/* Layout: sticky navy bar + tab strip; one working panel at a time; tools on the left, reference on the right on wide screens */
:root{
  --navy:#0F2C5C; --orange:#EA580C; --orange-ink:#C2410C;
  --bg:#FAFAF7; --surface:#FFFFFF; --surface-2:#F4F4F5; --line:#E4E4E7;
  --fg:#0A0A0A; --muted:#5F5F69; --on-navy:#FFFFFF; --navy-soft:#E4E9F2;
  --ok:#2E7D4F; --ok-bg:#E3F2E9; --warn:#9A6100; --warn-bg:#FBEFD9; --bad:#B3261E; --bad-bg:#FBE4E2;
  --font:"Inter",-apple-system,"Segoe UI",sans-serif; --serif:"Instrument Serif",Georgia,serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --r:8px;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --navy:#16284A; --orange:#E8924A; --orange-ink:#F0A764;
  --bg:#0E1626; --surface:#152035; --surface-2:#1B2840; --line:#2A3A57;
  --fg:#E6EBF4; --muted:#9AA7BF; --on-navy:#FFFFFF; --navy-soft:#1F3050;
  --ok:#6CC795; --ok-bg:#16352A; --warn:#E8B860; --warn-bg:#3A2C12; --bad:#F08A80; --bad-bg:#3D1C1A;
  color-scheme:dark}}
:root[data-theme="dark"]{
  --navy:#16284A; --orange:#E8924A; --orange-ink:#F0A764;
  --bg:#0E1626; --surface:#152035; --surface-2:#1B2840; --line:#2A3A57;
  --fg:#E6EBF4; --muted:#9AA7BF; --on-navy:#FFFFFF; --navy-soft:#1F3050;
  --ok:#6CC795; --ok-bg:#16352A; --warn:#E8B860; --warn-bg:#3A2C12; --bad:#F08A80; --bad-bg:#3D1C1A;
  color-scheme:dark}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--fg);font:15px/1.55 var(--font);margin:0;-webkit-font-smoothing:antialiased}
h1,h2,h3{text-wrap:balance;line-height:1.2;margin:0}
h2{font-size:clamp(1.6rem,3vw,2.2rem);letter-spacing:-0.02em}
h2 em{font-family:var(--serif);font-style:italic;font-weight:400}
h3{font-size:1.1rem}
p{margin:0}
a{color:var(--orange-ink)}
a:focus-visible,button:focus-visible,select:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--orange);outline-offset:2px}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.num{font-variant-numeric:tabular-nums}

/* top bar */
.bar{background:var(--navy);color:var(--on-navy);position:sticky;top:env(safe-area-inset-top,0px);z-index:10;box-shadow:0 1px 0 rgba(0,0,0,.2)}
.bar-in{max-width:1200px;margin:0 auto;padding:12px 16px 0;display:flex;flex-direction:column;gap:10px}
.brand{display:flex;align-items:center;gap:12px;flex-wrap:wrap;justify-content:space-between}
.brand-l{display:flex;align-items:center;gap:10px;min-width:0}
.mark{width:34px;height:34px;border-radius:8px;background:var(--orange);display:grid;place-items:center;font-weight:700;font-size:13px;color:#fff;letter-spacing:.5px;flex:none}
.brand h1{font-size:1.15rem}
.brand small{display:block;font-size:.8rem;opacity:.75}
.stamp{font-size:.78rem;background:rgba(255,255,255,.12);border-radius:999px;padding:3px 10px;white-space:nowrap}
.tabs{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none;margin:0 -16px;padding:0 16px}
.tabs::-webkit-scrollbar{display:none}
.tab{appearance:none;border:0;background:none;color:rgba(255,255,255,.75);font:inherit;font-size:.95rem;padding:9px 12px 11px;cursor:pointer;white-space:nowrap;border-bottom:3px solid transparent}
.tab:hover{color:#fff}
.tab[aria-selected="true"]{color:#fff;border-bottom-color:var(--orange);font-weight:700}

main{max-width:1200px;margin:0 auto;padding-inline:16px;padding-block:24px 48px}
.panel{display:flex;flex-direction:column;gap:20px}
.lede{color:var(--muted);max-width:68ch}
.head{display:flex;flex-direction:column;gap:6px}
.eyebrow{font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--orange-ink);font-weight:700}
.src{font-size:.85rem;color:var(--muted)}

.box{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px;min-width:0}
.box h3{margin-bottom:10px}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr));gap:16px;align-items:start}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:16px}
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,190px),1fr));gap:12px}
.tile{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;display:flex;flex-direction:column;gap:2px}
.tile .k{font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.tile .v{font-size:1.75rem;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.15}
.tile .s{font-size:.85rem;color:var(--muted)}
.tile.hot{border-color:var(--orange);box-shadow:inset 3px 0 0 var(--orange)}

