/* 소개·다운로드 페이지 공통 스타일.
   색·로고·글꼴은 skipperlabs.ai 브랜드를 따른다: Skipper 파랑 #0071E3, 네이비 #06132D, 나침반 로고, Pretendard.
   글꼴은 assets/fonts/pretendard.css(직접 호스팅)에서 온다. CSP가 외부 글꼴을 막기 때문이다. */
:root{
  color-scheme:light;
  --bg:#ffffff;
  --surface:#ffffff;
  --surface-muted:#f5f5f7;
  --surface-sunken:#ececf0;
  --surface-hover:#ededf1;
  --border:#e3e3e8;
  --border-strong:#c7c7cf;
  --rule:#1d1d1f;
  --text:#1d1d1f;
  --text-secondary:#515156;
  --text-muted:#737378;
  --accent:#0071e3;
  --accent-soft:#eaf3fe;
  --accent-soft-text:#0058b0;
  --button:#0071e3;
  --button-hover:#0062c3;
  --button-text:#ffffff;
  --focus:#0071e3;
  --band:#06132d;
  --band-text:#f5f5f7;
  --band-muted:#a9b3c6;
  --band-rule:rgb(255 255 255 / 16%);
  --danger:#b42318;
  --danger-soft:#fdecea;
  --warning:#8a5a00;
  --warning-soft:#fff3d6;
  --success:#177245;
  --success-soft:#e3f4ea;
  --code-bg:#f2f2f5;
  --shadow-sm:0 1px 2px rgb(0 0 0 / 5%);
  --shadow-md:0 8px 30px rgb(0 0 0 / 7%);
  --font-sans:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic","Segoe UI",sans-serif;
  --font-serif:"Skipper Serif","Noto Serif KR",AppleMyungjo,Batang,serif;
  --font-mono:ui-monospace,"SFMono-Regular",Consolas,"D2Coding",monospace;
  --page:1120px;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --bg:#0a0a0c;--surface:#131316;--surface-muted:#17171b;--surface-sunken:#1e1e23;--surface-hover:#24242a;
    --border:#2a2a31;--border-strong:#3b3b44;--rule:#e9e9ee;
    --text:#f5f5f7;--text-secondary:#b4b4ba;--text-muted:#8e8e95;
    --accent:#3d9bff;--accent-soft:#0f2340;--accent-soft-text:#8cc2ff;
    --button:#0071e3;--button-hover:#1a82ee;--button-text:#ffffff;--focus:#3d9bff;
    --band:#0c1730;--band-text:#f5f5f7;--band-muted:#a3aec2;--band-rule:rgb(255 255 255 / 14%);
    --danger:#f97066;--danger-soft:#3b1f1d;--warning:#f2b84b;--warning-soft:#3a2f16;--success:#4cc78c;--success-soft:#173226;
    --code-bg:#1e1e23;
    --shadow-sm:0 1px 2px rgb(0 0 0 / 40%);--shadow-md:0 8px 30px rgb(0 0 0 / 45%);
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --bg:#0a0a0c;--surface:#131316;--surface-muted:#17171b;--surface-sunken:#1e1e23;--surface-hover:#24242a;
  --border:#2a2a31;--border-strong:#3b3b44;--rule:#e9e9ee;
  --text:#f5f5f7;--text-secondary:#b4b4ba;--text-muted:#8e8e95;
  --accent:#3d9bff;--accent-soft:#0f2340;--accent-soft-text:#8cc2ff;
  --button:#0071e3;--button-hover:#1a82ee;--button-text:#ffffff;--focus:#3d9bff;
  --band:#0c1730;--band-text:#f5f5f7;--band-muted:#a3aec2;--band-rule:rgb(255 255 255 / 14%);
  --danger:#f97066;--danger-soft:#3b1f1d;--warning:#f2b84b;--warning-soft:#3a2f16;--success:#4cc78c;--success-soft:#173226;
  --code-bg:#1e1e23;
  --shadow-sm:0 1px 2px rgb(0 0 0 / 40%);--shadow-md:0 8px 30px rgb(0 0 0 / 45%);
}

