/* ── Project Titan — Signal Dossier design system ─────────────────── */
:root {
  --ink-0: #090b12;        /* page ground */
  --ink-1: #0e1119;        /* raised panel */
  --ink-2: #141826;        /* card */
  --line: rgba(214, 222, 240, 0.09);
  --line-strong: rgba(214, 222, 240, 0.18);
  --text-0: #eef1f8;
  --text-1: #a8b0c4;
  --text-2: #6b7388;
  --signal: #e8a33d;       /* amber — the one accent */
  --signal-dim: rgba(232, 163, 61, 0.14);
  --good: #7fc98f;
  --warn: #d98a6a;
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Archivo", sans-serif;
  --font-mono: "Spline Sans Mono", monospace;
  --gutter: clamp(1.25rem, 4vw, 4rem);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--ink-0);
  color: var(--text-0);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
body::before { /* grain */
  content: "";
  position: fixed; inset: 0; z-index: 999; pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E");
}
a { color: inherit; }
::selection { background: var(--signal); color: var(--ink-0); }

/* type utilities */
.k {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-2);
}
.k--signal { color: var(--signal); }
h1, h2, h3 { font-family: var(--font-display); font-weight: 400; line-height: 1.12; }

/* ── shell ── */
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.9rem var(--gutter);
  background: rgba(9, 11, 18, 0.86);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.topbar__brand { display: flex; align-items: baseline; gap: 0.8rem; cursor: pointer; text-decoration: none; }
.topbar__brand strong { font-family: var(--font-display); font-weight: 500; font-size: 1.05rem; letter-spacing: 0.02em; }
.topbar nav { display: flex; gap: 1.6rem; }
.topbar nav a { text-decoration: none; transition: color 0.2s; }
.topbar nav a:hover { color: var(--signal); }

.section { padding: clamp(3.5rem, 8vw, 6.5rem) var(--gutter); border-bottom: 1px solid var(--line); }
.section__head { display: flex; align-items: baseline; gap: 1.4rem; margin-bottom: 2.6rem; flex-wrap: wrap; }
.section__head h2 { font-size: clamp(1.7rem, 3.4vw, 2.6rem); }
.section__head .k { transform: translateY(-0.2rem); }

/* ── hero ── */
.hero { padding: clamp(4.5rem, 11vw, 9rem) var(--gutter) clamp(3.5rem, 8vw, 6rem); border-bottom: 1px solid var(--line); position: relative; overflow: hidden; }
.hero::after {
  content: ""; position: absolute; right: -12%; top: -30%;
  width: 42vw; height: 42vw; border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: radial-gradient(circle at 35% 35%, var(--signal-dim), transparent 62%);
  pointer-events: none;
}
.hero h1 { font-size: clamp(2.6rem, 7vw, 5.4rem); max-width: 18ch; margin: 1.1rem 0 1.6rem; }
.hero h1 em { font-style: italic; color: var(--signal); }
.hero__sub { max-width: 58ch; color: var(--text-1); font-size: 1.02rem; }
.hero__meta { display: flex; gap: 2.6rem; flex-wrap: wrap; margin-top: 2.8rem; }
.hero__meta div strong { display: block; font-family: var(--font-display); font-size: 1.9rem; color: var(--text-0); font-weight: 400; }

/* ── ledger (ranking) ── */
.ledger { display: flex; flex-direction: column; }
.ledger__row {
  display: grid;
  grid-template-columns: 4.4rem 1fr minmax(190px, 300px) 5rem;
  gap: 1.4rem; align-items: center;
  padding: 1.35rem 0;
  border-top: 1px solid var(--line);
  text-decoration: none;
  transition: background 0.22s, padding-left 0.22s;
}
.ledger__row:hover { background: var(--ink-1); padding-left: 0.8rem; }
.ledger__rank { font-family: var(--font-display); font-size: 2.2rem; color: var(--text-2); font-weight: 300; }
.ledger__row:nth-child(-n+4) .ledger__rank { color: var(--signal); }
.ledger__names strong { display: block; font-family: var(--font-display); font-size: 1.25rem; font-weight: 400; }
.ledger__names span { color: var(--text-2); font-size: 0.85rem; }
.ledger__score { font-family: var(--font-mono); font-size: 1.1rem; text-align: right; color: var(--text-0); }
.bars { display: flex; gap: 3px; }
.bars i { height: 22px; flex: 1; background: var(--ink-2); border-radius: 1px; }
.bars i.on { background: var(--signal); opacity: 0.9; }
.bars i.on.hi { opacity: 1; }

