;grid-template-columns:1.2fr 1fr;gap:40px}
.disc{max-width:52ch}

@media(max-width:900px){
  .top nav{display:none}
  .bar-row{gap:12px}
  .btn.small{padding:8px 12px;font-size:.84rem}
  .hero-grid,.two,.foot{grid-template-columns:1fr;gap:32px}
  .grid3,.steps{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .stats li:nth-child(3){border-left:0}
  .stats li:nth-child(n+3){border-top:1px solid var(--line)}
  .sec{padding:64px 0}
  .hero{padding-top:44px}
  .facts div{grid-template-columns:1fr;gap:2px}
  .claudetbl thead{display:none}
  .claudetbl tr,.claudetbl th,.claudetbl td{display:block}
  .claudetbl td{min-width:0;padding:4px 18px}
  .claudetbl tbody th{padding:16px 18px 4px;font-size:1.02rem}
  .claudetbl tbody tr{padding-bottom:12px;border-top:1px solid var(--line)}
  .claudetbl tbody tr:first-child{border-top:0}
  .claudetbl th,.claudetbl td{border-top:0}
  .claudetbl td:last-child{color:var(--accent-ink);font-weight:600}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}