/* Veri website — hand-authored, no build step (DEC-033).
   Palettes ported from the app (packages/ui/renderer/styles.css):
   dark is the default; light rides prefers-color-scheme (WO-065).
   Color literals live only in the two token blocks. */

:root {
  color-scheme: dark;
  --bg: #0F0F11;
  --panel: #131316;
  --card: #151519;
  --card-2: #18181D;
  --hair: #1E1E24;
  --card-border: #1F1F24;
  --card-border-2: #24242B;
  --int-border: #26262C;
  --hover-border: #2E2E36;
  --text: #E7E4DE;
  --body-text: #C9C6CF;
  --secondary: #A09DA6;
  --muted: #8B8893;
  --faint: #86838F;
  --on-accent: #141414;
  --ember: #E8703A;
  --ember-hov: #F0854F;
  --link-hover: #F49463;
  --green: #7FAF8A;
  --amber: #D9A03F;
  --t-req: #7EA6C4;
  --t-dec: #CFA83D;
  --t-src: #908BA8;
  --t-wf: #7FAF8A;
  --ember-tint: rgba(232, 112, 58, 0.09);
  --amber-tint: rgba(217, 160, 63, 0.06);
  --amber-border: #3A3020;
  --focus-ring: rgba(232, 112, 58, 0.4);
  --shot-shadow: 0 24px 64px rgba(0, 0, 0, 0.45);
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}

@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --bg: #F2F1ED;
    --panel: #EDEBE6;
    --card: #F8F7F4;
    --card-2: #FBFAF8;
    --hair: #E5E3DD;
    --card-border: #E0DED7;
    --card-border-2: #D8D5CD;
    --int-border: #D0CDC4;
    --hover-border: #BEBBB1;
    --text: #232128;
    --body-text: #3B3941;
    --secondary: #5F5C67;
    --muted: #6B6873;
    --faint: #6B6873;
    --on-accent: #FFFFFF;
    --ember: #B54A18;
    --ember-hov: #A04214;
    --link-hover: #9E3F12;
    --green: #3E7350;
    --amber: #82630C;
    --t-req: #3E6E93;
    --t-dec: #82630C;
    --t-src: #655F80;
    --t-wf: #3E7350;
    --ember-tint: rgba(181, 74, 24, 0.10);
    --amber-tint: rgba(130, 99, 12, 0.07);
    --amber-border: #D0C6A9;
    --focus-ring: rgba(181, 74, 24, 0.45);
    --shot-shadow: 0 24px 64px rgba(35, 33, 40, 0.14);
  }
}

/* Type scale: 12 / 14 / 16 / 18 / 21 / 28 + the clamped display size. */

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--body-text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
}

a { color: var(--ember); text-decoration: none; }
a:hover { color: var(--link-hover); }

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--ember);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ember);
  color: var(--on-accent);
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
  z-index: 10;
}

.skip:focus { left: 0; color: var(--on-accent); }

code, pre { font-family: var(--mono); font-size: 0.86em; }

code {
  background: var(--card-2);
  border: 1px solid var(--card-border);
  border-radius: 4px;
  padding: 1px 5px;
  color: var(--text);
}

pre {
  background: var(--card);
  border: 1px solid var(--card-border-2);
  border-radius: 8px;
  padding: 14px 16px;
  overflow-x: auto;
  line-height: 1.55;
}

pre code { background: none; border: none; padding: 0; white-space: pre; }

img { max-width: 100%; height: auto; }

/* ---- header / footer ---- */

.top {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2px 6px;
  max-width: 1060px;
  margin: 0 auto;
  padding: 14px 16px;
}

.top-wordmark {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.02em;
  color: var(--text);
  margin-right: auto;
  padding: 8px 8px 8px 0;
}

.top-wordmark .v { color: var(--ember); }

.top a.nav {
  color: var(--secondary);
  font-size: 14px;
  padding: 10px;
  border-radius: 6px;
}

.top a.nav:hover { color: var(--text); }
.top a.nav.here { color: var(--text); }

.top .top-dl {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  border: 1px solid var(--int-border);
  border-radius: 8px;
  padding: 7px 14px;
  margin-left: 6px;
}

