/* GI/PPI site. Visual language adapted from the team's "SaaS Product Launch" and "Developer API Platform"
   templates: warm paper background, deep ink, editorial serif italic accents, pill eyebrows, dark pill
   buttons, numbered cards with lime icon discs, dark code panels, lime call-to-action band, ink footer. */
:root {
  --paper: #f4f2ec;
  --paper-2: #ecebe4;
  --card: #fbfaf6;
  --ink: #16201b;
  --ink-2: #3b4640;
  --muted: #6b746e;
  --line: #dcdad2;
  --lime: #d4f56a;
  --lime-ink: #2a3a05;
  --sage: #5b7460;
  --coral: #ff7a59;
  --code-bg: #121a16;
  --code-ink: #dbe7df;
  --code-dim: #7d8f84;
  --radius: 18px;
  --radius-lg: 26px;
  --max: 1160px;
  --sans: "Instrument Sans", "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: "Instrument Serif", "Iowan Old Style", Georgia, serif;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
.wrap { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 12px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }
:focus-visible { outline: 2px solid var(--sage); outline-offset: 3px; border-radius: 6px; }

/* ---------- header ---------- */
.site-head { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: saturate(1.2) blur(10px); border-bottom: 1px solid transparent; transition: border-color .2s; }
.site-head.scrolled { border-bottom-color: var(--line); }
.head-row { display: flex; align-items: center; gap: 28px; height: 72px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 19px; letter-spacing: -0.02em; text-decoration: none; }
.brand-mark { width: 26px; height: 26px; }
.nav { display: flex; gap: 26px; margin-left: auto; }
.nav a { text-decoration: none; color: var(--ink-2); font-size: 15px; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); }
.nav a[aria-current="page"] { font-weight: 600; }
.head-cta { margin-left: 8px; }
.menu-btn { display: none; margin-left: auto; background: none; border: 1px solid var(--line); border-radius: 10px; width: 42px; height: 42px; cursor: pointer; }
.menu-btn span { display: block; width: 18px; height: 2px; background: var(--ink); margin: 4px auto; border-radius: 2px; }

/* ---------- buttons, pills ---------- */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 13px 22px; border-radius: 12px; font: 600 15px/1 var(--sans); text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: transform .15s, background .15s; }
.btn:hover { transform: translateY(-1px); }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: #24302a; }
.btn-light { background: var(--card); color: var(--ink); border-color: var(--line); }
.btn .arr { transition: transform .15s; }
.btn:hover .arr { transform: translateX(3px); }
.pill { display: inline-block; padding: 7px 14px; border: 1px solid var(--line); border-radius: 999px; font-size: 11.5px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-2); background: var(--card); }
.pill-lime { background: var(--lime); border-color: transparent; color: var(--lime-ink); }

/* ---------- type ---------- */
h1, h2, h3 { letter-spacing: -0.035em; line-height: 1.04; margin: 0; font-weight: 600; }
h1 { font-size: clamp(42px, 6.6vw, 82px); }
h2 { font-size: clamp(32px, 4.4vw, 54px); }
h3 { font-size: 22px; letter-spacing: -0.02em; line-height: 1.2; }
em.serif, .serif { font-family: var(--serif); font-style: italic; font-weight: 400; color: var(--sage); letter-spacing: -0.01em; }
.lead { font-size: clamp(17px, 1.6vw, 20px); color: var(--ink-2); max-width: 640px; }
.center { text-align: center; }
.center .lead { margin-left: auto; margin-right: auto; }
.small { font-size: 14px; color: var(--muted); }

/* ---------- sections ---------- */
section { padding: 96px 0; }
.hero { padding: 88px 0 56px; }
.hero h1 { margin: 22px auto 22px; max-width: 900px; }
.hero .actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 30px; }
.ticks { display: flex; gap: 22px; justify-content: center; flex-wrap: wrap; margin-top: 22px; font-size: 13.5px; color: var(--muted); }
.ticks span::before { content: "\2713"; margin-right: 6px; color: var(--sage); }
.section-head { margin-bottom: 44px; }
.section-head h2 { margin-top: 16px; }
.section-head .lead { margin-top: 16px; }
.alt { background: var(--paper-2); }

