:root{--bg:#faf7f2;--surface:#fff;--ink:#1d1b3a;--muted:#5b5a78;--indigo:#2b2a6b;--indigo-2:#3d3b94;--lav:#e9e6fb;--aqua:#2a9d9b;--aqua-bg:#dff3f1;--line:#dcd8ee;--warn:#8a5a00;--warn-bg:#fff2d6;--err:#a3162f;--focus:#0b57d0;--radius:12px;--shadow:0 1px 3px rgba(40,35,110,.12)}
:root[data-theme=dark]{--bg:#12122b;--surface:#1b1b3d;--ink:#ecebfa;--muted:#b3b1d6;--indigo:#c9c6ff;--indigo-2:#a9a5f5;--lav:#26264f;--aqua:#6fd6d2;--aqua-bg:#143a3b;--line:#35356b;--warn:#ffd48a;--warn-bg:#3a2d10;--err:#ff8da1;--focus:#8ab4ff;--shadow:none}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#12122b;--surface:#1b1b3d;--ink:#ecebfa;--muted:#b3b1d6;--indigo:#c9c6ff;--indigo-2:#a9a5f5;--lav:#26264f;--aqua:#6fd6d2;--aqua-bg:#143a3b;--line:#35356b;--warn:#ffd48a;--warn-bg:#3a2d10;--err:#ff8da1;--focus:#8ab4ff;--shadow:none}}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 20px}
main.wrap{padding-top:8px;padding-bottom:48px;min-height:60vh}
a{color:var(--indigo-2);text-underline-offset:3px}a:hover{color:var(--aqua)}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:4px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:0;background:var(--indigo);color:var(--bg);padding:8px 14px;z-index:99}.skip:focus{left:8px;top:8px}
h1,h2,h3{line-height:1.25;color:var(--indigo)}h1{font-size:clamp(1.7rem,4vw,2.5rem);margin:.6em 0 .4em}h2{font-size:1.5rem;margin:1.6em 0 .5em}h3,.h3{font-size:1.15rem;margin:.2em 0 .4em}
.lead{font-size:1.15rem;color:var(--ink)}.muted{color:var(--muted)}.small{font-size:.9rem}
p,li{max-width:78ch}
.site-header{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.header-row{display:flex;align-items:center;gap:12px;padding-top:10px;padding-bottom:10px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:1.35rem;color:var(--indigo);text-decoration:none}
.header-search{display:flex;flex:1 1 260px;gap:6px;min-width:0}
input,select,textarea,button{font:inherit}
input[type=search],input[type=text],input[type=date],select,textarea{width:100%;padding:10px 12px;border:1.5px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink)}
textarea{resize:vertical}label{display:block;margin:.9em 0 .25em;font-weight:600}label.inline{display:flex;gap:8px;align-items:center;font-weight:400}label.inline input{width:auto}
fieldset{border:1.5px solid var(--line);border-radius:10px;margin:.9em 0}legend{font-weight:600;padding:0 6px}
button,.btn{display:inline-block;background:var(--indigo);color:var(--bg);border:1.5px solid var(--indigo);padding:10px 18px;border-radius:10px;cursor:pointer;text-decoration:none;font-weight:600;min-height:44px}
:root[data-theme=dark] button,:root[data-theme=dark] .btn{color:#12122b}
.btn:hover,button:hover{filter:brightness(1.1);color:var(--bg)}.btn.ghost{background:transparent;color:var(--indigo)}.btn.ghost:hover{background:var(--lav);color:var(--indigo)}
.btn.danger{color:var(--err);border-color:var(--err)}
.menu-btn,.theme-btn{background:transparent;color:var(--indigo);padding:8px 12px;min-height:40px}
.menu-btn{display:none}
.main-nav ul{display:flex;flex-wrap:wrap;gap:4px 18px;list-style:none;margin:0;padding:0 0 10px}
.main-nav a{display:block;padding:6px 2px;text-decoration:none;color:var(--ink);border-bottom:2px solid transparent}
.main-nav a:hover,.main-nav a[aria-current]{border-bottom-color:var(--aqua);color:var(--indigo)}
.js .menu-btn{display:inline-block}.js .main-nav{display:none}.js .main-nav.open{display:block}
@media(min-width:900px){.js .menu-btn{display:none}.js .main-nav{display:block}}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:4px;padding:10px 0 0;margin:0;font-size:.9rem;color:var(--muted)}
.crumbs li+li::before{content:"›";margin-right:6px}
.hero{background:linear-gradient(135deg,var(--lav),var(--aqua-bg));border-radius:20px;padding:36px 24px;margin:18px 0}
.hero h1{margin-top:0}.hero-search{display:flex;gap:8px;max-width:640px;margin:18px 0}.hero-search input{font-size:1.1rem;padding:14px}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap}
.cards{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;box-shadow:var(--shadow)}.card p{margin:.2em 0 0;color:var(--muted);font-size:.95rem}.card h3 a,.card .h3 a{text-decoration:none}
.chips,.inline-list{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:.5em 0}
