/* 힉스필드 안내 사이트 — 힉스필드 API 화면의 차콜 블랙 + 네온 라임 팔레트 */
:root{
  color-scheme:dark;
  --ink:#131416;
  --surface:#1A1B1D;
  --surface2:#2B2C2E;
  --line:#2F3033;
  --text:#F4F4F5;
  --muted:#A3A4A8;
  --lime:#D1FE17;
  --lime-hi:#E4FF66;
  --pink:#FF337C;
  --accent:#D1FE17;
  --accent-hover:#E4FF66;
  --accent-ink:#131416;
  --link:#D1FE17;
  --link-deep:#D1FE17;
  --serif:"Noto Serif KR","Noto Serif CJK KR","Nanum Myeongjo",serif;
  --sans:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic","Noto Sans KR",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Noto Sans Mono CJK KR",monospace;
  --gutter:clamp(16px,4.5vw,32px);
  --read:42rem;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:20px}
body{margin:0;background:var(--ink);color:var(--text);font-family:var(--sans);font-size:17px;line-height:1.85;word-break:keep-all;overflow-wrap:break-word;padding-bottom:112px;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:var(--link);text-underline-offset:.2em;text-decoration-thickness:1px}
a:hover{color:var(--accent-hover)}
:focus-visible{outline:3px solid var(--link);outline-offset:3px;border-radius:3px}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:var(--accent-ink);padding:10px 16px;z-index:100;border-radius:6px}
.skip:focus{left:8px}
h1,h2,h3{font-family:var(--serif);font-weight:700;line-height:1.35;letter-spacing:-.012em;margin:0}
p{margin:0 0 1.15em}
ul,ol{padding-left:1.25em;margin:0 0 1.2em}
li{margin:.3em 0}
strong{font-weight:700;color:#fff}
hr{border:0;border-top:1px solid var(--line);margin:2.5em 0}

/* disclosure strip */
.strip{background:var(--surface2);color:var(--muted);font-size:13px;line-height:1.6;padding:9px var(--gutter);text-align:center}
.strip a{color:var(--text)}

/* header */
.head{display:flex;align-items:center;gap:20px;padding:14px var(--gutter);max-width:1240px;margin:0 auto}
.brand{font-family:var(--serif);font-weight:900;font-size:1.45rem;letter-spacing:-.02em;color:var(--accent);text-decoration:none;flex:none}
.brand:hover{color:var(--accent-hover)}
.nav{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;flex:1;margin:0;padding:0;list-style:none}
.nav::-webkit-scrollbar{display:none}
.nav li{margin:0;flex:none}
.nav a{display:block;padding:7px 12px;color:var(--text);text-decoration:none;font-size:15px;font-weight:500;border-radius:999px;white-space:nowrap}
.nav a:hover,.nav a[aria-current]{background:var(--surface2);color:#fff}
.hsearch{display:none;flex:none}
.hsearch input{background:var(--surface);border:1px solid var(--line);color:var(--text);border-radius:999px;padding:7px 14px;font:inherit;font-size:14px;width:11rem}
.hsearch input::placeholder{color:var(--muted)}
@media(min-width:900px){.hsearch{display:block}}

/* hero — the one orchestrated moment: letterbox opens like a film */
.hero{position:relative;isolation:isolate;min-height:min(84vh,760px);display:flex;align-items:flex-end;overflow:hidden;background:linear-gradient(135deg,#262729,#131416 62%,#2A2208)}
.hero__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.hero__shade{position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(19,20,22,.2) 0%,rgba(19,20,22,.15) 35%,rgba(19,20,22,.92) 100%)}
.hero__bar{position:absolute;left:0;right:0;height:7%;background:var(--ink);z-index:2;animation:bar 1.5s cubic-bezier(.75,0,.2,1) both}
.hero__bar--t{top:0}
.hero__bar--b{bottom:0;animation-name:barb}
@keyframes bar{from{height:50.5%}to{height:7%}}
@keyframes barb{from{height:50.5%}to{height:7%}}
.hero__in{position:relative;z-index:3;width:100%;max-width:1240px;margin:0 auto;padding:0 var(--gutter) calc(7% + 40px);animation:rise .9s ease-out 1.05s both}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.hero h1{font-size:clamp(2.1rem,6.2vw,4.4rem);line-height:1.18;max-width:14em;text-wrap:balance;text-shadow:0 2px 24px rgba(0,0,0,.55)}
.hero__lead{max-width:34rem;font-size:clamp(1rem,2.2vw,1.18rem);color:#E1E2E4;margin:18px 0 26px;text-shadow:0 1px 14px rgba(0,0,0,.6)}
.hero__row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.hform{display:flex;gap:0;flex:1 1 280px;max-width:420px}
.hform input{flex:1;min-width:0;background:rgba(19,20,22,.8);border:1px solid var(--line);border-right:0;color:var(--text);padding:13px 16px;font:inherit;border-radius:999px 0 0 999px;backdrop-filter:blur(6px)}
.hform button{background:var(--surface2);border:1px solid var(--line);color:var(--text);padding:0 20px;border-radius:0 999px 999px 0;font:inherit;font-weight:600;cursor:pointer}
.hform button:hover{background:var(--link-deep);color:var(--accent-ink)}
@media(prefers-reduced-motion:reduce){
  .hero__bar,.hero__in{animation:none}
  html{scroll-behavior:auto}
}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:var(--accent);color:var(--accent-ink);font-weight:800;text-decoration:none;padding:14px 26px;border-radius:999px;font-size:1.02rem;line-height:1.3;box-shadow:0 6px 22px rgba(208,253,23,.22);transition:background .15s,transform .15s}
.btn:hover{background:var(--accent-hover);color:var(--accent-ink);transform:translateY(-1px)}
.btn--ghost{background:transparent;color:var(--text);border:1px solid var(--line);box-shadow:none;font-weight:600}
.btn--ghost:hover{background:var(--surface2);color:#fff}
.btn svg{flex:none}