/* 제목용 세리프. scripts/serif-font.mjs가 class="serif" 요소의 글자만 담아 만든다 */
@font-face{font-family:"Skipper Serif";src:url(fonts/serif.woff2) format("woff2");font-weight:600;font-style:normal;font-display:swap}

/* 기본 */
*{box-sizing:border-box}
html{font-family:var(--font-sans);color:var(--text);background:var(--bg);font-size:16px;-webkit-font-smoothing:antialiased;font-synthesis:none;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--text);line-height:1.65;letter-spacing:-.005em;word-break:keep-all;overflow-wrap:anywhere}
h1,h2,h3,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0}
a{color:inherit}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
code{font-family:var(--font-mono);font-size:.86em;background:var(--code-bg);padding:1px 6px;border-radius:5px;letter-spacing:0}
:is(a,button,summary,[tabindex="0"]):focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:6px}
.icon{width:18px;height:18px;flex-shrink:0}
.serif{font-family:var(--font-serif);font-weight:600}
.nowrap{white-space:nowrap}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.wrap{width:100%;max-width:var(--page);margin:0 auto;padding:0 24px}
@media(max-width:640px){.wrap{padding:0 16px}}

/* 머리 */
.site-header{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:saturate(1.6) blur(14px);-webkit-backdrop-filter:saturate(1.6) blur(14px);border-bottom:1px solid transparent;transition:border-color .2s}
.site-header.scrolled{border-bottom-color:var(--border)}
.site-header .wrap{display:flex;align-items:center;gap:24px;height:60px}
.brand{display:inline-flex;align-items:center;gap:8px;text-decoration:none;font-weight:650;font-size:18px;letter-spacing:-.02em;color:var(--text)}
.brand .pro{margin-left:-3px;font-weight:650;color:var(--accent)}
.logo{width:22px;height:22px;flex-shrink:0;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.site-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.site-nav a:not(.button){font-size:14.5px;color:var(--text-secondary);text-decoration:none}
.site-nav a:not(.button):hover,.site-nav a:not(.button)[aria-current="page"]{color:var(--text)}
@media(max-width:760px){.site-nav a:not(.button){display:none}}

/* 버튼. 둥근 알약 모양 */
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:9px 20px;border-radius:980px;font-size:15px;font-weight:600;letter-spacing:-.01em;text-decoration:none;white-space:nowrap;transition:background .15s,border-color .15s,color .15s}
.button.primary{background:var(--button);color:var(--button-text)}
.button.primary:hover{background:var(--button-hover)}
.button.secondary{background:transparent;color:var(--text);border:1px solid var(--border-strong)}
.button.secondary:hover{border-color:var(--text-muted);background:var(--surface-muted)}
.button.small{min-height:34px;padding:6px 16px;font-size:14px}
.button.large{min-height:52px;padding:13px 28px;font-size:16.5px}
.button .meta{font-weight:500;opacity:.8;font-size:.88em}

/* 첫 화면. ycombinator.com처럼 가운데 정렬한 세리프 제목, 한 줄 설명, 큰 알약 버튼 하나 */
.hero{padding:128px 0 80px;text-align:center}
.hero h1{font-size:clamp(40px,6.4vw,78px);line-height:1.2;letter-spacing:-.035em}
.hero-lead{max-width:600px;margin:32px auto 0;text-wrap:balance;font-size:clamp(17px,1.7vw,20px);line-height:1.7;color:var(--text-secondary)}
.button.cta{min-height:72px;margin-top:48px;padding:0 44px;font-size:22px;letter-spacing:-.02em}
.text-link{display:block;width:max-content;max-width:100%;margin:22px auto 0;font-size:17px;color:var(--text);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px}
.text-link:hover{color:var(--accent)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
@media(max-width:640px){.hero{padding:72px 0 56px}.button.cta{width:100%;min-height:64px;font-size:20px;padding:0 24px}}

