/* ZeroReal site — Night Studio editorial.
   Tokens first. Mono display (the agent writes in mono) + DM Sans body.
   Ember reserved for action + the one live moment. Indigo lives only
   inside the Loop demo, because there it is the product, not the theme.
   One easing, three durations. Calm by default. */
:root {
  --bg: hsl(90 6% 7%);
  --bg-elev: hsl(100 7% 10%);
  --bg-subtle: hsl(90 6% 13%);
  --fg: hsl(48 18% 89%);
  --fg-muted: hsl(50 6% 61%);
  --fg-dim: hsl(50 5% 42%);
  --accent: hsl(14 68% 62%);
  --accent-deep: hsl(14 60% 52%);
  --accent-ink: hsl(14 40% 12%);
  --accent-bright: hsl(14 82% 72%);
  --sage: hsl(105 20% 76%);
  --live: hsl(105 24% 60%);
  --warn: hsl(38 85% 62%);
  --stop: hsl(4 65% 64%);
  --border: hsl(90 5% 15%);
  --border-strong: hsl(90 5% 23%);

  --font-display: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
  --font-body: "DM Sans", ui-sans-serif, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;

  --text-xs: 12px;
  --text-sm: 13.5px;
  --text-md: 16px;
  --text-lg: 18px;
  --text-display: clamp(34px, 4.6vw, 58px);

  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --space-16: 64px;
  --space-24: 96px;

  --radius-sharp: 3px;
  --radius-sm: 7px;
  --radius-md: 11px;
  --radius-pill: 999px;

  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --dur-fast: 140ms;
  --dur-base: 320ms;
  --dur-slow: 600ms;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
::selection { background: hsl(14 55% 32%); color: #fff; }
::-webkit-scrollbar { width: 11px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: hsl(90 5% 24%); border-radius: 8px; border: 3px solid var(--bg); }
img { max-width: 100%; }
a { color: inherit; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

.skip {
  position: absolute; left: 12px; top: -48px; z-index: 100;
  background: var(--bg-elev); color: var(--fg); padding: 10px 16px;
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  text-decoration: none; transition: top var(--dur-fast) var(--ease);
}
.skip:focus { top: 12px; }

.wrap { width: min(1180px, 100% - 40px); margin: 0 auto; }
.wrap.narrow .install, .wrap.narrow .faq { max-width: 780px; }

/* ── nav ── */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: hsl(90 6% 7% / 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; gap: 20px; height: 66px; }
.brand { display: flex; align-items: center; gap: 9px; text-decoration: none; font-weight: 700; font-size: 16px; }
.brand img { border-radius: 6px; }
.ver { font-family: var(--font-mono); font-size: 11px; color: var(--fg-muted); border: 1px solid var(--border); padding: 1px 7px; border-radius: var(--radius-sharp); }
.links { display: flex; gap: 2px; margin-left: 10px; }
.links a { text-decoration: none; color: var(--fg-muted); font-size: 14px; font-weight: 500; padding: 8px 12px; border-radius: var(--radius-sm); transition: color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease); }
.links a:hover { color: var(--fg); background: hsl(48 12% 90% / 0.06); }
.nav-cta { margin-left: auto; display: flex; gap: 10px; align-items: center; }
.burger { display: none; margin-left: auto; background: none; border: 1px solid var(--border); border-radius: var(--radius-sm); width: 42px; height: 42px; cursor: pointer; flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.burger span { display: block; width: 18px; height: 2px; background: var(--fg); transition: transform 0.2s var(--ease), opacity 0.2s; }
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── buttons: primary / ghost / link ── */
.btn { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; font-weight: 600; font-size: 14px; padding: 10px 18px; border-radius: var(--radius-sm); border: 1px solid transparent; cursor: pointer; transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease); white-space: nowrap; font-family: var(--font-body); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: hsl(14 72% 68%); }
.btn-ghost { background: transparent; color: var(--fg); border-color: var(--border-strong); }
.btn-ghost:hover { border-color: var(--fg-dim); background: hsl(48 12% 90% / 0.04); }
.btn-link { color: var(--fg-muted); text-decoration: none; font-weight: 600; font-size: 14.5px; padding: 10px 4px; }
.btn-link:hover { color: var(--fg); }
.btn-lg { padding: 13px 24px; font-size: 15px; }