.top .top-dl:hover { border-color: var(--hover-border); color: var(--text); }

/* Docs sub-navigation strip (docs pages only). */

.docs-strip {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 16px;
  border-bottom: 1px solid var(--hair);
  display: flex;
  gap: 4px;
  overflow-x: auto;
}

.docs-strip a {
  color: var(--muted);
  font-size: 14px;
  padding: 8px 10px 10px;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.docs-strip a:hover { color: var(--text); }
.docs-strip a.here { color: var(--text); border-bottom-color: var(--ember); }

.foot {
  max-width: 1060px;
  margin: 72px auto 0;
  padding: 26px 16px 40px;
  border-top: 1px solid var(--hair);
  color: var(--muted);
  font-size: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
}

.foot a { color: var(--muted); text-decoration: underline; text-underline-offset: 3px; }
.foot a:hover { color: var(--text); }

/* ---- shared section scaffolding ---- */

.wrap {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 16px;
}

section.band { margin: 88px auto 0; }

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--faint);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.band h2 {
  font-size: 28px;
  line-height: 1.25;
  color: var(--text);
  margin: 0 0 10px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.band .lead {
  max-width: 620px;
  font-size: 17px;
  color: var(--secondary);
  margin: 0 0 30px;
}

.band .lead a { text-decoration: underline; text-underline-offset: 3px; }

/* Two-column: copy beside a product crop. */

.split {
  display: grid;
  grid-template-columns: minmax(280px, 5fr) 7fr;
  gap: 36px;
  align-items: start;
}

.split.rev { grid-template-columns: 7fr minmax(280px, 5fr); }

.split .copy p { color: var(--secondary); font-size: 16px; margin: 0 0 14px; }
.split .copy p strong { color: var(--text); font-weight: 600; }

.principle {
  font-size: 18px;
  color: var(--text);
  font-weight: 600;
  border-left: 3px solid var(--ember);
  padding-left: 14px;
  margin: 18px 0 0;
}

.shot-card {
  background: var(--panel);
  border: 1px solid var(--card-border-2);
  border-radius: 12px;
  padding: 10px;
}

.shot-card img { display: block; border-radius: 6px; }

.shot-note {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
  padding: 10px 4px 2px;
}

/* ---- hero ---- */

.hero {
  max-width: 1060px;
  margin: 0 auto;
  padding: 64px 16px 0;
  text-align: center;
}

.hero h1 {
  font-size: clamp(30px, 5.4vw, 46px);
  line-height: 1.12;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--text);
  max-width: 720px;
  margin: 0 auto 18px;
}

.hero .oneliner {
  font-size: 18px;
  line-height: 1.6;
  color: var(--secondary);
  max-width: 640px;
  margin: 0 auto 30px;
}

.hero .oneliner strong { color: var(--body-text); font-weight: 600; }

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  align-items: center;
}

.btn {
  display: inline-block;
  font-weight: 600;
  font-size: 16px;
  padding: 12px 24px;
  border-radius: 8px;
}

.btn-primary { background: var(--ember); color: var(--on-accent); }
.btn-primary:hover { background: var(--ember-hov); color: var(--on-accent); }

.btn-secondary {
  color: var(--text);
  border: 1px solid var(--int-border);
  background: transparent;
}

.btn-secondary:hover { border-color: var(--hover-border); color: var(--text); }

.cta-quickstart { font-size: 16px; text-decoration: underline; text-underline-offset: 3px; padding: 12px 4px; }

.dl-sub {
  margin-top: 14px;
  font-size: 14px;
  color: var(--muted);
  font-family: var(--mono);
}
.dl-sub a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
.dl-sub a:hover { color: var(--text); }

.hero-shot {
  margin: 44px auto 0;
  max-width: 1060px;
  padding: 0 16px;
}

.hero-shot .shot-card { box-shadow: var(--shot-shadow); }

/* ---- the problem ---- */

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: start;
}

.reexplain {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 15px;
  color: var(--secondary);
}

.reexplain li {
  padding: 9px 0 9px 26px;
  border-bottom: 1px solid var(--hair);
  position: relative;
}

.reexplain li::before {
  content: "↻";
  position: absolute;
  left: 2px;
  color: var(--faint);
  font-family: var(--mono);
}