/* ---------- code / app panel ---------- */
.panel { margin: 56px auto 0; max-width: 960px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: 0 30px 60px -30px rgba(22,32,27,.25); overflow: hidden; }
.panel-bar { display: flex; align-items: center; gap: 8px; padding: 14px 18px; border-bottom: 1px solid var(--line); font-size: 13px; color: var(--muted); }
.dots { display: inline-flex; gap: 6px; margin-right: 8px; }
.dots i { width: 10px; height: 10px; border-radius: 50%; background: #d9d6cd; }
.panel-bar .right { margin-left: auto; }
.panel-grid { display: grid; grid-template-columns: 1fr 1fr; }
.panel-grid > div { padding: 22px; }
.panel-grid > div + div { border-left: 1px solid var(--line); }
.panel-grid > div:last-child { padding-bottom: 100px; }
.code { background: var(--code-bg); color: var(--code-ink); border-radius: 14px; padding: 18px 20px; font: 13px/1.65 var(--mono); overflow-x: auto; white-space: pre; position: relative; }
.code .k { color: #9fd8ff; } .code .s { color: var(--lime); } .code .c { color: var(--code-dim); } .code .n { color: #ffb38a; }
.code .ok { background: #1f3b21; color: #9be38a; padding: 1px 6px; border-radius: 5px; }
.code .no { background: #3e1d16; color: #ff9d85; padding: 1px 6px; border-radius: 5px; }
.copy { position: absolute; top: 10px; right: 10px; background: #26302b; color: var(--code-ink); border: 0; border-radius: 8px; font: 600 12px var(--sans); padding: 6px 10px; cursor: pointer; }
.label { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin-bottom: 10px; }
.toast { position: absolute; right: 26px; bottom: 26px; background: var(--ink); color: #fff; border-radius: 14px; padding: 12px 16px; font-size: 13px; display: flex; gap: 10px; align-items: center; box-shadow: 0 16px 30px -12px rgba(0,0,0,.4); }
.toast .disc { width: 28px; height: 28px; border-radius: 50%; background: var(--lime); color: var(--lime-ink); display: grid; place-items: center; font-weight: 700; }

/* ---------- stats strip ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stat { padding: 30px 20px; text-align: center; }
.stat + .stat { border-left: 1px solid var(--line); }
.stat b { display: block; font-size: 30px; letter-spacing: -0.03em; }
.stat span { font-size: 13.5px; color: var(--muted); }

/* ---------- cards ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.cards.two { grid-template-columns: repeat(2, 1fr); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.card .num { font-size: 12px; color: var(--muted); font-weight: 600; letter-spacing: .08em; }
.disc-icon { width: 44px; height: 44px; border-radius: 50%; background: var(--lime); color: var(--lime-ink); display: grid; place-items: center; margin: 22px 0 18px; }
.disc-icon svg { width: 20px; height: 20px; }
.card p { color: var(--ink-2); margin: 10px 0 0; font-size: 15px; }
.card.dark { background: var(--ink); color: #eef2ef; border-color: var(--ink); }
.card.dark p { color: #b9c5bd; }

/* ---------- steps ---------- */
.steps { counter-reset: step; display: grid; gap: 14px; }
.step { display: grid; grid-template-columns: 64px 1fr 1.1fr; gap: 24px; align-items: start; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.step::before { counter-increment: step; content: counter(step, decimal-leading-zero); font: 400 34px/1 var(--serif); font-style: italic; color: var(--sage); }
.step p { margin: 8px 0 0; color: var(--ink-2); font-size: 15px; }
.step .code { font-size: 12.5px; }