.chip{display:inline-flex;align-items:center;gap:4px;font-size:.75rem;font-weight:700;border-radius:999px;padding:2px 9px;white-space:nowrap}
.c-ok{background:var(--ok-bg);color:var(--ok)}
.c-warn{background:var(--warn-bg);color:var(--warn)}
.c-bad{background:var(--bad-bg);color:var(--bad)}
.c-info{background:var(--navy-soft);color:var(--fg)}

.list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.list li{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;padding:10px 0;border-top:1px solid var(--line)}
.list li:first-child{border-top:0}
.list .when{font-size:.8rem;color:var(--muted);font-variant-numeric:tabular-nums;min-width:74px}
.list b{display:block}
.list span.d{color:var(--muted);font-size:.92rem}
ul.plain{margin:0;padding-left:1.2em;display:flex;flex-direction:column;gap:6px}

.tw{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
table{width:100%;border-collapse:collapse;font-size:.92rem}
th{text-align:left;font-size:.74rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:700;padding:9px 12px;background:var(--surface-2);border-bottom:1px solid var(--line);white-space:nowrap}
td{padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:top}
tr:last-child td{border-bottom:0}
td.r,th.r{text-align:right;font-variant-numeric:tabular-nums}

label.f{display:flex;flex-direction:column;gap:4px;font-size:.85rem;color:var(--muted);min-width:0}
select,input,textarea{font:inherit;font-size:.95rem;color:var(--fg);background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:8px 10px;width:100%;min-width:0}
textarea{font-family:var(--mono);font-size:.82rem;min-height:90px}
.form{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,160px),1fr));gap:10px;align-items:end}
.btn{appearance:none;font:inherit;font-size:.92rem;font-weight:700;border-radius:6px;padding:9px 14px;cursor:pointer;border:1px solid var(--navy);background:var(--navy);color:var(--on-navy)}
:root[data-theme="dark"] .btn{border-color:var(--orange)}
.btn.alt{background:transparent;color:var(--fg);border-color:var(--line)}
.btn.sm{padding:4px 9px;font-size:.8rem}
.btn:hover{filter:brightness(1.1)}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}

.seg{display:flex;flex-wrap:wrap;gap:6px}
.seg button{appearance:none;font:inherit;font-size:.88rem;border:1px solid var(--line);background:var(--surface);color:var(--fg);border-radius:999px;padding:6px 12px;cursor:pointer;text-align:left}
.seg button[aria-pressed="true"]{background:var(--navy);border-color:var(--navy);color:var(--on-navy)}
.q{display:flex;flex-direction:column;gap:8px;padding:12px 0;border-top:1px solid var(--line)}
.q:first-of-type{border-top:0;padding-top:0}
.q > .ql{font-weight:700;font-size:.92rem}

.result{border-radius:var(--r);padding:16px;background:var(--navy-soft);display:flex;flex-direction:column;gap:8px}
.result.ok{background:var(--ok-bg)}
.result.warn{background:var(--warn-bg)}
.result.bad{background:var(--bad-bg)}
.result .big{font-family:var(--mono);font-size:1.6rem;font-weight:600;letter-spacing:.02em;word-break:break-all}
.result .verdict{font-weight:700;font-size:1.05rem}
.kv{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;font-size:.92rem}
.kv dt{color:var(--muted)}
.kv dd{margin:0;font-weight:700}

.meter{height:12px;border-radius:999px;background:var(--surface-2);overflow:hidden;position:relative}
.meter i{display:block;height:100%;background:var(--ok);border-radius:999px;transition:width .3s}
.meter.warn i{background:var(--warn)}
.meter.bad i{background:var(--bad)}
.meter b{position:absolute;top:-2px;bottom:-2px;left:90%;width:2px;background:var(--fg);opacity:.45}

.chartbox{position:relative;height:300px}
.note{font-size:.85rem;color:var(--muted)}
.flag{border-left:3px solid var(--warn);background:var(--warn-bg);padding:10px 14px;border-radius:0 6px 6px 0;font-size:.92rem}
.example{font-size:.78rem;font-weight:700;color:var(--warn);background:var(--warn-bg);border-radius:4px;padding:2px 7px}
.foot{max-width:1200px;margin:0 auto;padding-inline:16px;padding-block:20px 40px;color:var(--muted);font-size:.85rem;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:6px}
details summary{cursor:pointer;font-weight:700}
details[open] summary{margin-bottom:10px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
@media (max-width:520px){.tile .v{font-size:1.45rem}.result .big{font-size:1.25rem}}