/* floating CTA — follows the reader */
.fab{position:fixed;z-index:60;left:50%;bottom:max(14px,env(safe-area-inset-bottom));transform:translateX(-50%);width:min(92vw,440px);min-height:66px;display:flex;align-items:center;gap:14px;padding:10px 26px 10px 12px;border-radius:999px;background:var(--accent);color:var(--accent-ink);text-decoration:none;box-shadow:0 14px 36px rgba(0,0,0,.55),0 0 0 1px rgba(255,255,255,.14) inset,0 0 0 6px rgba(208,253,23,.16);transition:background .15s,box-shadow .15s}
.fab:hover{background:var(--accent-hover);color:var(--accent-ink)}
.fab__ico{flex:none;width:46px;height:46px;border-radius:50%;background:var(--ink);display:grid;place-items:center}
.fab__t{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.fab__t strong{color:var(--accent-ink);font-size:1.22rem;font-weight:900;letter-spacing:-.01em}
.fab__t small{font-size:.82rem;font-weight:600;opacity:.82}

/* sections */
.wrap{max-width:1240px;margin:0 auto;padding:0 var(--gutter)}
.sec{padding:clamp(48px,8vw,92px) 0 0}
.sec>.wrap>h2,.sec h2.t{font-size:clamp(1.55rem,3.4vw,2.2rem);margin-bottom:10px}
.sec__sub{color:var(--muted);max-width:40rem;margin-bottom:32px}

/* learning path */
.path{list-style:none;padding:0;margin:0;display:grid;gap:0;counter-reset:ch}
.path li{margin:0;border-top:1px solid var(--line)}
.path li:last-child{border-bottom:1px solid var(--line)}
.path a{display:grid;grid-template-columns:3.2rem 1fr auto;gap:6px 18px;align-items:baseline;padding:20px 4px;text-decoration:none;color:var(--text)}
.path a:hover{background:var(--surface)}
.path__n{font-family:var(--serif);font-weight:900;font-size:2rem;line-height:1;color:var(--accent);grid-row:span 2}
.path__t{font-family:var(--serif);font-weight:700;font-size:1.25rem}
.path__c{color:var(--muted);font-size:.9rem;white-space:nowrap}
.path__d{grid-column:2/4;color:var(--muted);font-size:.96rem;line-height:1.6}
@media(max-width:560px){.path a{grid-template-columns:2.6rem 1fr}.path__c{grid-column:2}.path__d{grid-column:2}}

/* ranked list (popular docs) */
.rank{list-style:none;padding:0;margin:0;display:grid;gap:0 48px}
@media(min-width:820px){.rank{grid-template-columns:1fr 1fr}}
.rank li{margin:0;border-top:1px solid var(--line)}
.rank a{display:block;padding:18px 2px;text-decoration:none;color:var(--text)}
.rank a:hover .rank__t{color:var(--link)}
.rank__t{display:block;font-family:var(--serif);font-weight:700;font-size:1.12rem;line-height:1.45}
.rank__d{display:block;color:var(--muted);font-size:.92rem;line-height:1.6;margin-top:4px}

