/* Pontara: copper and verdigris on night water. Single dark theme by choice.
   Layout: marketing pages sit in a centered 1180px column; app pages use a left rail plus content. */
:root {
  --ink: #0c1517;
  --ink-2: #111e21;
  --ink-3: #18292d;
  --line: #24393d;
  --stone: #ece6db;
  --muted: #93a4a2;
  --copper: #d98a4e;
  --copper-hi: #f2ac6c;
  --verdigris: #66b8a5;
  --danger: #e57a66;
  --on-copper: #1a0f06;

  --f-display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --f-body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;

  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { background: var(--ink); color: var(--stone); }
body {
  margin: 0;
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
h1, h2, h3 { font-family: var(--f-display); line-height: 1.08; margin: 0; text-wrap: balance; letter-spacing: -0.02em; }
p { margin: 0; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--copper-hi); outline-offset: 2px; border-radius: 4px; }
.mono { font-family: var(--f-mono); font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }

.wrap {
  max-width: 1180px;
  margin-inline: auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}

/* ---------- Shared bits ---------- */
.demo-bar {
  background: var(--copper);
  color: var(--on-copper);
  font-size: 13px;
  font-weight: 500;
  text-align: center;
  padding: 6px 16px;
}
.eyebrow {
  font-family: var(--f-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--verdigris);
}
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-family: var(--f-display); font-weight: 700; font-size: 21px; letter-spacing: -0.02em; }
.brand .logo { width: 26px; height: 34px; flex: none; }
.x-link { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); text-decoration: none; font-size: 14px; }
.x-link:hover { color: var(--stone); }
.x-icon { width: 16px; height: 16px; flex: none; }
.x-link.icon-only span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.x-link.icon-only { padding: 8px; border-radius: 999px; }
.x-link.icon-only .x-icon { width: 18px; height: 18px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 10px 20px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .15s, border-color .15s, transform .15s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--copper); color: var(--on-copper); }
.btn-primary:hover { background: var(--copper-hi); }
.btn-ghost { border-color: var(--line); background: transparent; }
.btn-ghost:hover { border-color: var(--muted); }
.btn-lg { padding: 14px 26px; font-size: 16px; }
.btn-block { width: 100%; padding: 15px; font-size: 16px; }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

.card {
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px;
}

/* ---------- Landing ---------- */
.site-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 22px; }
.site-nav { display: flex; align-items: center; gap: 22px; }
.site-nav a:not(.btn) { text-decoration: none; color: var(--muted); font-size: 15px; }
.site-nav a:not(.btn):hover { color: var(--stone); }

.hero {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 48px;
  align-items: center;
  padding-block: 40px 56px;
}
.hero-copy { display: flex; flex-direction: column; gap: 22px; min-width: 0; }
.hero h1 { font-size: clamp(44px, 6.4vw, 84px); font-weight: 700; }
.hero h1 em { font-style: normal; color: var(--copper-hi); }
.lede { font-size: 19px; color: var(--muted); max-width: 34em; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }

.hero-art {
  position: relative;
  margin: 0;
  aspect-ratio: 5 / 4;
  max-width: 100%;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-3);
}
.hero-art canvas { display: block; width: 100%; height: 100%; }
.rate-chip {
  position: absolute;
  left: 16px;
  bottom: 16px;
  right: 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 12px;
  background: rgba(12, 21, 23, .78);
  backdrop-filter: blur(8px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 12px 16px;
}
.rate-chip span { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .12em; display: inline-flex; align-items: center; gap: 8px; }
.rate-chip strong { font-family: var(--f-mono); font-weight: 500; font-size: 15px; font-variant-numeric: tabular-nums; }
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--verdigris); box-shadow: 0 0 0 0 var(--verdigris); animation: pulse 2s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(102,184,165,.6); } 70% { box-shadow: 0 0 0 8px rgba(102,184,165,0); } 100% { box-shadow: 0 0 0 0 rgba(102,184,165,0); } }

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.stat { padding: 26px 20px 26px 0; display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.stat + .stat { padding-left: 20px; border-left: 1px solid var(--line); }
.stat dt { font-size: 13px; color: var(--muted); }
.stat dd { margin: 0; font-family: var(--f-display); font-size: clamp(26px, 3vw, 36px); font-weight: 600; font-variant-numeric: tabular-nums; }
.stat dd.up { color: var(--verdigris); }
.stat small { font-size: 13px; color: var(--muted); }

