/* SuperTokenMan site. Soft on top, Swiss underneath (docs/BRAND.md, "Positioning and the public face"):
   white and airy, one accent, mono for labels and numbers, the 45 degree cut used sparingly. */
@font-face { font-family: 'SuperToken Display'; src: url('supertoken-display.woff2') format('woff2'); font-display: swap; }

:root {
  --bg: #ffffff; --surface: #f5f5f7; --ink: #1d1d1f; --muted: #515154; --faint: #86868b; --line: #e3e3e6;
  --accent: #c65d3b; --accent-ink: #ffffff;
  --display: 'SuperToken Display', -apple-system, 'SF Pro Display', 'Helvetica Neue', Arial, sans-serif;
  --ui: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', Arial, sans-serif;
  --mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --cut: 14px; --wrap: 1120px; --ease: cubic-bezier(.2, .7, .2, 1);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f0f0e; --surface: #181816; --ink: #ecebe6; --muted: #b5b3ac; --faint: #8a8880; --line: #2a2926;
    --accent: #d97757; --accent-ink: #0f0f0e;
  }
}
:root[data-theme="dark"] {
  --bg: #0f0f0e; --surface: #181816; --ink: #ecebe6; --muted: #b5b3ac; --faint: #8a8880; --line: #2a2926;
  --accent: #d97757; --accent-ink: #0f0f0e;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.55 var(--ui); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
img { max-width: 100%; display: block; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
@media (max-width: 600px) { .wrap { padding: 0 16px; } }

.label { font: 500 11px/1.4 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--faint); }
/* titles in the system sans, semibold and tight, like the splash film; SuperToken Display is kept for
   the name and large numbers only */
.display { font-family: var(--ui); font-weight: 600; letter-spacing: -.028em; line-height: 1.06; margin: 0; }
.mark, .num { font-family: var(--display); font-weight: 400; letter-spacing: .02em; }
.lead { color: var(--muted); font-size: 19px; max-width: 40em; }

/* the signature: three bars */
.bars { display: inline-grid; gap: 3px; width: 18px; }
.bars i { display: block; height: 3px; background: var(--ink); }
.bars i:nth-child(2) { width: 70%; }
.bars i:nth-child(3) { width: 40%; background: var(--accent); }

/* header */
.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: saturate(1.4) blur(14px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 24px; height: 56px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-family: var(--display); font-size: 15px; letter-spacing: .02em; }
.nav { display: flex; gap: 22px; margin-left: auto; font-size: 14px; }
.nav a { text-decoration: none; color: var(--muted); }
.nav a:hover, .nav a[aria-current] { color: var(--ink); }
.nav a.btn, .nav a.btn:hover { color: var(--accent-ink); }
@media (max-width: 760px) { .nav a.opt { display: none; } }

/* the one button that matters: accent, cut corner */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 13px 22px; font: 600 16px/1 var(--ui); text-decoration: none; background: var(--accent); color: var(--accent-ink); clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%); transition: filter .2s; }
.btn:hover { filter: brightness(1.08); }
.btn.small { padding: 9px 16px; font-size: 14px; --cut: 10px; }
.link { color: var(--accent); text-decoration: none; font-weight: 500; }
.link:hover { text-decoration: underline; }

/* hero: the splash film's two lines, then the promise */
.hero { padding: 104px 0 56px; text-align: center; }
.film { display: grid; justify-items: center; gap: 2px; margin-bottom: 28px; font: 500 15px/1.3 var(--mono); color: var(--faint); }
.film span { opacity: 0; filter: blur(8px); transform: translateY(8px); animation: rise 1.1s var(--ease) forwards; }
.film span:nth-child(2) { animation-delay: .35s; }
.hero h1 { font-size: clamp(44px, 8vw, 92px); max-width: 12em; margin: 0 auto; opacity: 0; animation: rise 1.2s .7s var(--ease) forwards; }
.hero .lead { margin: 28px auto 36px; opacity: 0; animation: rise 1s 1s var(--ease) forwards; }
.hero .cta { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 20px; opacity: 0; animation: rise 1s 1.2s var(--ease) forwards; }
.rule { width: 56px; height: 2px; background: var(--accent); margin: 0 auto 28px; transform: scaleX(0); animation: grow .9s .55s var(--ease) forwards; }
@keyframes rise { to { opacity: 1; filter: none; transform: none; } }
@keyframes grow { to { transform: none; } }