/* 답변 예시 */
.showcase{padding-bottom:8px}
.demo{max-width:980px;margin:0 auto}
.demo-frame{border:1px solid var(--border);border-radius:20px;background:var(--surface);overflow:hidden;box-shadow:var(--shadow-md)}
.demo-label{font-size:12px;font-weight:650;color:var(--text-muted);letter-spacing:.02em;flex-shrink:0}
.demo-q{display:flex;align-items:baseline;gap:18px;padding:18px 28px;background:var(--surface-muted);border-bottom:1px solid var(--border)}
.demo-q p{font-size:17px;font-weight:600;letter-spacing:-.015em}
.demo-body{display:grid;grid-template-columns:minmax(0,1fr) 280px}
.demo-answer{display:flex;flex-direction:column;gap:16px;padding:26px 28px 28px;font-size:15.5px}
.demo-footnote{font-size:13px;color:var(--text-muted)}
.demo-sources{padding:26px 24px 28px;border-left:1px solid var(--border)}
.demo-sources ol{margin-top:14px;display:flex;flex-direction:column;gap:16px}
.demo-sources li{list-style:none;display:grid;grid-template-columns:20px minmax(0,1fr);gap:10px;font-size:14px;line-height:1.45}
.demo-sources code{display:block;margin-top:3px;padding:0;background:none;font-size:12.5px;color:var(--text-muted)}
.answer-table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums;font-size:15px}
.answer-table th{padding:0 12px 9px;border-bottom:1px solid var(--rule);font-size:12.5px;font-weight:600;color:var(--text-muted);text-align:right}
.answer-table td{padding:11px 12px;border-bottom:1px solid var(--border);text-align:right;white-space:nowrap}
.answer-table :is(th,td):first-child{padding-left:0;text-align:left}
.answer-table :is(th,td):last-child{padding-right:0}
.cite{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;background:var(--accent-soft);color:var(--accent-soft-text);font-size:11.5px;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:0}
.demo figcaption{margin-top:14px;font-size:13px;color:var(--text-muted);text-align:center}
@media(max-width:860px){.demo-body{grid-template-columns:minmax(0,1fr)}.demo-sources{border-left:0;border-top:1px solid var(--border)}}
@media(max-width:560px){
  .demo-q{flex-direction:column;gap:4px;padding:16px}
  .demo-answer,.demo-sources{padding:20px 16px}
  .answer-table :is(th,td):nth-child(3){display:none}
  .answer-table td{padding:10px 8px}
}

/* 세 줄 요약 */
.points{padding:120px 0 136px}
.points .wrap{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px 56px;max-width:1028px}
.point h2{font-size:clamp(24px,2.4vw,28px);line-height:1.3;letter-spacing:-.03em}
.point p{margin-top:12px;font-size:16.5px;color:var(--text-secondary)}
@media(max-width:760px){.points{padding:80px 0 96px}.points .wrap{grid-template-columns:minmax(0,1fr)}}

/* 바닥. 네이비 띠에 로고·한 줄, 오른쪽에 링크 열 */
.site-footer{background:var(--band);color:var(--band-text);padding:72px 0 48px;font-size:15px}
.footer-top{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:40px 64px}
.footer-brand{display:flex;align-items:center;gap:12px}
.footer-brand .logo{width:30px;height:30px;color:#fff}
.footer-brand p{font-size:20px;letter-spacing:-.02em}
.footer-cols{display:flex;gap:40px 96px}
.footer-cols h2{margin-bottom:12px;font-size:15px;font-weight:700;color:#fff}
.footer-cols a{display:block;color:var(--band-text);text-decoration:none;line-height:2.1}
.footer-cols a:hover{text-decoration:underline;text-underline-offset:4px}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 48px;margin-top:64px;padding-top:28px;border-top:1px solid var(--band-rule);font-size:13.5px;color:var(--band-muted)}
.footer-bottom .disclaimer{max-width:600px;line-height:1.7}
.site-footer :focus-visible{outline-color:#fff}
@media(max-width:640px){.site-footer{padding:56px 0 40px}.footer-cols{gap:48px}.footer-bottom{margin-top:48px}}