.sec { padding-block: 88px 0; }
.sec-head { display: flex; flex-direction: column; gap: 14px; max-width: 640px; margin-bottom: 40px; }
.sec-head h2 { font-size: clamp(32px, 4vw, 48px); }
.sec-head p { color: var(--muted); font-size: 17px; }

.flow { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
.flow li { position: relative; display: flex; flex-direction: column; gap: 8px; padding: 24px 32px 24px 24px; background: var(--ink-2); border: 1px solid var(--line); min-width: 0; }
.flow li:first-child { border-radius: var(--r-lg) 0 0 var(--r-lg); }
.flow li:last-child { border-radius: 0 var(--r-lg) var(--r-lg) 0; }
.flow li + li { border-left: 0; }
.flow li:not(:last-child)::after { content: "→"; position: absolute; right: -14px; top: 50%; transform: translateY(-50%); z-index: 1; width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; background: var(--copper); color: var(--on-copper); font-weight: 700; }
.flow b { font-family: var(--f-display); font-size: 20px; font-weight: 600; }
.flow p { color: var(--muted); font-size: 15px; }
.fine { color: var(--muted); font-size: 13px; margin-top: 24px; }
.fine a { color: var(--copper-hi); }
.notice { border: 1px solid var(--line); border-left: 3px solid var(--copper); border-radius: var(--r-sm); background: var(--ink-2); padding: 12px 16px; font-size: 14px; color: var(--stone); }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; list-style: none; margin: 0; padding: 0; counter-reset: step; }
.steps li { counter-increment: step; border-top: 2px solid var(--copper); padding-top: 20px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.steps li::before { content: "Step " counter(step); font-family: var(--f-mono); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--copper-hi); }
.steps h3 { font-size: 24px; }
.steps p { color: var(--muted); }

.split { display: grid; grid-template-columns: 1.2fr 1fr; gap: 24px; }
.uses { display: flex; flex-direction: column; gap: 18px; }
.uses h3 { font-size: 28px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; font-size: 14px; color: var(--stone); background: var(--ink-3); }
.vault-card { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.vault-card h3 { font-size: 22px; }
.addr { display: flex; align-items: center; gap: 10px; background: var(--ink); border: 1px solid var(--line); border-radius: var(--r-sm); padding: 10px 12px; min-width: 0; }
.addr code { font-family: var(--f-mono); font-size: 13px; overflow-wrap: anywhere; flex: 1; min-width: 0; }

.cta-band { margin-top: 96px; background: var(--ink-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.cta-band .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; padding-block: 56px; }
.cta-band h2 { font-size: clamp(28px, 3.6vw, 42px); max-width: 16em; }

.site-foot { padding-block: 48px 40px; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
.site-foot h4 { margin: 0 0 12px; font-size: 13px; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); font-weight: 500; }
.site-foot ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.site-foot a { text-decoration: none; color: var(--stone); }
.site-foot a:hover { color: var(--copper-hi); }
.foot-brand { display: flex; flex-direction: column; gap: 14px; max-width: 26em; }
.foot-brand p { color: var(--muted); font-size: 14px; }
.legal-line { grid-column: 1 / -1; border-top: 1px solid var(--line); padding-top: 20px; font-size: 13px; color: var(--muted); }

/* ---------- App shell ---------- */
.shell { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; }
.rail {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding: 22px 16px;
  border-right: 1px solid var(--line);
  background: var(--ink-2);
}
.rail nav { display: flex; flex-direction: column; gap: 4px; }
.rail nav a { display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: var(--r-sm); text-decoration: none; color: var(--muted); font-weight: 500; }
.rail nav a:hover { color: var(--stone); background: var(--ink-3); }
.rail nav a[aria-current="page"] { color: var(--stone); background: var(--ink-3); box-shadow: inset 2px 0 0 var(--copper); }
.rail nav svg { width: 18px; height: 18px; flex: none; }
.rail-foot { margin-top: auto; display: flex; flex-direction: column; gap: 8px; font-size: 13px; color: var(--muted); }
.status-dot { display: inline-flex; align-items: center; gap: 8px; }
.status-dot::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--copper); }

.main { min-width: 0; display: flex; flex-direction: column; }
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px max(28px, env(safe-area-inset-right, 0px)) 18px 28px;
  border-bottom: 1px solid var(--line);
}
.topbar h1 { font-size: 26px; }
.net-pill { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; font-size: 13px; color: var(--muted); }
.net-pill::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--verdigris); }
.top-actions { display: flex; align-items: center; gap: 10px; }
.content { padding: 28px; display: flex; flex-direction: column; gap: 24px; }
.content > .demo-note { font-size: 13px; color: var(--muted); }