/* chapter index */
.chap{margin-top:44px}
.chap h3{font-size:1.3rem;margin-bottom:6px}
.chap h3 a{color:var(--text);text-decoration:none}
.chap h3 a:hover{color:var(--accent)}
.chap p{color:var(--muted);font-size:.95rem;margin-bottom:12px}
.chap ul{list-style:none;padding:0;margin:0;columns:1;column-gap:48px}
@media(min-width:820px){.chap ul{columns:2}}
.chap li{margin:0;break-inside:avoid;border-top:1px solid var(--line)}
.chap li a{display:block;padding:9px 2px;color:var(--text);text-decoration:none;font-size:.98rem;line-height:1.55}
.chap li a:hover{color:var(--link)}

/* faq */
.faq details{border-top:1px solid var(--line);padding:0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:16px 36px 16px 2px;font-weight:600;position:relative;line-height:1.55}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:12px;font-size:1.5rem;font-weight:400;color:var(--accent);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{color:#D4D5D8;padding:0 2px 18px;margin:0;font-size:.98rem}

/* doc page */
.crumb{max-width:1120px;margin:0 auto;padding:18px var(--gutter) 0;font-size:.86rem;color:var(--muted)}
.crumb ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:4px 8px}
.crumb li{margin:0}
.crumb li+li::before{content:"/";margin-right:8px;color:var(--line)}
.crumb a{color:var(--muted)}
.dhead{max-width:1120px;margin:0 auto;padding:22px var(--gutter) 0}
.dhead h1{font-size:clamp(1.8rem,4.6vw,2.9rem);max-width:17em;text-wrap:balance}
.dmeta{color:var(--muted);font-size:.88rem;margin:14px 0 0}
.doc{display:grid;grid-template-columns:minmax(0,1fr);gap:0 56px;max-width:1120px;margin:0 auto;padding:0 var(--gutter)}
@media(min-width:1100px){.doc{grid-template-columns:minmax(0,var(--read)) 15rem;justify-content:space-between}}
.disclose{margin:24px 0;padding:14px 16px;background:var(--surface);border:1px solid var(--line);border-radius:8px;font-size:.88rem;line-height:1.7;color:var(--muted)}
.disclose a{color:var(--link)}
.fig{margin:26px 0 8px}
.fig img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:4px;background:var(--surface)}
.fig figcaption{font-size:.84rem;color:var(--muted);margin-top:8px;line-height:1.6}
.tldr{margin:28px 0;padding:18px 20px;background:var(--surface);border-left:3px solid var(--link);border-radius:0 8px 8px 0}
.tldr h2{font-size:1.02rem;font-family:var(--sans);font-weight:800;margin-bottom:8px;color:#fff}
.tldr ul{margin:0;padding-left:1.1em}
.tldr li{margin:.35em 0;font-size:.98rem;line-height:1.7}
.toc-m{margin:22px 0;border:1px solid var(--line);border-radius:8px}
.toc-m summary{cursor:pointer;padding:12px 16px;font-weight:700}
.toc-m ol{margin:0;padding:0 16px 14px 36px;font-size:.95rem}
@media(min-width:1100px){.toc-m{display:none}}
.toc{display:none}
@media(min-width:1100px){.toc{display:block;position:sticky;top:24px;align-self:start;margin-top:26px;font-size:.88rem;line-height:1.55;max-height:calc(100vh - 140px);overflow:auto}
.toc p{font-weight:800;color:#fff;margin:0 0 10px}
.toc ol{list-style:none;margin:0;padding:0;border-left:1px solid var(--line)}
.toc li{margin:0}
.toc a{display:block;padding:6px 0 6px 14px;margin-left:-1px;border-left:2px solid transparent;color:var(--muted);text-decoration:none}
.toc a:hover{color:var(--text)}
.toc a.on{color:var(--accent);border-left-color:var(--accent)}}