.reexplain li:last-child { border-bottom: none; }

/* ---- the loop ---- */

.cycle {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 44px;
  counter-reset: stage;
  position: relative;
}

.cycle li {
  background: var(--card);
  border: 1px solid var(--card-border-2);
  border-radius: 10px;
  padding: 18px 20px;
  position: relative;
  counter-increment: stage;
}

.cycle li h3 {
  font-size: 16px;
  color: var(--text);
  font-weight: 600;
  margin: 0 0 6px;
}

.cycle li h3::before {
  content: counter(stage);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ember);
  border: 1px solid var(--int-border);
  border-radius: 6px;
  padding: 1px 7px;
  margin-right: 10px;
  vertical-align: 1px;
}

.cycle li p { margin: 0; font-size: 14px; color: var(--secondary); }

.cycle li .doc-chip {
  font-family: var(--mono);
  font-size: 12px;
  border-radius: 5px;
  padding: 1px 6px;
  border: 1px solid var(--card-border-2);
  background: var(--card-2);
  white-space: nowrap;
}

/* Arrows between stages. Top row reads left-to-right, bottom row
   right-to-left; the two vertical edges close the cycle. */

.cycle li::after {
  font-family: var(--mono);
  color: var(--faint);
  position: absolute;
  font-size: 18px;
}

.cycle li:nth-child(1)::after,
.cycle li:nth-child(2)::after { content: "→"; right: -33px; top: calc(50% - 14px); }

.cycle li:nth-child(3)::after { content: "↓"; left: calc(50% - 5px); bottom: -34px; }

/* Bottom row is laid out 6-5-4 so the flow reads as a circuit. */
.cycle li:nth-child(4) { grid-column: 3; grid-row: 2; }
.cycle li:nth-child(5) { grid-column: 2; grid-row: 2; }
.cycle li:nth-child(6) { grid-column: 1; grid-row: 2; }

.cycle li:nth-child(4)::after,
.cycle li:nth-child(5)::after { content: "←"; left: -33px; top: calc(50% - 14px); }

.cycle li:nth-child(6)::after { content: "↑"; left: calc(50% - 5px); top: -34px; }

/* The stage the cycle is "on" pulses gently, one after another. */
@media (prefers-reduced-motion: no-preference) {
  .cycle li { animation: stage-live 12s infinite; }
  .cycle li:nth-child(2) { animation-delay: 2s; }
  .cycle li:nth-child(3) { animation-delay: 4s; }
  .cycle li:nth-child(4) { animation-delay: 6s; }
  .cycle li:nth-child(5) { animation-delay: 8s; }
  .cycle li:nth-child(6) { animation-delay: 10s; }

  @keyframes stage-live {
    0%, 22%, 100% { border-color: var(--card-border-2); }
    6%, 14% { border-color: var(--ember); }
  }
}

.cycle-caption {
  margin: 26px auto 0;
  max-width: 560px;
  text-align: center;
  font-size: 15px;
  color: var(--muted);
}

/* ---- with / without comparison ---- */

.vs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: stretch;
}

.vs-card {
  border: 1px solid var(--card-border-2);
  border-radius: 12px;
  padding: 20px 22px;
  background: var(--card);
}

.vs-card.with { border-color: var(--ember); background: var(--ember-tint); }

.vs-card h3 {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--muted);
  margin: 0 0 14px;
}

.vs-card.with h3 { color: var(--link-hover); }

.vs-card ol {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 15px;
  color: var(--secondary);
}

.vs-card li { padding: 6px 0 6px 22px; position: relative; }

.vs-card li::before {
  content: "→";
  font-family: var(--mono);
  position: absolute;
  left: 0;
  color: var(--faint);
}

.vs-card li.fade { color: var(--faint); }

.vs-card li.loops::before { content: "↻"; }

.vs-card li strong { color: var(--text); font-weight: 600; }

.vs-note {
  margin: 24px auto 0;
  max-width: 640px;
  text-align: center;
  font-size: 15px;
  color: var(--muted);
}

/* ---- plain files ---- */

.file-card {
  background: var(--card);
  border: 1px solid var(--card-border-2);
  border-radius: 10px;
  overflow: hidden;
}

