/* app/app.css — Perennus investigation surface. Cream / ink / rust, Instrument Serif + Inter. */
:root{--cream:#faf5ee;--cream-deep:#f2ebe0;--card:#fff;--ink:#201a14;--ink-soft:#5c5347;--ink-faint:#8f8574;--line:#e7ddcd;--rust:#bf5b2e;--rust-deep:#a34a22;--rust-tint:#f7e6da;--green:#3c6b4a;--green-tint:#e5efe6;--amber:#9a6b1f;--amber-tint:#f6ecd6;--red:#9b3a2a;--red-tint:#f5e2dd;--slate:#4f5a66;--slate-tint:#e8ecef}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;background:var(--cream);color:var(--ink);-webkit-font-smoothing:antialiased;line-height:1.55;font-size:15px}
a{color:inherit;text-decoration:none}
a:hover{color:var(--rust-deep)}
code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.86em;background:var(--cream-deep);padding:1px 5px;border-radius:4px;word-break:break-all}
.serif,h1,h2,h3{font-family:'Instrument Serif',Georgia,serif;font-weight:400;letter-spacing:-.005em}
.muted{color:var(--ink-faint)}.small{font-size:12.5px}.num{text-align:right;font-variant-numeric:tabular-nums}
.hidden{display:none!important}

/* shell */
header.top{position:sticky;top:0;z-index:50;background:rgba(250,245,238,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:12px 20px;max-width:1040px;margin:0 auto}
.wordmark{font-family:'Instrument Serif',serif;font-size:21px;font-weight:700}
.nav-links{display:flex;align-items:center;gap:20px;font-size:13px;color:var(--ink-soft);white-space:nowrap}
.nav-links a.active{color:var(--ink);border-bottom:1px solid var(--rust)}
main{max-width:1040px;margin:0 auto;padding:36px 20px 96px}
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:999px;font:inherit;font-size:13.5px;font-weight:600;cursor:pointer;border:1px solid transparent;white-space:nowrap;transition:all .15s;background:transparent;color:var(--ink)}
.btn-primary{background:var(--rust);color:#fff}.btn-primary:hover{background:var(--rust-deep)}
.btn-ghost{border-color:var(--line)}.btn-ghost:hover{border-color:var(--ink-faint)}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.eyebrow{font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--rust-deep);margin-bottom:10px}

/* result head */
.result-head{margin:8px 0 34px}
.result-head h1{font-size:clamp(30px,4.2vw,44px);line-height:1.1;margin:6px 0 10px;text-wrap:balance}
.result-head .sub{color:var(--ink-soft);font-size:14.5px}
.card-top{display:flex;align-items:center;gap:10px;font-size:12.5px;margin-bottom:8px;flex-wrap:wrap}

/* numbered IA sections */
.ia{display:grid;grid-template-columns:56px 1fr;gap:18px;padding:30px 0;border-top:1px solid var(--line)}
.ia-body{min-width:0}
.ia-num{font-family:'Instrument Serif',serif;font-size:22px;color:var(--rust-deep);line-height:1.2}
.ia h2{font-size:26px;margin-bottom:10px}
.ia h4{font-size:13px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-soft);margin:18px 0 8px}
.lede{color:var(--ink-soft);margin-bottom:12px;max-width:640px}
.empty{color:var(--ink-soft);background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px;max-width:640px}
@media(max-width:640px){.ia{grid-template-columns:1fr;gap:4px}.ia-num{font-size:16px}}

/* facts */
.facts{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(230px,100%),1fr));gap:10px 24px;max-width:860px}
.facts div{padding:8px 0;border-bottom:1px dashed var(--line);min-width:0}
.facts dt{font-size:11.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-faint);margin-bottom:2px}
.facts dd{font-size:14.5px;overflow-wrap:anywhere}

/* cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin-bottom:12px;max-width:760px}
.card h3{font-size:22px;line-height:1.2;margin:2px 0 8px}
.gap{font-size:13.5px;color:var(--ink-soft);margin-bottom:6px}
.econ-point{font-family:'Instrument Serif',serif;font-size:26px;color:var(--ink)}
.econ-big .econ-point{font-size:38px}
.econ,.econ-big{margin:6px 0 12px}
.callout{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--amber);border-radius:12px;padding:14px 16px;margin:14px 0;max-width:760px}
.callout.bad{border-left-color:var(--red)}
.callout-title{font-weight:600;margin-bottom:4px}

/* needs evidence */
.need{padding:10px 0;border-bottom:1px dashed var(--line);max-width:760px}
.need-subject{font-weight:600;margin-bottom:4px}
.reqs{padding-left:18px;font-size:13.5px;color:var(--ink-soft)}.reqs li{margin:3px 0}
.unknowns{list-style:none;max-width:760px}.unknowns li{padding:8px 0;border-bottom:1px dashed var(--line)}
.next{padding-left:18px;max-width:760px}.next li{margin:6px 0}

/* pills */
.pill{display:inline-block;padding:2px 9px;border-radius:999px;font-size:11.5px;font-weight:600;letter-spacing:.02em;background:var(--cream-deep);color:var(--ink-soft)}
.pill-observed,.pill-ok,.pill-accepted{background:var(--green-tint);color:var(--green)}
.pill-derived,.pill-detected,.pill-inferred{background:var(--slate-tint);color:var(--slate)}
.pill-unknown,.pill-insufficient_evidence,.pill-warn,.pill-under_review,.pill-asserted{background:var(--amber-tint);color:var(--amber)}
.pill-bad,.pill-dismissed{background:var(--red-tint);color:var(--red)}
.pill-closed,.pill-delivered{background:var(--cream-deep);color:var(--ink-faint)}
.pill-inferred{background:var(--rust-tint);color:var(--rust-deep)}

/* tables */
.table-wrap{overflow-x:auto;max-width:100%}
table{border-collapse:collapse;width:100%;font-size:13.5px;background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden}
th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-faint);padding:9px 12px;border-bottom:1px solid var(--line);background:var(--cream-deep)}
td{padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:top}
tr:last-child td{border-bottom:0}
th.num,td.num{text-align:right;font-variant-numeric:tabular-nums}

/* actions */
.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-start}
.dismiss summary{list-style:none}.dismiss summary::-webkit-details-marker{display:none}
.dismiss[open]{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px;flex-basis:100%}
.dismiss label{display:block;font-size:13px;margin:10px 0}
.dismiss textarea{display:block;width:100%;max-width:520px;margin-top:6px;padding:8px 10px;border:1px solid var(--line);border-radius:8px;font:inherit;font-size:13.5px;background:var(--cream)}
.action-msg{flex-basis:100%;font-size:13px;color:var(--ink-soft);min-height:1em}
.action-msg.bad{color:var(--red)}

/* auth + list + states */
.auth{max-width:380px;margin:60px auto}
.auth h1{font-size:30px;margin-bottom:6px}
.auth p{color:var(--ink-soft);margin-bottom:18px}
.field{display:block;margin-bottom:12px;font-size:13px}
.field input,.field select{display:block;width:100%;margin-top:5px;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font:inherit;background:var(--card)}
.ia form .btn{margin-top:6px}
.auth .btn{width:100%;justify-content:center;margin-top:6px}
.auth .err{color:var(--red);font-size:13px;margin-top:10px;min-height:1em}
.auth .err.ok{color:var(--green)}
.runs{list-style:none;max-width:760px}
.runs li{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 18px;margin-bottom:10px;display:flex;justify-content:space-between;gap:14px;align-items:center}
.runs .meta{font-size:12.5px;color:var(--ink-faint)}
.status-page{max-width:640px;margin:60px auto;text-align:center;color:var(--ink-soft)}
.status-page h1{font-size:30px;margin-bottom:8px;color:var(--ink)}
@media (prefers-reduced-motion:no-preference){.ia{animation:rise .35s ease both}@keyframes rise{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}}