.chips a,.inline-list a{display:inline-block;padding:6px 14px;border:1.5px solid var(--line);border-radius:999px;background:var(--surface);text-decoration:none}.chips a:hover,.inline-list a:hover{border-color:var(--aqua)}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:8px 20px 20px;margin:20px 0}
.two-col{display:grid;gap:18px}@media(min-width:900px){.two-col{grid-template-columns:1fr 1fr}}
.steps{padding-left:1.3em}
.answer{background:var(--aqua-bg);border-left:5px solid var(--aqua);padding:14px 18px;border-radius:0 var(--radius) var(--radius) 0}
.toc,.refine{background:var(--lav);border-radius:var(--radius);padding:12px 18px;margin:16px 0}.toc ol{margin:.4em 0 0;padding-left:1.2em}
.variant{border-top:1px solid var(--line);padding-top:4px;scroll-margin-top:90px}.variant:target{background:var(--aqua-bg);border-radius:8px;padding:4px 12px}
.anchor{text-decoration:none;opacity:.5;margin-left:4px;font-weight:400}
section[aria-labelledby]{scroll-margin-top:90px}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}
.badge{display:inline-block;font-size:.8rem;font-weight:700;background:var(--aqua-bg);color:var(--aqua);padding:2px 10px;border-radius:999px;margin:.8em 0 0}.badge.warn{background:var(--warn-bg);color:var(--warn)}
.notice{background:var(--warn-bg);color:var(--warn);padding:10px 14px;border-radius:10px}.notice.error{color:var(--err)}
.alpha ul{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0}.alpha a{display:block;min-width:40px;text-align:center;padding:6px;border:1.5px solid var(--line);border-radius:8px;text-decoration:none;background:var(--surface)}
.list{list-style:none;padding:0}.list li{padding:6px 0;border-bottom:1px solid var(--line)}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius)}table{border-collapse:collapse;width:100%;min-width:640px;background:var(--surface)}th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}th{background:var(--lav)}
.rsec{border-top:1px solid var(--line);margin-top:10px}
.narrow{max-width:640px}.inline-search{display:flex;gap:8px;margin:14px 0}
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:24px 0;margin-top:30px}.footer-links{list-style:none;display:flex;flex-wrap:wrap;gap:6px 20px;padding:0}
.disclaimer{color:var(--muted);font-size:.92rem}
.suggest{position:absolute;z-index:30;background:var(--surface);border:1.5px solid var(--line);border-radius:10px;box-shadow:0 6px 20px rgba(0,0,0,.18);list-style:none;margin:2px 0 0;padding:4px;min-width:240px}
.suggest li{padding:0}.suggest a{display:block;padding:8px 12px;text-decoration:none;color:var(--ink);border-radius:6px}.suggest a[aria-selected=true],.suggest a:hover{background:var(--lav)}
.diary-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:10px 16px;margin:10px 0}.diary-item h3{margin:.2em 0}.diary-item p{white-space:pre-wrap}
@media(max-width:640px){body{font-size:16px}.hero{padding:24px 16px}.hero-search{flex-direction:column}.header-search{order:5;flex-basis:100%}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
html{scroll-behavior:smooth}
/* admin */
.admin-bar{background:var(--indigo);color:var(--bg);padding:10px 20px;display:flex;gap:16px;flex-wrap:wrap;align-items:center}.admin-bar a{color:var(--bg)}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin:16px 0}.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:12px 16px}.stat b{display:block;font-size:1.8rem;color:var(--indigo)}
.sev-error{color:var(--err);font-weight:700}.sev-warning{color:var(--warn);font-weight:700}.sev-ok{color:var(--aqua);font-weight:700}
.admin textarea.tall{min-height:180px}.admin code{background:var(--lav);padding:1px 6px;border-radius:4px}

.pager{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin:28px 0 8px;padding-top:12px;border-top:1px solid var(--line)}
.ex{padding:4px 12px;min-height:32px;font-size:.9rem;font-weight:400}
.tagcloud{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}.tagcloud span{background:var(--lav);border-radius:999px;padding:2px 10px;font-size:.9rem}
@media print{.site-header,.site-footer,.actions,.refine,.toc,.pager,.hero-search,.skip,.menu-btn,.theme-btn{display:none!important}body{background:#fff;color:#000;font-size:12pt}a{color:#000;text-decoration:none}.panel,.card{border:0;box-shadow:none;padding:0}main.wrap{max-width:none;padding:0}}