/* ── hero: asymmetric 5/7 ── */
.hero { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--space-12); align-items: start; padding: var(--space-24) 0 var(--space-16); }
.eyebrow { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--fg-muted); letter-spacing: 0.4px; margin: 0 0 var(--space-4); }
.eyebrow::before { content: "● "; color: var(--live); }
h1 {
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -1px;
  margin: 0 0 var(--space-4);
}
h1 span { color: var(--accent); }
.lede { font-size: var(--text-lg); color: var(--fg-muted); margin: 0 0 var(--space-6); max-width: 30em; }
.hero-ctas { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-bottom: var(--space-8); }
.facts { display: flex; gap: var(--space-8); margin: 0; padding: var(--space-4) 0 0; border-top: 1px solid var(--border); }
.facts div { display: flex; flex-direction: column; }
.facts dt { font-family: var(--font-display); font-size: 26px; font-weight: 800; color: var(--fg); }
.facts dd { margin: 0; font-size: var(--text-xs); color: var(--fg-dim); }

/* ── THE LOOP (signature): a turn that plays itself ── */
.hero-demo { min-width: 0; }
.demo-caption { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--fg-dim); margin: 0 0 var(--space-3); }
.replay { font: inherit; color: var(--accent-bright); background: none; border: none; cursor: pointer; padding: 2px 4px; min-height: 32px; }
.replay:hover { text-decoration: underline; }
.turn { border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--bg-elev); padding: var(--space-4); display: flex; flex-direction: column; gap: var(--space-3); }
.t-row { opacity: 0.18; transition: opacity var(--dur-slow) var(--ease); }
.t-row.lit { opacity: 1; }
.bubble {
  margin: 0 0 0 auto; width: fit-content; max-width: 88%;
  background: hsl(234 45% 22%); border: 1px solid hsl(234 50% 34%);
  border-radius: var(--radius-md); border-bottom-right-radius: var(--radius-sharp);
  padding: 9px 14px; font-size: 14px;
}
.zr-bar { display: flex; align-items: center; gap: 9px; font-size: 12.5px; padding: 8px 12px; background: hsl(90 8% 9%); border: 1px solid var(--border-strong); border-radius: var(--radius-sm); }
.zr-bar .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--live); flex: none; }
.zr-bar .st { flex: 1; color: var(--fg-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.zr-bar .stop { color: var(--stop); font-weight: 700; font-size: 13px; }
.zr-chip { border: 1px solid var(--border-strong); border-radius: var(--radius-sm); overflow: hidden; background: hsl(48 12% 90% / 0.015); }
.chip-head { display: flex; align-items: baseline; gap: 9px; padding: 8px 12px; font-family: var(--font-mono); font-size: 12.5px; border-bottom: 1px solid var(--border); }
.chip-head .tick { color: var(--live); font-weight: 700; }
.chip-head b { font-weight: 700; }
.chip-head .meta { color: var(--fg-dim); font-size: 11.5px; margin-left: auto; white-space: nowrap; }
.chip-body { margin: 0; padding: 10px 12px; font-family: var(--font-mono); font-size: 12.5px; line-height: 1.6; color: hsl(48 10% 80%); white-space: pre-wrap; }
/* running state: the product's own shimmer language */
.zr-chip.run .chip-body { color: transparent; position: relative; min-height: 66px; }
.zr-chip.run .chip-body::after {
  content: ""; position: absolute; inset: 10px 12px;
  background: linear-gradient(90deg, transparent 0%, hsl(48 12% 90% / 0.09) 50%, transparent 100%);
  background-size: 210px 100%; background-repeat: repeat;
  animation: sweep 1.4s linear infinite;
}
@keyframes sweep { from { background-position: 0 0; } to { background-position: 210px 0; } }
.verdict { margin: 0; font-size: 14.5px; color: var(--fg); border-left: 2px solid var(--live); padding-left: var(--space-3); }

/* ── AI strip ── */
.strip { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: var(--space-4) 0; }
.strip-label { font-family: var(--font-mono); font-size: 11px; letter-spacing: 1px; text-transform: uppercase; color: var(--fg-dim); margin: 0 0 var(--space-3); }
.ai-strip { list-style: none; display: flex; flex-wrap: wrap; gap: var(--space-2); margin: 0; padding: 0; }
.ai-strip li { font-size: 13px; font-weight: 500; color: var(--fg-muted); border: 1px solid var(--border); padding: 6px 13px; border-radius: var(--radius-pill); }
.ai-strip li.rec { color: var(--fg); border-color: hsl(105 18% 38%); }
.ai-strip li em { font-style: normal; font-size: 10px; color: var(--sage); margin-left: 5px; text-transform: uppercase; letter-spacing: 0.5px; }

