:root {
  color-scheme: dark;
  --bg: #090e13;
  --panel: #111923;
  --panel-2: #151e2a;
  --line: #2a3848;
  --text: #f2f4f7;
  --muted: #9aa8b8;
  --blue: #78b8f4;
  --red: #e85b50;
  --amber: #dda83e;
  --green: #62c39a;
  --sidebar: 18.625rem;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; }
body { margin: 0; color: var(--text); background: var(--bg); line-height: 1.6; }
a { color: var(--blue); text-decoration-thickness: 1px; text-underline-offset: .18em; }
a:hover { color: #a8d2fa; }
button, input, select { font: inherit; }
button, .button { cursor: pointer; }

.shell { min-height: 100vh; padding-left: var(--sidebar); }
.sidebar {
  position: fixed; inset: 0 auto 0 0; width: var(--sidebar); padding: 3.8rem 2.65rem 2rem;
  border-right: 1px solid var(--line); background: #080d12; display: flex; flex-direction: column;
}
.brand { color: var(--text); text-decoration: none; }
.brand img { width: 4.25rem; height: 4.25rem; display: block; margin-bottom: 1.4rem; }
.brand strong { display: block; font: 800 1.65rem/1 ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: .11em; }
.brand span { display: block; color: var(--muted); font-size: .76rem; margin-top: .7rem; max-width: 12rem; }
.nav { margin-top: 2.35rem; display: grid; gap: .35rem; }
.nav a { color: #aac2db; text-decoration: none; padding: .72rem .8rem; border-left: 3px solid transparent; font-size: .86rem; font-weight: 650; letter-spacing: .035em; text-transform: uppercase; }
.nav a:hover, .nav a[aria-current="page"] { background: rgba(232,91,80,.13); border-color: var(--red); color: var(--text); }
.sidebar-meta { margin-top: auto; color: var(--muted); font: .7rem/1.5 ui-monospace, SFMono-Regular, Consolas, monospace; }

.topbar { height: 4rem; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; padding: 0 max(2rem, calc((100vw - var(--sidebar) - 70rem)/2)); }
.crumb { color: var(--muted); font-size: .82rem; }
.topbar a { text-decoration: none; }
.main { max-width: 74rem; margin: 0 auto; padding: 2.5rem 2rem 5rem; }
.eyebrow { color: var(--red); font: 700 .7rem/1.3 ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: .14em; text-transform: uppercase; }
.hero { border: 1px solid var(--line); background: linear-gradient(100deg, var(--panel), #151b25 72%, #211a20); padding: clamp(2rem, 5vw, 4rem); position: relative; overflow: hidden; }
.hero::after { content: ""; position: absolute; right: -4rem; top: -4rem; width: 18rem; height: 18rem; border: 1px solid rgba(232,91,80,.35); transform: rotate(45deg); }
h1, h2, h3 { line-height: 1.12; margin-top: 0; }
h1 { font-size: clamp(2.3rem, 5vw, 4.8rem); max-width: 14ch; margin: .85rem 0 1.1rem; letter-spacing: -.045em; }
h2 { font-size: clamp(1.45rem, 2.5vw, 2rem); }
h3 { font-size: 1.05rem; }
.lede { color: #bdc8d3; max-width: 66ch; font-size: 1.05rem; }
.hero-actions { margin-top: 1.6rem; display: flex; flex-wrap: wrap; gap: .75rem; position: relative; z-index: 1; }
.button { display: inline-flex; align-items: center; min-height: 3rem; padding: .6rem 1rem; border: 1px solid var(--line); background: var(--panel-2); color: var(--text); text-decoration: none; font-weight: 700; }
.button.primary { background: var(--red); border-color: var(--red); }
.button:hover { border-color: var(--blue); color: var(--text); }

.section { margin-top: 3.5rem; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 2rem; border-bottom: 1px solid var(--line); margin-bottom: 1rem; }
.section-head p { color: var(--muted); max-width: 55ch; }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.card { border: 1px solid var(--line); border-left: 3px solid var(--blue); padding: 1.3rem; background: var(--panel); }
.card p { color: #b5c2cf; }
.meta { color: var(--muted); font: .68rem/1.4 ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: .06em; text-transform: uppercase; }
.badge { display: inline-flex; border: 1px solid var(--line); padding: .18rem .42rem; color: #c7d4e0; font: .68rem/1.2 ui-monospace, SFMono-Regular, Consolas, monospace; }
.badge.observed { border-color: var(--green); color: var(--green); }
.badge.assessed { border-color: var(--amber); color: var(--amber); }
.notice { border-left: 3px solid var(--amber); background: #1d1b17; padding: 1rem 1.2rem; color: #d9d2c4; }

