:root {
  --bg: #070b12;
  --bg-raise: #101826;
  --line: rgba(190, 214, 240, 0.16);
  --ink: #f4f7fb;
  --muted: #b7c3d4;
  --dim: #8ea0b8;
  --cyan: #39c6d6;
  --blue: #3e5c76;
  --amber: #c45c26;
  --violet: #5d3fd3;
  --green: #1f9d6b;
  --red: #9e2a2b;
  --display: "Arial Narrow", "Segoe UI", system-ui, sans-serif;
  --body: "Segoe UI", system-ui, sans-serif;
  --max: 1120px;
  --pad: clamp(16px, 4vw, 40px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(900px 420px at 50% -10%, rgba(57, 198, 214, 0.12), transparent 60%),
    var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 1.02rem;
  line-height: 1.55;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
.skip {
  position: absolute;
  left: 12px;
  top: -40px;
  background: var(--ink);
  color: #081018;
  padding: 8px 12px;
  z-index: 20;
}
.skip:focus { top: 12px; }

.wrap { width: min(var(--max), calc(100% - var(--pad) * 2)); margin-inline: auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(7, 11, 18, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}
.bar {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  min-width: max-content;
}
.brand svg { width: 28px; height: 28px; color: var(--ink); }
.brand strong { display: block; letter-spacing: 0.08em; font-size: 0.82rem; color: var(--ink); }
.brand span span { display: block; color: var(--dim); font-size: 0.68rem; letter-spacing: 0.12em; }
.nav { display: flex; gap: 16px; margin-left: auto; align-items: center; }
.nav a { color: var(--muted); text-decoration: none; font-size: 0.92rem; }
.nav a:hover { color: var(--ink); }
.nav-cta { display: none; font-weight: 650; }
.nav-toggle {
  display: none;
  margin-left: auto;
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
}
.actions { display: flex; gap: 8px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 650;
  border: 1px solid transparent;
}
.btn-primary { background: #2f7cf6; color: white; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--muted); }

.hero { padding: 48px 0 20px; text-align: center; }
.kicker {
  color: var(--cyan);
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  margin: 0 0 12px;
}
h1 {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.03em;
  font-size: clamp(2.6rem, 7vw, 5.4rem);
  line-height: 0.92;
  margin: 0;
}
h1 em { font-style: normal; color: #7eb6ff; }
.lede {
  max-width: 68ch;
  margin: 18px auto 0;
  color: var(--muted);
}
.cta-row { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; margin-top: 22px; }
.fine { color: var(--dim); font-size: 0.92rem; }

.lineup {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  margin-top: 36px;
}
.dummy {
  background: linear-gradient(180deg, rgba(255,255,255,0.03), transparent 30%), var(--bg-raise);
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: 12px;
  overflow: hidden;
  text-align: left;
}
.dummy img { width: 100%; aspect-ratio: 3/4; object-fit: cover; object-position: center 18%; }
.dummy header, .dummy .copy { padding: 12px 12px 0; }
.dummy h2, .dummy h3 { margin: 0; font-size: 1rem; letter-spacing: 0.08em; color: var(--accent); }
.dummy p { color: var(--muted); font-size: 0.92rem; margin: 8px 0 14px; }
.state {
  display: flex;
  gap: 8px;
  align-items: center;
  color: var(--ink);
  font-size: 0.85rem;
}
.state i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

.band { padding: 56px 0; }
.band h2 {
  font-family: var(--display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: -0.03em;
  margin: 0 0 10px;
}
.principles, .steps, .cases, .report-grid, .states {
  display: grid;
  gap: 12px;
}
.principles { grid-template-columns: repeat(5, 1fr); margin-top: 22px; }
.card {
  background: var(--bg-raise);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
}
.card h3 { margin: 0 0 6px; font-size: 1rem; }
.card p { margin: 0; color: var(--muted); }
.steps { grid-template-columns: repeat(5, 1fr); margin-top: 22px; }
.step { position: relative; }
.step b {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  margin-bottom: 10px;
}
.split { display: grid; grid-template-columns: 1.1fr 1.4fr; gap: 28px; align-items: start; }
.cases { grid-template-columns: repeat(3, 1fr); }
.report-grid { grid-template-columns: 1.3fr 0.7fr; }
.receipt {
  font-family: ui-monospace, "Cascadia Mono", monospace;
  font-size: 0.86rem;
}
.receipt dt { color: var(--dim); margin-top: 10px; }
.receipt dd { margin: 0; }
.tag {
  display: inline-block;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
}
.tag-unresolved { color: #f0d48a; border-color: #f0d48a; }
.tag-example { color: var(--cyan); border-color: var(--cyan); }
.states { grid-template-columns: repeat(3, 1fr); }
.state-row {
  display: flex;
  gap: 12px;
  align-items: center;
}
.state-row img { width: 64px; height: 64px; object-fit: cover; border-radius: 8px; }
.final {
  text-align: center;
  padding: 72px 0;
  border-top: 1px solid var(--line);
}
.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  color: var(--muted);
}
.foot {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.foot nav { display: flex; gap: 14px; flex-wrap: wrap; }
.foot a { color: var(--muted); }
.note { color: var(--dim); font-size: 0.92rem; }

.page { padding: 36px 0 64px; }
.page h1 { font-size: clamp(2rem, 5vw, 3.4rem); text-align: left; }
.prose { max-width: 72ch; }
.prose h2 { margin-top: 1.6em; }
.prose li { margin: 0.3em 0; }

@media (max-width: 980px) {
  .lineup, .principles, .steps { grid-template-columns: repeat(2, 1fr); }
  .split, .report-grid, .cases, .states { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #0c121c;
    border-bottom: 1px solid var(--line);
    padding: 12px var(--pad) 16px;
    flex-direction: column;
    align-items: flex-start;
  }
  .nav.open { display: flex; }
  .lineup { grid-template-columns: 1fr 1fr; }
  .actions { display: none; }
  .nav-cta { display: inline; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}