/* ── sections ── */
.section { padding: var(--space-16) 0 var(--space-4); }
.kicker { display: flex; align-items: center; gap: 10px; font-family: var(--font-mono); font-size: 12px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: var(--fg-dim); margin: 0 0 var(--space-3); }
.kicker span { color: var(--sage); border: 1px solid hsl(105 18% 32%); border-radius: var(--radius-sharp); padding: 1px 7px; letter-spacing: 0; }
h2 { font-family: var(--font-display); font-size: clamp(24px, 3vw, 34px); font-weight: 800; letter-spacing: -0.5px; line-height: 1.2; margin: 0 0 var(--space-3); max-width: 22em; }
.sub { color: var(--fg-muted); font-size: var(--text-md); max-width: 46em; margin: 0 0 var(--space-8); }
.sub code { font-family: var(--font-mono); font-size: 0.86em; background: hsl(48 12% 90% / 0.06); padding: 1px 6px; border-radius: var(--radius-sharp); color: var(--fg); }

/* ledger (anatomy) — open rows, not cards */
.ledger { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--border-strong); }
.ledger li { display: grid; grid-template-columns: 56px 1fr auto; gap: var(--space-4); align-items: baseline; padding: var(--space-4) 0; border-bottom: 1px solid var(--border); }
.ledger .ln { font-family: var(--font-display); font-weight: 800; color: var(--fg-dim); }
.ledger h3 { margin: 0 0 4px; font-size: 16.5px; }
.ledger p { margin: 0; color: var(--fg-muted); font-size: 14.5px; max-width: 52em; }
.ledger p code { font-family: var(--font-mono); font-size: 0.86em; background: hsl(48 12% 90% / 0.06); padding: 1px 6px; border-radius: var(--radius-sharp); color: var(--fg); }
.ledger .who { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--sage); border: 1px solid hsl(105 18% 32%); padding: 3px 10px; border-radius: var(--radius-pill); white-space: nowrap; }

/* arsenal index — dense, scannable */
.index { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-8); border-top: 1px solid var(--border-strong); padding-top: var(--space-4); }
.index h3 { font-family: var(--font-display); font-size: 13px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--fg); margin: 0 0 var(--space-3); }
.index ul { list-style: none; margin: 0; padding: 0; }
.index li { padding: 9px 0; border-bottom: 1px solid var(--border); display: flex; flex-direction: column; gap: 1px; }
.index li code { font-family: var(--font-mono); font-size: 13.5px; color: var(--fg); }
.index li span { font-size: 13px; color: var(--fg-dim); }
.morenote { margin-top: var(--space-6); color: var(--fg-dim); font-size: 14px; }
.morenote code { font-family: var(--font-mono); font-size: 0.86em; background: hsl(48 12% 90% / 0.06); padding: 1px 6px; border-radius: var(--radius-sharp); color: var(--fg); }

/* cockpits table */
.tablewrap { border: 1px solid var(--border); border-radius: var(--radius-md); overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 560px; }
th { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--fg-dim); text-align: left; padding: 12px 18px; border-bottom: 1px solid var(--border-strong); background: var(--bg-elev); }
td { padding: 13px 18px; border-bottom: 1px solid var(--border); vertical-align: top; }
tr:last-child td { border-bottom: none; }
tbody tr { transition: background var(--dur-fast) var(--ease); }
tbody tr:hover { background: hsl(48 12% 90% / 0.025); }
td:first-child { font-weight: 600; white-space: nowrap; }
td:first-child em { font-style: normal; font-size: 10px; color: var(--sage); text-transform: uppercase; letter-spacing: 0.5px; margin-left: 6px; }
tr.pick td:first-child { color: var(--sage); }
td code { font-family: var(--font-mono); font-size: 12.5px; color: var(--fg-muted); }
td:last-child { color: var(--fg-muted); }