/* ===== 다운로드 페이지 ===== */
.dl-hero{padding:72px 0 8px}
.dl-hero h1{font-size:clamp(34px,4.8vw,52px);line-height:1.2;letter-spacing:-.035em}
.dl-hero>p{margin-top:12px;font-size:17px;color:var(--text-secondary);max-width:640px}
.dl-card{margin-top:36px;padding:32px;border-radius:18px;background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow-md)}
.dl-card[aria-busy="true"] .skeleton{display:block}
.skeleton{display:none;height:20px;border-radius:6px;background:linear-gradient(90deg,var(--surface-muted),var(--surface-hover),var(--surface-muted));background-size:200% 100%;animation:shimmer 1.2s linear infinite}
.skeleton+.skeleton{margin-top:12px}
.skeleton.w60{width:60%}.skeleton.w40{width:40%}.skeleton.tall{height:52px;width:280px;border-radius:12px;margin-top:20px}
@keyframes shimmer{to{background-position:-200% 0}}
@media(prefers-reduced-motion:reduce){.skeleton{animation:none}}
.dl-primary{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.dl-primary .platform{display:flex;align-items:center;gap:16px}
.dl-primary .platform-icon{display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:14px;background:var(--accent-soft);color:var(--accent-soft-text)}
.dl-primary .platform-icon .icon{width:28px;height:28px}
.dl-primary h2{font-size:22px;letter-spacing:-.4px;line-height:1.35}
.dl-primary .sub{font-size:14px;color:var(--text-secondary);margin-top:2px}
.dl-buttons{display:flex;flex-wrap:wrap;gap:10px}
.dl-hint{margin-top:20px;padding:12px 14px;border-radius:10px;background:var(--surface-muted);border:1px solid var(--border);font-size:14px;color:var(--text-secondary)}
.dl-hint strong{color:var(--text)}
.dl-empty{display:grid;grid-template-columns:56px minmax(0,1fr);gap:4px 18px;align-items:start}
.dl-empty .platform-icon{grid-row:span 3;display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:14px;background:var(--surface-muted);color:var(--text-secondary);border:1px solid var(--border)}
.dl-empty .platform-icon .icon{width:26px;height:26px}
.dl-empty h2{font-size:21px;letter-spacing:-.3px}
.dl-empty p{color:var(--text-secondary);font-size:15px}
.dl-empty ul{margin-top:10px;display:flex;flex-direction:column;gap:6px}
.dl-empty li{list-style:none;display:flex;gap:8px;font-size:14.5px;color:var(--text-secondary)}
.dl-empty li .icon{width:16px;height:16px;color:var(--success);margin-top:4px}
.dl-empty .button{margin-top:14px;justify-self:start}
.dl-empty.error .platform-icon{color:var(--danger);background:var(--danger-soft);border-color:transparent}
.notice{display:flex;gap:10px;padding:12px 14px;border-radius:10px;font-size:14px;line-height:1.65}
.notice .icon{width:18px;height:18px;margin-top:2px}
.notice.warning{background:var(--warning-soft);color:var(--warning)}
.notice.info{background:var(--accent-soft);color:var(--accent-soft-text)}
.notice.spaced{margin-top:16px}
.dl-hint ul.notes{margin:6px 0 0 18px;padding:0}