.filters { display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: .75rem; margin-bottom: 1rem; }
label { color: var(--muted); font-size: .76rem; }
label span { display: block; margin-bottom: .28rem; }
input, select { width: 100%; min-height: 2.8rem; color: var(--text); background: var(--panel); border: 1px solid var(--line); padding: .55rem .7rem; }
.records { display: grid; gap: .8rem; }
.record { display: grid; grid-template-columns: 9rem 1fr 12rem; gap: 1.2rem; border-bottom: 1px solid var(--line); padding: 1.2rem .4rem; }
.record[hidden] { display: none; }
.record time { font: .78rem/1.5 ui-monospace, SFMono-Regular, Consolas, monospace; color: var(--muted); }
.record p { margin: .3rem 0; color: #b9c5d1; }

.graph-layout { display: grid; grid-template-columns: minmax(0, 1fr) 20rem; gap: 1rem; }
.graph { min-height: 34rem; border: 1px solid var(--line); background-color: #0b1118; background-image: linear-gradient(rgba(120,184,244,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(120,184,244,.05) 1px, transparent 1px); background-size: 32px 32px; position: relative; overflow: hidden; }
.edge { position: absolute; height: 1px; background: #51677e; transform-origin: left center; z-index: 1; }
.node { position: absolute; z-index: 2; transform: translate(-50%, -50%); width: 7.8rem; min-height: 3.2rem; border: 1px solid var(--blue); background: var(--panel); color: var(--text); padding: .45rem; font: .68rem/1.3 ui-monospace, SFMono-Regular, Consolas, monospace; text-align: left; }
.node:hover, .node.active { outline: 2px solid var(--red); }
.node.source { border-color: var(--red); }
.node.assessment { border-color: var(--amber); }
.drawer { border: 1px solid var(--line); background: var(--panel); padding: 1.2rem; min-height: 34rem; }
.drawer dt { color: var(--muted); font: .68rem/1.5 ui-monospace, SFMono-Regular, Consolas, monospace; text-transform: uppercase; }
.drawer dd { margin: 0 0 1rem; overflow-wrap: anywhere; }

.wizard { display: grid; grid-template-columns: minmax(0, 2fr) minmax(17rem, 1fr); gap: 1rem; }
.questions, .result { border: 1px solid var(--line); background: var(--panel); padding: 1.35rem; }
.question { padding: 1.1rem 0; border-bottom: 1px solid var(--line); }
.question:last-child { border: 0; }
.choices { display: flex; gap: .5rem; margin-top: .6rem; }
.choice { min-width: 4.4rem; padding: .42rem .7rem; border: 1px solid var(--line); background: #0b1118; color: var(--text); }
.choice.active { border-color: var(--red); background: rgba(232,91,80,.14); }
.result { position: sticky; top: 1rem; height: fit-content; }
.result ol { padding-left: 1.25rem; }
.result li { margin-bottom: .75rem; }

.sources { padding-left: 1.25rem; }
.sources li { margin-bottom: .7rem; overflow-wrap: anywhere; }
.footer { border-top: 1px solid var(--line); color: var(--muted); font-size: .78rem; padding: 1.5rem max(2rem, calc((100vw - var(--sidebar) - 70rem)/2)); }

@media (max-width: 920px) {
  :root { --sidebar: 0rem; }
  .shell { padding-left: 0; }
  .sidebar { position: static; width: 100%; padding: 1.2rem; border-right: 0; border-bottom: 1px solid var(--line); }
  .brand { display: grid; grid-template-columns: 3rem 1fr; gap: .8rem; align-items: center; }
  .brand img { width: 3rem; height: 3rem; margin: 0; grid-row: span 2; }
  .brand span { margin: .3rem 0 0; }
  .nav { margin-top: 1rem; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sidebar-meta { display: none; }
  .grid, .filters { grid-template-columns: 1fr 1fr; }
  .graph-layout, .wizard { grid-template-columns: 1fr; }
  .drawer { min-height: auto; }
  .result { position: static; }
}

@media (max-width: 580px) {
  .main { padding: 1.25rem 1rem 3rem; }
  .topbar { padding: 0 1rem; }
  .grid, .filters { grid-template-columns: 1fr; }
  .record { grid-template-columns: 1fr; gap: .35rem; }
  .hero { padding: 1.5rem; }
  .graph { min-height: 38rem; }
  .node { width: 6.4rem; font-size: .6rem; }
}