/* base reset for standalone hosting */
:root{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
body{margin:0}
img{max-width:100%}
[hidden]{display:none!important}

:root{
  --navy:#032C50; --cyan:#27BFD6; --blue:#4A7EBB; --steel:#195E89; --slate:#5D8180; --green:#82AE19;
  --bg:#F4F7FA; --card:#FFFFFF; --ink:#032C50; --text:#22313F; --muted:#5E6C7A; --line:rgba(3,44,80,.10);
  --note-bg:#FFF6E0; --note-ink:#6B4A00; --note-line:#F0D48A;
  --f:-apple-system,BlinkMacSystemFont,"SF Pro Text","SF Pro Display","Helvetica Neue",Helvetica,Arial,sans-serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#020F1D; --card:#071E35; --ink:#F2F7FB; --text:#D4DFEA; --muted:#93A6B9; --line:rgba(255,255,255,.08);
  --note-bg:#2E2408; --note-ink:#F2D58A; --note-line:#5A4712; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#020F1D; --card:#071E35; --ink:#F2F7FB; --text:#D4DFEA; --muted:#93A6B9; --line:rgba(255,255,255,.08);
  --note-bg:#2E2408; --note-ink:#F2D58A; --note-line:#5A4712; color-scheme:dark}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--text);font-family:var(--f);font-size:1rem;line-height:1.65;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--f);font-weight:700;color:var(--ink);margin:0;letter-spacing:-.02em;line-height:1.15;text-wrap:balance}
a{color:var(--steel)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) a{color:var(--cyan)}}
:root[data-theme="dark"] a{color:var(--cyan)}
a:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.wrap{max-width:72rem;margin:0 auto;padding-inline:clamp(16px,4vw,40px)}
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;padding-block:12px;background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:blur(10px)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;background:#FFFFFF;border-radius:999px;padding:.5rem .6rem .5rem 1.25rem;box-shadow:0 8px 30px -14px rgba(2,20,38,.4),0 0 0 1px rgba(3,44,80,.06)}
.brand{display:flex;flex-direction:column;text-decoration:none;color:#032C50;line-height:1.1;min-width:0}
.brand b{font-size:1rem}
.brand span{font-size:.6875rem;color:#5D8180;letter-spacing:.08em;text-transform:uppercase;margin-top:2px}
.nav-r{display:flex;align-items:center;gap:.75rem}
.back{color:#195E89!important;text-decoration:none;font-weight:700;font-size:.9375rem;padding:.55rem 1rem;border-radius:999px}
.back:hover{background:#EEF3F8}
.nav img{height:34px;width:auto;display:block}
@media (max-width:520px){.nav img{display:none}.brand span{display:none}}
.hero{padding-block:clamp(2.5rem,6vw,4.5rem) clamp(1.5rem,3vw,2.5rem)}
.kicker{display:inline-flex;align-items:center;gap:.5rem;font-size:.8125rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--steel)}
.kicker::before{content:"";width:.5rem;height:.5rem;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(39,191,214,.18)}
.hero h1{font-size:clamp(2.25rem,5.5vw,3.5rem);letter-spacing:-.035em;margin-top:1rem}
.meta{margin-top:1rem;color:var(--muted);font-size:.9375rem}
.lead{margin-top:1.25rem;font-size:1.125rem;max-width:44rem;color:var(--muted)}
.draft{display:flex;gap:.75rem;align-items:flex-start;margin-top:1.75rem;max-width:44rem;background:var(--note-bg);color:var(--note-ink);border:1px solid var(--note-line);border-radius:16px;padding:1rem 1.2rem;font-size:.9375rem}
.draft b{white-space:nowrap}
.layout{display:grid;grid-template-columns:15rem minmax(0,1fr);gap:clamp(2rem,5vw,4rem);align-items:start;padding-bottom:clamp(4rem,8vw,6rem)}
@media (max-width:900px){.layout{grid-template-columns:minmax(0,1fr)}}
.toc{position:sticky;top:6.5rem;display:grid;gap:.15rem;font-size:.9375rem}
.toc p{font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 .5rem}
.toc a{color:var(--muted);text-decoration:none;padding:.35rem .75rem;border-left:2px solid var(--line)}
.toc a:hover{color:var(--ink);border-left-color:var(--cyan)}
@media (max-width:900px){.toc{position:static;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:1.25rem}}
.doc{background:var(--card);border:1px solid var(--line);border-radius:28px;padding:clamp(1.5rem,4vw,3rem);display:grid;gap:2.25rem;min-width:0}
.doc section{display:grid;gap:.9rem;scroll-margin-top:7rem}
.doc h2{font-size:1.5rem}
.doc h3{font-size:1.0625rem;margin-top:.25rem}
.doc p,.doc li{max-width:44rem}
.doc p{margin:0}
.doc ul{margin:0;padding:0;list-style:none;display:grid;gap:.5rem}
.doc ul li{position:relative;padding-left:1.4rem}
.doc ul li::before{content:"";position:absolute;left:0;top:.6em;width:.5rem;height:.5rem;border-radius:50%;background:var(--cyan)}
.note{background:var(--note-bg);color:var(--note-ink);border:1px dashed var(--note-line);border-radius:14px;padding:.8rem 1rem;font-size:.875rem;max-width:44rem}
.note b{display:block;font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:.15rem}
.ph{font-style:italic;color:var(--muted)}
.kv{display:grid;grid-template-columns:9rem minmax(0,1fr);gap:.5rem 1rem;max-width:44rem;margin:0}
.kv dt{font-weight:700;color:var(--ink)}
.kv dd{margin:0;overflow-wrap:anywhere}
@media (max-width:520px){.kv{grid-template-columns:minmax(0,1fr);gap:.1rem}.kv dd{margin-bottom:.6rem}}
footer{background:#FFFFFF;color:#5E6C7A;border-top:1px solid rgba(3,44,80,.08)}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1.5rem;padding-block:2.25rem}
footer b{display:block;color:#032C50}
footer small{font-size:.8125rem}
.flinks{display:flex;flex-wrap:wrap;gap:.4rem 1.25rem;font-size:.875rem}
.flinks a{color:#195E89;text-decoration:none;font-weight:700}
.flinks a[aria-current]{color:#032C50;text-decoration:underline}
footer img{height:48px;width:auto;display:block}
.bar{height:4px;background:linear-gradient(90deg,#25A0DA,#73C2E7 55%,#D7EEF8)}