.dl-section{padding:56px 0 0}
main.wrap{padding-bottom:88px}
.dl-section>h2{font-size:28px;letter-spacing:-.03em;margin-bottom:16px}
.dl-section>p.lead{margin:-6px 0 18px;color:var(--text-secondary);font-size:15px}
.files{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--border);border-radius:14px;overflow:hidden;background:var(--surface);font-size:14px}
.files th,.files td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--border);vertical-align:middle}
.files thead th{background:var(--surface-muted);font-size:12.5px;font-weight:600;color:var(--text-secondary)}
.files tbody tr:last-child td{border-bottom:0}
.files td.name{font-weight:600}
.files td.name small{display:block;font-weight:400;color:var(--text-muted);font-size:12.5px;margin-top:1px}
.files td.size{white-space:nowrap;font-variant-numeric:tabular-nums;color:var(--text-secondary)}
.hash{display:inline-flex;align-items:center;gap:6px;max-width:100%}
.hash code{display:inline-block;max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;vertical-align:middle;background:none;padding:0;color:var(--text-secondary);font-size:12.5px}
.copy-btn{display:inline-flex;align-items:center;gap:5px;padding:4px 8px;border-radius:7px;border:1px solid var(--border);background:var(--surface);font-size:12px;color:var(--text-secondary)}
.copy-btn:hover{background:var(--surface-hover);color:var(--text)}
.copy-btn .icon{width:13px;height:13px}
.files a.file-link{color:var(--accent);font-weight:600;text-decoration:none;white-space:nowrap;display:inline-flex;align-items:center;gap:6px}
.files a.file-link:hover{text-decoration:underline}
.files a.file-link .icon{width:15px;height:15px}
@media(max-width:760px){
  .files thead{display:none}
  .files,.files tbody,.files tr,.files td{display:block;width:100%}
  .files tr{padding:12px 14px;border-bottom:1px solid var(--border)}
  .files tbody tr:last-child{border-bottom:0}
  .files td{padding:3px 0;border:0}
  .files td[data-label]::before{content:attr(data-label);display:inline-block;min-width:68px;color:var(--text-muted);font-size:12.5px}
  .hash code{max-width:150px}
}

.tabs{display:inline-flex;gap:4px;padding:4px;border-radius:980px;background:var(--surface-sunken);margin-bottom:18px}
.tabs button{display:inline-flex;align-items:center;gap:7px;padding:7px 16px;border-radius:980px;font-size:14px;font-weight:550;color:var(--text-secondary)}
.tabs button .icon{width:16px;height:16px}
.tabs button[aria-selected="true"]{background:var(--surface);color:var(--text);box-shadow:var(--shadow-sm)}
.panel{padding:26px 28px;border-radius:16px;background:var(--surface);border:1px solid var(--border)}
.panel[hidden]{display:none}
.panel ol{counter-reset:p;display:flex;flex-direction:column;gap:14px}
.panel ol>li{list-style:none;counter-increment:p;display:grid;grid-template-columns:28px minmax(0,1fr);gap:2px 12px;font-size:15px}
.panel ol>li::before{content:counter(p);display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;background:var(--surface-muted);border:1px solid var(--border);font-size:12.5px;font-weight:700;color:var(--text-secondary);grid-row:span 2}
.panel ol>li strong{font-weight:600}
.panel ol>li span{color:var(--text-secondary);font-size:14px}
.panel .notice{margin-top:18px}
@media(max-width:640px){.panel{padding:20px 16px}}

.first-run{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px 40px}
.first-run li{list-style:none;padding-top:18px;border-top:2px solid var(--rule)}
.first-run h3{font-size:17px;letter-spacing:-.02em}
.first-run p{margin-top:6px;font-size:14.5px;color:var(--text-secondary)}
@media(max-width:860px){.first-run{grid-template-columns:minmax(0,1fr)}}

.facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;border:1px solid var(--border);border-radius:14px;overflow:hidden;background:var(--border)}
.facts div{padding:16px 20px;background:var(--surface)}
.facts div:last-child:nth-child(odd){grid-column:1/-1}
.facts dt{font-size:12.5px;color:var(--text-muted);font-weight:600}
.facts dd{margin-top:4px;font-size:14.5px}
.facts dd code{font-size:12.5px}
@media(max-width:760px){.facts{grid-template-columns:minmax(0,1fr)}}
.not-found-actions{justify-content:flex-start}