/* Focal Plane — Nocturne tokens, Ledger layout.
   Token values come from the Nocturne design system; do not hard-code new ones. */

:root {
  --color-bg: #161826;
  --color-surface: #232532;
  --color-text: #e9e9ed;
  --color-accent: #9184d9;
  --color-accent-300: #d2cefd;
  --color-accent-900: #2b2741;
  --color-neutral-300: #cfd3e5;
  --color-neutral-400: #b2b6ca;
  --color-neutral-500: #9397ab;
  --color-neutral-800: #3f424d;
  --color-section: #262a60;
  --color-divider: rgba(233, 233, 237, 0.16);

  --font-heading: "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: ui-monospace, Menlo, monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;

  --gutter: 56px;
  --measure: 1120px;
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.08;
  margin: 0;
}

a { color: var(--color-accent-300); text-decoration: none; text-underline-offset: 3px; }
a:hover { color: var(--color-text); text-decoration: underline; }

:focus { outline: none; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
::selection { background: rgba(145, 132, 217, 0.3); }

main { max-width: var(--measure); margin: 0 auto; }

/* Rules fade to transparent 48px from each end — Nocturne's edge treatment. */
.fade-rule {
  height: 1px; border: 0; margin: 0;
  background: linear-gradient(to right, transparent, var(--color-divider) 48px,
    var(--color-divider) calc(100% - 48px), transparent);
}

/* — header — */
.nav {
  max-width: var(--measure); margin: 0 auto;
  display: flex; align-items: center; gap: 22px;
  padding: 17px var(--gutter);
  background: linear-gradient(to right, transparent, var(--color-divider) 48px,
    var(--color-divider) calc(100% - 48px), transparent) bottom / 100% 1px no-repeat;
}
.nav-brand {
  font-family: var(--font-heading); font-weight: 500; font-size: 17px;
  letter-spacing: -0.01em; color: var(--color-text); margin-right: auto;
}
.nav-brand:hover { text-decoration: none; color: var(--color-accent-300); }
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.04em;
  color: var(--color-neutral-400);
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--color-text); text-decoration: none; }
.nav-links a.is-accent { color: var(--color-accent-300); }

/* — hero — */
.hero { padding: 84px var(--gutter) 64px; }
.hero.is-short { padding-bottom: 48px; }
.hero h1 { font-size: 64px; line-height: 1.04; letter-spacing: -0.035em; max-width: 720px; margin: 0 0 20px; text-wrap: pretty; }
.lede { max-width: 540px; font-size: 17px; line-height: 1.6; color: var(--color-neutral-300); margin: 0 0 30px; text-wrap: pretty; }
.hero-actions { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; }
.mono-note { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em; color: var(--color-neutral-500); margin: 0 0 26px; }
.hero-actions .mono-note { margin: 0; }

/* — buttons: outlined, never filled — */
.btn {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  font-family: var(--font-heading); font-weight: 500; font-size: 14px;
  color: var(--color-accent-300); background: transparent;
  border: 1px solid var(--color-accent); border-radius: var(--radius-md);
  padding: 11px 20px;
}
.btn:hover { background: rgba(145, 132, 217, 0.12); color: var(--color-accent-300); text-decoration: none; }
.btn:active { background: rgba(145, 132, 217, 0.2); }

/* — ledger sections — */
.band { padding: 0 var(--gutter); }
.band + .band, .stats + .band { margin-top: 56px; }
.band-cta { margin-top: 40px; }

.sec-head {
  display: flex; align-items: baseline; gap: 14px; padding-bottom: 11px;
  background: linear-gradient(to right, var(--color-divider),
    var(--color-divider) calc(100% - 48px), transparent) bottom / 100% 1px no-repeat;
}
.sec-mark { width: 16px; height: 2px; background: var(--color-accent); border-radius: 2px; }
.sec-head h2 {
  font-family: var(--font-mono); font-weight: 400; font-size: 12px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--color-neutral-500);
}

.ledger-row {
  display: grid; grid-template-columns: 34px 230px 1fr; gap: 22px;
  padding: 20px 0;
  background: linear-gradient(to right, var(--color-divider),
    var(--color-divider) calc(100% - 48px), transparent) bottom / 100% 1px no-repeat;
}
.ledger-row:last-child { background: none; }
.ledger-row h3 { font-size: 19px; letter-spacing: -0.015em; }
.ledger-row p { margin: 0; font-size: 14px; color: var(--color-neutral-300); max-width: 520px; }
.ledger-num { font-family: var(--font-mono); font-size: 12px; line-height: 1.6; color: var(--color-accent-300); }
a.ledger-row { color: inherit; }
a.ledger-row:hover { text-decoration: none; background-color: rgba(233, 233, 237, 0.03); }
a.ledger-row:hover h3 { color: var(--color-accent-300); }