/* a real screen, framed, with the big cut */
.shot { margin: 0; background: var(--surface); padding: 10px; clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 0 100%); }
.shot img { width: 100%; height: auto; }
.hero .shot { max-width: 1000px; margin: 64px auto 0; opacity: 0; animation: rise 1.2s 1.4s var(--ease) forwards; }

/* pillars */
.pillar { padding: 96px 0; border-top: 1px solid var(--line); }
.pillar .wrap { display: grid; grid-template-columns: 5fr 7fr; gap: 56px; align-items: center; }
.pillar:nth-of-type(even) .wrap { grid-template-columns: 7fr 5fr; }
.pillar:nth-of-type(even) .text { order: 2; }
.pillar h2 { font-size: clamp(34px, 5vw, 56px); margin: 14px 0 20px; }
.pillar p { color: var(--muted); margin: 0 0 14px; }
.pillar ul { margin: 18px 0 0; padding: 0; list-style: none; font: 14px/1.5 var(--mono); color: var(--muted); }
.pillar li { padding: 7px 0; border-top: 1px solid var(--line); }
@media (max-width: 860px) {
  .pillar .wrap, .pillar:nth-of-type(even) .wrap { grid-template-columns: 1fr; gap: 32px; }
  .pillar:nth-of-type(even) .text { order: 0; }
  .pillar { padding: 64px 0; }
}

/* and everything else */
.more { padding: 96px 0; border-top: 1px solid var(--line); }
.more h2 { font-size: clamp(30px, 4vw, 44px); margin: 14px 0 40px; }
.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.grid div { background: var(--bg); padding: 22px 20px; }
.grid b { display: block; font-weight: 600; margin-bottom: 6px; }
.grid span { color: var(--muted); font-size: 15px; }
@media (max-width: 860px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .grid { grid-template-columns: 1fr; } }

/* bands */
.band { padding: 88px 0; border-top: 1px solid var(--line); }
.band .wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.band h2 { font-size: clamp(30px, 4vw, 44px); margin: 14px 0 0; }
.band p { color: var(--muted); margin: 0 0 16px; }
@media (max-width: 760px) { .band .wrap { grid-template-columns: 1fr; gap: 20px; } }
.band.dark { background: var(--surface); }

.final { padding: 120px 0; text-align: center; border-top: 1px solid var(--line); }
.final h2 { font-size: clamp(36px, 6vw, 64px); margin: 0 0 32px; }

/* footer */
.foot { border-top: 1px solid var(--line); padding: 40px 0 56px; font-size: 14px; color: var(--faint); }
.foot .wrap { display: flex; flex-wrap: wrap; gap: 24px 40px; align-items: flex-start; }
.foot nav { display: flex; flex-wrap: wrap; gap: 20px; }
.foot nav a { text-decoration: none; color: var(--muted); }
.foot nav a:hover { color: var(--ink); }
.foot .legal { flex-basis: 100%; margin: 0; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 1ms !important; animation-delay: 0s !important; transition-duration: 1ms !important; }
}

/* ---- brand motion (B): the bars draw in, the cut opens on hover, pillars enter along the 45 degree line */
.bars i { transform-origin: left; animation: bar .7s var(--ease) both; }
.bars i:nth-child(2) { animation-delay: .12s; }
.bars i:nth-child(3) { animation-delay: .24s; }
@keyframes bar { from { transform: scaleX(0); } }
.btn { transition: filter .2s, clip-path .35s var(--ease); }
.btn:hover { clip-path: polygon(0 0, calc(100% - var(--cut) * 1.8) 0, 100% calc(var(--cut) * 1.8), 100% 100%, 0 100%); }
.js .reveal { clip-path: polygon(0 0, 0 0, 0 0, 0 0); transition: clip-path 1.1s var(--ease); }
.js .reveal.in { clip-path: polygon(0 0, 200% 0, 0 200%, 0 0); }
.js .reveal-text { opacity: 0; transform: translate(-12px, 12px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.js .reveal-text.in { opacity: 1; transform: none; }