/* prose */
.prose{padding-bottom:12px}
.prose h2{font-size:clamp(1.4rem,3vw,1.75rem);margin:2.4em 0 .7em}
.prose h3{font-size:1.2rem;margin:1.9em 0 .6em}
.prose a{font-weight:500}
.prose blockquote{position:relative;margin:1.4em 0;padding:16px 18px 16px 18px;background:var(--surface);border-left:3px solid var(--link);border-radius:0 8px 8px 0;font-family:var(--mono);font-size:.92rem;line-height:1.75;color:#E4E5E7;word-break:normal;overflow-wrap:anywhere}
.prose blockquote p{margin:0}
.prose blockquote em{font-style:normal;color:var(--link)}
.copy{position:absolute;top:8px;right:8px;background:var(--surface2);color:var(--text);border:1px solid var(--line);border-radius:999px;font:600 12px/1 var(--sans);padding:6px 11px;cursor:pointer}
.copy:hover{background:var(--link-deep);color:var(--accent-ink)}
.prose blockquote:has(.copy) p{padding-right:3.6rem}
.tablewrap{overflow-x:auto;margin:1.4em 0;-webkit-overflow-scrolling:touch}
.prose table{border-collapse:collapse;width:100%;min-width:34rem;font-size:.92rem;line-height:1.6}
.prose th{background:var(--surface2);text-align:left;font-weight:700;color:#fff;white-space:nowrap}
.prose th,.prose td{padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.prose td:first-child{font-weight:600;color:#fff}
.note{margin:1.6em 0;padding:14px 18px;background:rgba(255,62,157,.09);border-left:3px solid var(--pink);border-radius:0 8px 8px 0;font-size:.95rem;line-height:1.75}
.note p{margin:0}
.ctabox{margin:44px 0 18px;padding:26px 24px;background:linear-gradient(135deg,#262729,#1B1C1F 70%);border:1px solid var(--line);border-radius:10px}
.ctabox h2{font-size:1.35rem;margin:0 0 8px}
.ctabox p{color:#D4D5D8;font-size:.96rem;margin:0 0 18px}
.ctabox small{display:block;margin-top:12px;color:var(--muted);font-size:.8rem;line-height:1.6}
.dsec{margin-top:44px}
.dsec>h2{font-size:1.4rem;margin-bottom:12px}
.srcs{padding-left:1.1em;font-size:.92rem;line-height:1.7}
.srcs a{color:var(--link)}
.rel{list-style:none;padding:0;margin:0}
.rel li{margin:0;border-top:1px solid var(--line)}
.rel li:last-child{border-bottom:1px solid var(--line)}
.rel a{display:block;padding:14px 2px;text-decoration:none;color:var(--text)}
.rel a:hover strong{color:var(--link)}
.rel strong{display:block;font-family:var(--serif);font-size:1.05rem;line-height:1.5}
.rel span{display:block;color:var(--muted);font-size:.9rem;line-height:1.6}
.pn{display:grid;gap:12px;margin-top:36px}
@media(min-width:640px){.pn{grid-template-columns:1fr 1fr}}
.pn a{display:block;padding:14px 16px;border:1px solid var(--line);border-radius:8px;text-decoration:none;color:var(--text);font-size:.95rem;line-height:1.5}
.pn a:hover{background:var(--surface)}
.pn small{display:block;color:var(--muted);font-size:.78rem;margin-bottom:2px}
.pn a:last-child:not(:first-child){text-align:right}

/* hub + search */
.phead{max-width:1120px;margin:0 auto;padding:30px var(--gutter) 6px}
.phead h1{font-size:clamp(1.8rem,4.4vw,2.7rem);max-width:17em;text-wrap:balance}
.phead p{color:var(--muted);max-width:40rem;margin:14px 0 0}
.plist{max-width:1120px;margin:0 auto;padding:12px var(--gutter) 0}
.sform{display:flex;max-width:34rem;margin:22px 0 8px}
.sform input{flex:1;min-width:0;background:var(--surface);border:1px solid var(--line);border-right:0;color:var(--text);padding:13px 18px;font:inherit;border-radius:999px 0 0 999px}
.sform button{background:var(--accent);color:var(--accent-ink);border:0;padding:0 24px;font:inherit;font-weight:800;border-radius:0 999px 999px 0;cursor:pointer}
.sres{list-style:none;padding:0;margin:20px 0 0}
.sres li{border-top:1px solid var(--line);margin:0}
.sres a{display:block;padding:16px 2px;text-decoration:none;color:var(--text)}
.sres strong{display:block;font-family:var(--serif);font-size:1.1rem}
.sres span{display:block;color:var(--muted);font-size:.92rem;line-height:1.6}
.sres a:hover strong{color:var(--link)}

/* footer */
.foot{margin-top:clamp(56px,9vw,110px);border-top:1px solid var(--line);padding:34px 0 24px;color:var(--muted);font-size:.86rem;line-height:1.8}
.foot .wrap{display:grid;gap:22px}
.foot p{margin:0}
.fkw{display:flex;flex-wrap:wrap;gap:6px 18px;list-style:none;padding:0;margin:0}
.fkw li{margin:0}
.fkw a{color:var(--text);font-weight:600;text-decoration:none}
.fkw a:hover{color:var(--accent)}
.flinks{display:flex;flex-wrap:wrap;gap:6px 18px}
.flinks a{color:var(--muted)}

.ctamid{margin:2.2em 0;padding:16px 18px;border:1px dashed var(--line);border-radius:8px;display:flex;flex-wrap:wrap;gap:12px 18px;align-items:center;justify-content:space-between}
.ctamid p{margin:0;font-size:.95rem;color:#D4D5D8;flex:1 1 14rem}
.ctamid .btn{padding:11px 22px;font-size:.96rem}
.about p,.about li{max-width:var(--read)}