/* — the one saturated field on the page — */
.stats {
  margin-top: 56px;
  background: linear-gradient(160deg, var(--color-section), #1d2049);
  padding: 44px var(--gutter);
  display: flex; flex-wrap: wrap; gap: 56px;
}
.stat-figure {
  font-family: var(--font-heading); font-weight: 500; font-size: 36px;
  line-height: 1; letter-spacing: -0.03em; font-variant-numeric: tabular-nums;
}
.stat-label { font-family: var(--font-mono); font-size: 11px; line-height: 1.4; color: rgba(207, 211, 229, 0.7); margin-top: 9px; }

/* — tags — */
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  font-size: 11px; padding: 4px 10px; border-radius: 6px;
  background: var(--color-accent-900); color: var(--color-accent-300);
}

/* — prose — */
.prose { max-width: 680px; padding: 0 var(--gutter); }
.prose p, .prose li, .prose-p { font-size: 16px; line-height: 1.65; color: var(--color-neutral-300); max-width: 640px; }
.prose h1 { font-size: 40px; letter-spacing: -0.035em; margin: 0 0 20px; text-wrap: pretty; }
.prose h2 { font-size: 24px; margin: 34px 0 10px; }
.prose blockquote {
  margin: 24px 0; padding-left: 18px;
  border-left: 1px solid var(--color-accent); color: var(--color-neutral-400);
}
.prose code {
  font-family: var(--font-mono); font-size: 13px;
  background: var(--color-surface); padding: 2px 5px; border-radius: var(--radius-sm);
}
.prose pre {
  background: var(--color-surface); border-radius: var(--radius-lg);
  box-shadow: 0 0 0 1px var(--color-neutral-800);
  padding: 16px; overflow-x: auto;
}
.prose pre code { background: none; padding: 0; }
.post-meta { font-family: var(--font-mono); font-size: 12px; color: var(--color-neutral-500); margin: 0 0 12px; }
.prose-back { padding: 0 var(--gutter); margin: 22px 0 0; font-size: 14px; }
.prose + .fade-rule { margin-top: 56px; }

/* — contact — */
.contact { padding: 56px var(--gutter) 72px; max-width: 620px; }
.contact-title { font-size: 34px; line-height: 1.08; margin: 0 0 12px; }
.contact .lede { margin-bottom: 24px; }

.form { display: flex; flex-direction: column; gap: 11px; max-width: 560px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 11px; }
.field label {
  display: block; font-family: var(--font-mono); font-size: 11px;
  margin-bottom: 6px; color: var(--color-neutral-500);
}
.input {
  width: 100%; min-height: 36px; padding: 6px 10px;
  font: inherit; font-size: 14px; color: var(--color-text);
  caret-color: var(--color-accent);
  background: var(--color-surface);
  border: 1px solid var(--color-divider); border-radius: var(--radius-md);
}
.input:hover { border-color: var(--color-neutral-500); }
.input:focus-visible { border-color: var(--color-accent); outline-offset: 0; }
textarea.input { resize: vertical; min-height: 100px; }
.form .btn { align-self: flex-start; }
.form input[type="hidden"] { display: none; }

/* — footer — */
.footer {
  max-width: var(--measure); margin: 56px auto 0;
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
  padding: 20px var(--gutter);
  font-family: var(--font-mono); font-size: 12px; color: var(--color-neutral-500);
  background: linear-gradient(to right, transparent, var(--color-divider) 48px,
    var(--color-divider) calc(100% - 48px), transparent) top / 100% 1px no-repeat;
}
.footer-legal { margin-right: auto; }
.footer a { color: inherit; }
.footer a:hover { color: var(--color-text); text-decoration: none; }

@media (max-width: 760px) {
  :root { --gutter: 22px; }
  .nav, .footer, .sec-head, .ledger-row, .stats {
    background-image: linear-gradient(to right, transparent, var(--color-divider) 16px,
      var(--color-divider) calc(100% - 16px), transparent);
  }
  .stats { background-image: linear-gradient(160deg, var(--color-section), #1d2049); gap: 28px; }
  .hero { padding-top: 52px; }
  .hero h1 { font-size: 40px; }
  .ledger-row { grid-template-columns: 28px 1fr; row-gap: 8px; }
  .ledger-row p { grid-column: 2; }
  .form-row { grid-template-columns: 1fr; }
  .stat { min-width: 130px; }
}