.file-card .file-name {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  padding: 10px 16px;
  border-bottom: 1px solid var(--hair);
  background: var(--panel);
}

.file-card pre {
  margin: 0;
  border: none;
  border-radius: 0;
  background: none;
  font-size: 13px;
  line-height: 1.6;
  padding: 14px 16px;
}

.file-card .fm { color: var(--faint); }
.file-card .h { color: var(--text); font-weight: 600; }
.file-card .ref { color: var(--ember); }

.same-file {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  font-size: 14.5px;
  color: var(--secondary);
}

.same-file li {
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 10px 14px;
  background: var(--card);
}

.same-file li b { display: block; color: var(--text); font-weight: 600; font-size: 14px; }

/* ---- final CTA ---- */

.fin {
  margin: 96px auto 0;
  text-align: center;
  border-top: 1px solid var(--hair);
  padding: 72px 16px 8px;
  max-width: 1060px;
}

.fin h2 { font-size: 28px; color: var(--text); font-weight: 700; margin: 0 0 10px; letter-spacing: -0.01em; }

.fin p { color: var(--secondary); max-width: 520px; margin: 0 auto 26px; }

/* ---- docs pages ---- */

.doc { max-width: 760px; margin: 0 auto; padding: 30px 16px 0; }

.doc h1 { font-size: 32px; color: var(--text); font-weight: 700; margin: 18px 0 6px; letter-spacing: -0.01em; }

.doc .doc-lead { font-size: 18px; color: var(--secondary); margin: 0 0 30px; }

.doc h2 {
  font-size: 23px;
  color: var(--text);
  font-weight: 700;
  margin: 44px 0 10px;
  padding-top: 18px;
  border-top: 1px solid var(--hair);
}

.doc h3 { font-size: 17px; color: var(--text); font-weight: 600; margin: 26px 0 6px; }

.doc table {
  border-collapse: collapse;
  width: 100%;
  font-size: 14px;
  margin: 14px 0;
  display: block;
  overflow-x: auto;
}

.doc th, .doc td {
  border: 1px solid var(--card-border-2);
  padding: 8px 12px;
  text-align: left;
  vertical-align: top;
}

.doc th { background: var(--card); color: var(--text); font-weight: 600; white-space: nowrap; }

.doc td { color: var(--body-text); }

.doc ul, .doc ol { padding-left: 24px; }
.doc li { margin: 5px 0; }
.doc li::marker { color: var(--faint); }

.callout {
  border: 1px solid var(--amber-border);
  background: var(--amber-tint);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 14px;
  margin: 16px 0;
}

.callout b { color: var(--amber); font-weight: 600; }

.type-req { color: var(--t-req); }
.type-dec { color: var(--t-dec); }
.type-wo  { color: var(--ember); }
.type-src { color: var(--t-src); }
.type-wf  { color: var(--t-wf); }

.next {
  margin-top: 40px;
  padding: 14px 18px;
  background: var(--card);
  border: 1px solid var(--card-border-2);
  border-radius: 10px;
  font-size: 15px;
}

/* ---- responsive ---- */

@media (max-width: 900px) {
  .split, .split.rev { grid-template-columns: 1fr; gap: 20px; }
  .problem-grid { grid-template-columns: 1fr; gap: 20px; }

  .cycle { grid-template-columns: 1fr; gap: 30px; }

  /* Single column: restore document order and point every arrow down;
     the last stage's arrow loops back up to the first. */
  .cycle li:nth-child(4) { grid-column: auto; grid-row: auto; }
  .cycle li:nth-child(5) { grid-column: auto; grid-row: auto; }
  .cycle li:nth-child(6) { grid-column: auto; grid-row: auto; }

  .cycle li::after { content: "↓" !important; left: calc(50% - 5px) !important; right: auto !important; top: auto !important; bottom: -28px !important; }
  .cycle li:nth-child(6)::after { content: "↻" !important; }
}

@media (max-width: 640px) {
  section.band { margin: 64px auto 0; }
  .band h2 { font-size: 24px; }
  .vs-grid { grid-template-columns: 1fr; }
  .same-file { grid-template-columns: 1fr; }
  .hero { padding-top: 40px; }
  .top a.nav { padding: 10px 7px; font-size: 13.5px; }
  code { white-space: normal; }
}