/* ---- the film (A): a session recreated in code, in the app's Paper colors */
.film-app { --p-bg: #faf9f5; --p-surface: #f2f0e8; --p-raised: #e9e6db; --p-line: #dcd8cb; --p-ink: #1f1e1b; --p-muted: #6b6962; --p-faint: #8c8980; --p-acc: #ba5936; --p-green: #3f7d3a;
  max-width: 1000px; margin: 64px auto 0; text-align: left; background: var(--p-bg); color: var(--p-ink); border: 1px solid var(--p-line); font: 14px/1.5 var(--ui);
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 0 100%); opacity: 0; animation: rise 1.2s 1.4s var(--ease) forwards; }
.fa-top { display: flex; align-items: center; gap: 10px; padding: 10px 14px; background: var(--p-surface); border-bottom: 1px solid var(--p-line); font: 12px var(--mono); color: var(--p-muted); }
.fa-top b { color: var(--p-ink); font-weight: 600; }
.fa-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--p-green); }
.fa-meter { margin-left: auto; display: flex; align-items: baseline; gap: 8px; }
.fa-cost { font: 18px var(--display); color: var(--p-ink); letter-spacing: .02em; font-variant-numeric: tabular-nums; }
.fa-cost span { display: inline-block; }
.fa-cost span.f { animation: flap .14s cubic-bezier(.3,.7,.2,1) both; }
@keyframes flap { from { clip-path: inset(0 0 50% 0); transform: translateY(-30%); } }
.fa-body { padding: 22px 22px 18px; display: grid; gap: 14px; min-height: 330px; align-content: start; }
.fa-msg { max-width: 72%; }
.fa-you { justify-self: end; background: var(--p-raised); padding: 9px 13px; }
.fa-claude { color: var(--p-ink); }
.fa-step { opacity: 0; transform: translateY(6px); transition: opacity .45s var(--ease), transform .45s var(--ease); }
.fa-step.on { opacity: 1; transform: none; }
.fa-ask { border: 1px solid color-mix(in srgb, var(--p-acc) 45%, transparent); background: linear-gradient(180deg, color-mix(in srgb, var(--p-acc) 9%, transparent), transparent 70%), var(--p-surface); padding: 12px; display: grid; gap: 10px; max-width: 520px; }
.fa-ask-head { display: flex; gap: 8px; align-items: center; font: 600 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--p-acc); }
.fa-ask-head em { font-style: normal; color: var(--p-ink); text-transform: none; letter-spacing: 0; font-weight: 400; }
.fa-cmd { margin: 0; font: 12px/1.5 var(--mono); background: var(--p-bg); border: 1px solid var(--p-line); padding: 9px 12px; }
.fa-actions { display: flex; justify-content: flex-end; gap: 6px; }
.fa-b { font: 13px var(--ui); padding: 6px 14px; border: 1px solid var(--p-line); background: var(--p-bg); color: var(--p-ink); }
.fa-b.allow { background: var(--p-acc); border-color: var(--p-acc); color: #fff; clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 0 100%); transition: transform .12s, filter .12s; }
.fa-b.allow.press { transform: scale(.95); filter: brightness(1.15); }
.fa-ask.done { opacity: .55; }
.fa-ask.done .fa-actions { display: none; }
.fa-run { font: 12px/1.6 var(--mono); color: var(--p-muted); border-left: 2px solid var(--p-line); padding-left: 12px; }
.fa-run b { color: var(--p-green); font-weight: 600; }
.fa-comp { margin: 0 22px 18px; border: 1px solid var(--p-line); padding: 10px 12px; color: var(--p-faint); font-size: 13px; display: flex; justify-content: space-between; }
.fa-caption { max-width: 1000px; margin: 12px auto 0; text-align: right; }
@media (max-width: 600px) { .fa-msg { max-width: 92%; } .fa-body { padding: 16px; min-height: 360px; } .fa-comp { margin: 0 16px 16px; } .fa-top .opt { display: none; } }