/* ── cards / grids ── */
.grid { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.cell { background: var(--ink-1); padding: 1.6rem; }
.cell h3 { font-size: 1.05rem; margin: 0.5rem 0 0.6rem; }
.cell p { color: var(--text-1); font-size: 0.9rem; }
.cell .k { display: block; }

.list-plain { list-style: none; }
.list-plain li {
  padding: 0.7rem 0 0.7rem 1.5rem; position: relative;
  border-bottom: 1px solid var(--line); color: var(--text-1); font-size: 0.92rem;
}
.list-plain li::before { content: "—"; position: absolute; left: 0; color: var(--signal); }

/* ── detail page ── */
.detail-hero { padding: clamp(3.5rem, 8vw, 6rem) var(--gutter) 3rem; border-bottom: 1px solid var(--line); position: relative; overflow: hidden; }
.detail-hero h1 { font-size: clamp(2rem, 5vw, 3.8rem); max-width: 24ch; margin: 1rem 0 1.2rem; }
.detail-hero .verdict { max-width: 62ch; color: var(--text-1); }
.scoreband { display: flex; gap: 2.4rem; flex-wrap: wrap; margin-top: 2.4rem; }
.scoreband > div { min-width: 120px; }
.scoreband .k { margin-bottom: 0.4rem; display: block; }
.scoreband strong { font-family: var(--font-display); font-size: 1.7rem; font-weight: 400; }
.back { display: inline-block; margin-bottom: 0.6rem; text-decoration: none; color: var(--text-2); font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.18em; text-transform: uppercase; }
.back:hover { color: var(--signal); }

.render { margin: 0; }
.render img { width: 100%; display: block; border: 1px solid var(--line-strong); }
.render figcaption { padding: 0.6rem 0; }

.kv { display: grid; grid-template-columns: 160px 1fr; gap: 0.9rem 1.6rem; }
.kv dt { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--text-2); padding-top: 0.15rem; }
.kv dd { color: var(--text-1); font-size: 0.92rem; border-bottom: 1px solid var(--line); padding-bottom: 0.9rem; }

.timeline { border-left: 1px solid var(--line-strong); margin-left: 0.3rem; }
.timeline > div { padding: 0 0 1.6rem 1.6rem; position: relative; }
.timeline > div::before { content: ""; position: absolute; left: -4px; top: 0.5rem; width: 7px; height: 7px; border-radius: 50%; background: var(--signal); }
.timeline .k { display: block; margin-bottom: 0.2rem; }

table.matrix { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
table.matrix th { font-family: var(--font-mono); font-weight: 400; font-size: 0.66rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--text-2); text-align: left; padding: 0.7rem 0.9rem; border-bottom: 1px solid var(--line-strong); }
table.matrix td { padding: 0.85rem 0.9rem; border-bottom: 1px solid var(--line); color: var(--text-1); vertical-align: top; }
table.matrix td:first-child { color: var(--text-0); }
.tablewrap { overflow-x: auto; }

.refs { columns: 2; column-gap: 3rem; }
.refs li { break-inside: avoid; }
.refs a { color: var(--text-1); text-decoration: none; border-bottom: 1px solid var(--line-strong); }
.refs a:hover { color: var(--signal); border-color: var(--signal); }

.tag { display: inline-block; font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.16em; text-transform: uppercase; padding: 0.25rem 0.6rem; border: 1px solid var(--line-strong); border-radius: 2px; color: var(--text-1); margin: 0 0.4rem 0.4rem 0; }
.tag--signal { border-color: var(--signal); color: var(--signal); }

.footer { padding: 3rem var(--gutter); display: flex; justify-content: space-between; gap: 2rem; flex-wrap: wrap; color: var(--text-2); font-size: 0.8rem; }

/* entrance */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(16px); animation: rise 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) forwards; }
  @keyframes rise { to { opacity: 1; transform: none; } }
}

@media (max-width: 720px) {
  .topbar__brand .k { display: none; }
  .topbar nav { gap: 1rem; }
  .ledger__row { grid-template-columns: 2.6rem 1fr 4rem; }
  .ledger__row .bars { display: none; }
  .ledger__rank { font-size: 1.5rem; }
  .kv { grid-template-columns: 1fr; gap: 0.2rem 0; }
  .kv dt { padding-top: 0.8rem; }
  .refs { columns: 1; }
}