/* install — genuinely sequential, reading measure */
.install { list-style: none; margin: 0; padding: 0; counter-reset: inst; display: flex; flex-direction: column; }
.install li { counter-increment: inst; position: relative; padding: var(--space-4) 0 var(--space-4) 56px; border-bottom: 1px solid var(--border); }
.install li:first-child { border-top: 1px solid var(--border-strong); }
.install li::before { content: counter(inst, decimal-leading-zero); position: absolute; left: 0; top: 22px; font-family: var(--font-display); font-weight: 800; font-size: 14px; color: var(--fg-dim); }
.install h3 { margin: 0 0 4px; font-size: 16.5px; }
.install p { margin: 0; color: var(--fg-muted); font-size: 15px; }
.install p code, .faq code { font-family: var(--font-mono); font-size: 0.86em; background: hsl(48 12% 90% / 0.06); padding: 1px 6px; border-radius: var(--radius-sharp); color: var(--fg); }
.code { display: flex; align-items: center; gap: 10px; background: hsl(0 0% 0% / 0.4); border: 1px solid var(--border-strong); border-radius: var(--radius-sharp); padding: 10px 10px 10px 16px; margin-top: 10px; }
.code code { flex: 1; font-family: var(--font-mono); font-size: 13px; color: var(--fg); white-space: nowrap; overflow-x: auto; }
.code button { flex: none; font: inherit; background: transparent; color: var(--fg-muted); border: 1px solid var(--border-strong); border-radius: var(--radius-sharp); padding: 7px 14px; font-size: 12.5px; font-weight: 600; cursor: pointer; min-height: 40px; }
.code button:hover { color: var(--fg); border-color: var(--fg-dim); }

/* faq */
.faq { display: flex; flex-direction: column; }
.faq details { border-bottom: 1px solid var(--border); }
.faq details:first-child { border-top: 1px solid var(--border-strong); }
.faq summary { cursor: pointer; padding: 16px 4px; font-weight: 600; font-size: 15.5px; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 48px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--font-display); font-size: 18px; color: var(--fg-dim); flex: none; transition: transform var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); color: var(--sage); }
.faq details p { margin: 0; padding: 0 4px 18px; color: var(--fg-muted); font-size: 15px; max-width: 60em; }

/* close — one action */
.close { padding: var(--space-24) 0; text-align: left; }
.close h2 { margin-bottom: var(--space-6); }

/* footer — slim, resolves secondary nav + legal */
footer { border-top: 1px solid var(--border); padding: var(--space-4) 0 var(--space-6); }
.foot { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.foot nav { display: flex; gap: 4px; }
.foot nav a { color: var(--fg-muted); text-decoration: none; font-size: 13.5px; padding: 6px 10px; border-radius: var(--radius-sm); }
.foot nav a:hover { color: var(--fg); }
.foot p { margin: 0 0 0 auto; font-size: 12.5px; color: var(--fg-dim); }
.foot p a { color: var(--fg-muted); }
.foot p a:hover { color: var(--fg); }

/* reveal — single motion language */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity var(--dur-base) var(--ease), transform var(--dur-base) var(--ease); transition-delay: var(--d, 0s); }
.reveal.in { opacity: 1; transform: none; }

/* ── tablet ── */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; gap: var(--space-8); padding-top: var(--space-16); }
  .hero-demo { max-width: 660px; }
  .index { grid-template-columns: 1fr 1fr; }
}

/* ── nav collapses ── */
@media (max-width: 860px) {
  .links { display: none; position: absolute; top: 66px; left: 0; right: 0; flex-direction: column; gap: 2px; background: hsl(90 6% 7% / 0.98); border-bottom: 1px solid var(--border); padding: 10px 20px 16px; }
  .links.open { display: flex; }
  .links a { padding: 12px; font-size: 15px; }
  .burger { display: flex; }
  .nav-cta { margin-left: 0; }
  .nav-cta .btn-ghost { display: none; }
  .nav-inner { gap: 12px; }
}

/* ── mobile: conceived, not shrunk ── */
@media (max-width: 720px) {
  .hero { padding-top: var(--space-12); }
  .facts { gap: var(--space-4); }
  .facts dt { font-size: 22px; }
  .ledger li { grid-template-columns: 40px 1fr; }
  .ledger .who { grid-column: 2; justify-self: start; }
  .index { grid-template-columns: 1fr; gap: var(--space-6); }
  .hero-ctas .btn { flex: 1; justify-content: center; }
  .section { padding: var(--space-12) 0 var(--space-2); }
  .close { padding: var(--space-16) 0; }
  .foot p { margin: 0; flex-basis: 100%; }
}
@media (max-width: 420px) {
  h1 { letter-spacing: -0.5px; }
}

/* ── ultrawide: use the space ── */
@media (min-width: 1600px) {
  .wrap { width: min(1320px, 100% - 80px); }
}

/* ── reduced motion: information stays, displacement goes ── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .zr-chip.run .chip-body::after { animation: none; }
  * { transition-duration: 0.01ms !important; }
}