.app-grid { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 24px; align-items: start; }
.col { display: flex; flex-direction: column; gap: 24px; min-width: 0; }

.tabs { display: grid; grid-template-columns: 1fr 1fr; background: var(--ink); border: 1px solid var(--line); border-radius: 999px; padding: 4px; margin-bottom: 22px; }
.tabs button { border: 0; background: transparent; padding: 10px; border-radius: 999px; cursor: pointer; color: var(--muted); font-weight: 600; }
.tabs button[aria-selected="true"] { background: var(--ink-3); color: var(--stone); }

.field-label { display: flex; justify-content: space-between; align-items: center; gap: 8px; font-size: 14px; color: var(--muted); margin-bottom: 8px; flex-wrap: wrap; }
.linkish { background: none; border: 0; color: var(--copper-hi); cursor: pointer; padding: 0 0 0 6px; font-weight: 600; font-size: 13px; }
.field { display: flex; align-items: center; gap: 12px; background: var(--ink); border: 1px solid var(--line); border-radius: var(--r-md); padding: 14px 16px; }
.field:focus-within { border-color: var(--copper); }
.field input { flex: 1; min-width: 0; background: transparent; border: 0; outline: 0; font-family: var(--f-display); font-size: 30px; font-weight: 500; color: var(--stone); font-variant-numeric: tabular-nums; }
.field input::placeholder { color: #4a5e60; }
.field .out { flex: 1; min-width: 0; font-family: var(--f-display); font-size: 30px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; font-variant-numeric: tabular-nums; }
.unit { font-family: var(--f-mono); font-size: 14px; color: var(--muted); background: var(--ink-3); border-radius: 999px; padding: 4px 10px; flex: none; }
.flow-arrow { display: grid; place-items: center; margin: -6px auto; position: relative; z-index: 1; width: 36px; height: 36px; border-radius: 50%; background: var(--ink-2); border: 1px solid var(--line); color: var(--muted); }

.kv { display: grid; grid-template-columns: auto 1fr; gap: 10px 16px; margin: 22px 0; font-size: 14px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; text-align: right; font-family: var(--f-mono); font-variant-numeric: tabular-nums; }
.kv dd.up { color: var(--verdigris); }


.panel-title { font-size: 13px; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); font-family: var(--f-body); font-weight: 500; margin-bottom: 14px; }
.asset { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 0; }
.asset + .asset { border-top: 1px solid var(--line); }
.asset-name { display: flex; align-items: center; gap: 10px; min-width: 0; }
.token-dot { width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; font-family: var(--f-mono); font-size: 11px; font-weight: 600; flex: none; }
.token-dot.pons { background: var(--copper); color: var(--on-copper); }
.token-dot.st { background: var(--verdigris); color: #072019; }
.asset small { display: block; color: var(--muted); font-size: 12px; }
.asset-val { text-align: right; font-family: var(--f-mono); font-variant-numeric: tabular-nums; }

.queue-item { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px 0; border-top: 1px solid var(--line); font-size: 14px; }
.queue-item:first-of-type { border-top: 0; }
.tag { font-size: 12px; border-radius: 999px; padding: 3px 10px; border: 1px solid var(--line); color: var(--muted); }
.tag.ready { border-color: var(--verdigris); color: var(--verdigris); }

.how { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: s; }
.how li { counter-increment: s; display: flex; flex-direction: column; gap: 6px; }
.how li::before { content: counter(s); width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; background: var(--ink-3); color: var(--copper-hi); font-family: var(--f-mono); font-size: 13px; }
.how b { font-size: 16px; }
.how p { color: var(--muted); font-size: 14px; }

.faq details { border-top: 1px solid var(--line); padding: 14px 0; }
.faq details:first-of-type { border-top: 0; }
.faq summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--copper-hi); font-family: var(--f-mono); }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--muted); margin-top: 10px; font-size: 15px; }