/* ---- inner pages: download, security, docs, changelog */
.page-head { padding: 96px 0 48px; }
.page-head h1 { font-size: clamp(38px, 6vw, 64px); max-width: 14em; margin: 14px 0 0; }
.page-head .lead { margin: 22px 0 0; }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.btn.ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--ink); }
.btn.ghost:hover { filter: none; background: var(--surface); }
.hint { color: var(--faint); font-size: 14px; margin: 16px 0 0; }
.doc { padding: 24px 0 96px; }
.wrap.narrow { max-width: 820px; }
.doc h2 { font-size: 24px; font-weight: 600; letter-spacing: -.015em; margin: 56px 0 16px; padding-top: 24px; border-top: 1px solid var(--line); }
.doc h2:first-child { margin-top: 0; }
.doc p { color: var(--muted); margin: 0 0 14px; }
code { font: 14px var(--mono); background: var(--surface); padding: 1px 5px; }
.code { font: 14px/1.6 var(--mono); background: var(--surface); padding: 16px 18px; margin: 0 0 16px; overflow-x: auto; clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%); }
.steps { margin: 0; padding-left: 22px; color: var(--muted); }
.steps li { padding: 4px 0; }
.facts { list-style: none; margin: 0; padding: 0; }
.facts li { display: grid; grid-template-columns: 120px 1fr; gap: 16px; padding: 12px 0; border-top: 1px solid var(--line); color: var(--muted); }
.facts li:last-child { border-bottom: 1px solid var(--line); }
@media (max-width: 520px) { .facts li { grid-template-columns: 1fr; gap: 4px; } }
.table { overflow-x: auto; margin: 0 0 8px; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th { text-align: left; font: 500 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--faint); padding: 0 12px 10px 0; }
td { padding: 12px 12px 12px 0; border-top: 1px solid var(--line); color: var(--muted); vertical-align: top; }
td:first-child { color: var(--ink); font-weight: 500; }
@media (max-width: 640px) { table { min-width: 560px; } }

/* docs and changelog */
.doc-grid { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 56px; max-width: 1040px; }
.doc-nav { display: grid; align-content: start; gap: 2px; position: sticky; top: 80px; }
.doc-nav a { text-decoration: none; color: var(--muted); font-size: 15px; padding: 6px 0 6px 12px; border-left: 2px solid var(--line); }
.doc-nav a:hover { color: var(--ink); }
.doc-nav a[aria-current] { color: var(--ink); border-left-color: var(--accent); }
@media (max-width: 760px) { .doc-grid { grid-template-columns: 1fr; gap: 24px; } .doc-nav { position: static; grid-auto-flow: column; overflow-x: auto; } .doc-nav a { white-space: nowrap; border-left: 0; border-bottom: 2px solid var(--line); padding: 6px 10px; } .doc-nav a[aria-current] { border-bottom-color: var(--accent); } }
.prose { color: var(--muted); max-width: 680px; }
.prose h2 { font-size: 22px; font-weight: 600; color: var(--ink); letter-spacing: -.015em; margin: 40px 0 12px; }
.prose p, .prose li { margin: 0 0 12px; }
.prose ul, .prose ol { padding-left: 22px; margin: 0 0 16px; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose a { color: var(--accent); text-decoration: none; }
.prose a:hover { text-decoration: underline; }
.docs-index a { display: block; text-decoration: none; background: var(--bg); padding: 22px 20px; }
.docs-index a:hover b { color: var(--accent); }
.grid.docs-index { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 520px) { .grid.docs-index { grid-template-columns: 1fr; } }
.docs-index b { display: block; font-weight: 600; margin-bottom: 6px; color: var(--ink); }
.docs-index span { color: var(--muted); font-size: 15px; }
.release { padding: 32px 0; border-top: 1px solid var(--line); }
.release-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 16px; margin-bottom: 14px; }
.release-head h2 { margin: 0; font-size: 24px; font-weight: 600; letter-spacing: -.015em; }
.empty { color: var(--muted); padding: 24px 0; border-top: 1px solid var(--line); }