/* ---------- Docs ---------- */
.doc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.doc-card { display: flex; flex-direction: column; gap: 10px; text-decoration: none; padding: 22px; border: 1px solid var(--line); border-radius: var(--r-md); background: var(--ink-2); transition: border-color .15s; }
.doc-card:hover { border-color: var(--copper); }
.doc-card h3 { font-size: 20px; }
.doc-card p { color: var(--muted); font-size: 14px; flex: 1; }
.doc-card .read { color: var(--copper-hi); font-size: 14px; font-weight: 600; }
.article { max-width: 720px; display: flex; flex-direction: column; gap: 18px; }
.article .back { color: var(--muted); text-decoration: none; font-size: 14px; }
.article .back:hover { color: var(--stone); }
.article h1 { font-size: clamp(34px, 4vw, 46px); }
.article .summary { font-size: 19px; color: var(--muted); }
.article h2 { font-size: 24px; margin-top: 18px; }
.article p, .article li { color: #c9c6be; max-width: 65ch; }
.article ul, .article ol { margin: 0; padding-left: 22px; display: flex; flex-direction: column; gap: 6px; }
.article code { font-family: var(--f-mono); font-size: 14px; background: var(--ink-3); padding: 1px 6px; border-radius: 4px; overflow-wrap: anywhere; }
.callout { border: 1px solid var(--line); border-left: 3px solid var(--copper); border-radius: var(--r-sm); padding: 14px 16px; background: var(--ink-2); }
.pager { display: flex; justify-content: space-between; gap: 16px; border-top: 1px solid var(--line); padding-top: 20px; margin-top: 16px; flex-wrap: wrap; }
.pager a { text-decoration: none; display: flex; flex-direction: column; gap: 2px; }
.pager a small { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .1em; }
.pager a span { color: var(--copper-hi); font-weight: 600; }
.pager a:last-child { text-align: right; margin-left: auto; }

/* ---------- Modal + toast ---------- */
.overlay { position: fixed; inset: 0; background: rgba(5, 10, 11, .72); display: grid; place-items: center; padding: 16px; z-index: 50; }
.modal { width: min(440px, 100%); display: flex; flex-direction: column; gap: 16px; }
.modal h2 { font-size: 24px; }
.modal p { color: var(--muted); }
.modal-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.toast {
  position: fixed;
  left: 50%;
  bottom: calc(24px + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%);
  background: var(--stone);
  color: var(--ink);
  padding: 12px 18px;
  border-radius: var(--r-md);
  font-weight: 500;
  font-size: 15px;
  max-width: calc(100vw - 32px);
  z-index: 60;
  box-shadow: 0 10px 30px rgba(0,0,0,.4);
}

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .app-grid { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 32px; padding-top: 16px; }
  .flow { grid-template-columns: 1fr; }
  .flow li, .flow li:first-child, .flow li:last-child { border-radius: 0; border-left: 1px solid var(--line); }
  .flow li:first-child { border-radius: var(--r-lg) var(--r-lg) 0 0; }
  .flow li:last-child { border-radius: 0 0 var(--r-lg) var(--r-lg); }
  .flow li + li { border-top: 0; }
  .flow li:not(:last-child)::after { content: "↓"; right: auto; left: 24px; top: auto; bottom: -14px; transform: none; }
  .split { grid-template-columns: 1fr; }
  .site-foot { grid-template-columns: 1fr 1fr; }
  .foot-brand { grid-column: 1 / -1; }
}
@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .rail { position: static; height: auto; flex-direction: row; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; border-right: 0; border-bottom: 1px solid var(--line); padding: 14px max(16px, env(safe-area-inset-right, 0px)) 14px max(16px, env(safe-area-inset-left, 0px)); }
  .rail nav { flex-direction: row; gap: 2px; }
  .rail nav a { padding: 8px 10px; }
  .rail nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--copper); }
  .rail-foot { display: none; }
  .topbar { padding: 16px max(16px, env(safe-area-inset-right, 0px)) 16px max(16px, env(safe-area-inset-left, 0px)); }
  .content { padding: 20px max(16px, env(safe-area-inset-right, 0px)) 32px max(16px, env(safe-area-inset-left, 0px)); }
  .how { grid-template-columns: 1fr; }
}
@media (max-width: 700px) {
  .stats { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(3) { padding-left: 0; border-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--line); }
  .steps { grid-template-columns: 1fr; }
  .site-nav a.hide-sm { display: none; }
  .sec { padding-top: 64px; }
  .field input, .field .out { font-size: 24px; }
}
@media (max-width: 460px) {
  .rail nav a span { display: none; }
  .site-foot { grid-template-columns: 1fr; }
  .top-actions .net-pill { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}