/* ---------- table ---------- */
.table { width: 100%; border-collapse: separate; border-spacing: 0; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; font-size: 15px; }
.table th, .table td { text-align: left; padding: 16px 18px; vertical-align: top; }
.table th { background: var(--paper-2); font-size: 12.5px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.table tr + tr td { border-top: 1px solid var(--line); }
.tag { display: inline-block; font-size: 12px; font-weight: 600; padding: 3px 9px; border-radius: 999px; }
.tag.allow { background: #e3f3d9; color: #2c5a17; } .tag.deny { background: #fde3dc; color: #8a2a14; } .tag.info { background: #e6ece8; color: var(--ink-2); }

/* ---------- split ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.list { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 12px; }
.list li { padding-left: 28px; position: relative; color: var(--ink-2); }
.list li::before { content: ""; position: absolute; left: 0; top: 8px; width: 14px; height: 14px; border-radius: 50%; background: var(--lime); box-shadow: inset 0 0 0 4px var(--lime-ink); }

/* ---------- CTA band ---------- */
.cta-band { background: var(--lime); border-radius: var(--radius-lg); padding: 64px; display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: center; overflow: hidden; position: relative; }
.cta-band h2 { color: var(--ink); }
.cta-band .serif { color: var(--ink-2); }
.cta-band p { color: var(--lime-ink); margin: 18px 0 26px; }
.orbit { position: relative; aspect-ratio: 1; max-width: 300px; margin-left: auto; }
.orbit::before, .orbit::after { content: ""; position: absolute; inset: 0; border: 1px solid rgba(42,58,5,.35); border-radius: 50%; }
.orbit::after { inset: 22%; }
.orbit .core { position: absolute; inset: 38%; background: var(--ink); color: #fff; border-radius: 999px; display: grid; place-items: center; font: 600 12px var(--mono); }
.orbit i { position: absolute; width: 14px; height: 14px; border-radius: 50%; }
.orbit i:nth-child(1) { background: var(--coral); top: 6%; left: 62%; }
.orbit i:nth-child(2) { background: #fff; top: 48%; left: -2%; }
.orbit i:nth-child(3) { background: #b9a6ff; top: 82%; left: 74%; }
@media (prefers-reduced-motion: no-preference) { .orbit { animation: spin 40s linear infinite; } .orbit .core { animation: spin 40s linear infinite reverse; } }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- prose (research) ---------- */
.prose { max-width: 720px; }
.prose p { color: var(--ink-2); font-size: 17px; }
.prose blockquote { margin: 28px 0; padding: 4px 0 4px 22px; border-left: 3px solid var(--lime); font: italic 400 24px/1.4 var(--serif); color: var(--ink); }

/* ---------- footer ---------- */
.site-foot { background: var(--ink); color: #cfd8d2; padding: 64px 0 30px; margin-top: 40px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.site-foot .brand { color: #fff; }
.site-foot p { color: #9aa79f; font-size: 14px; max-width: 320px; }
.site-foot h4 { color: #fff; font-size: 14px; margin: 4px 0 14px; }
.site-foot ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.site-foot a { color: #cfd8d2; text-decoration: none; font-size: 14px; }
.site-foot a:hover { color: #fff; }
.foot-base { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; border-top: 1px solid #2c3832; margin-top: 48px; padding-top: 22px; font-size: 12.5px; color: #85928a; }

/* ---------- reveal ---------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
  .reveal.in { opacity: 1; transform: none; }
}

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .cards, .cards.two { grid-template-columns: 1fr 1fr; }
  .split, .cta-band { grid-template-columns: 1fr; }
  .orbit { margin: 0 auto; max-width: 220px; }
  .step { grid-template-columns: 48px 1fr; }
  .step > :last-child { grid-column: 1 / -1; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(3) { border-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--line); }
  .panel-grid { grid-template-columns: 1fr; }
  .panel-grid > div + div { border-left: 0; border-top: 1px solid var(--line); }
}
@media (max-width: 760px) {
  .nav, .head-cta { display: none; }
  .menu-btn { display: block; }
  .site-head.open .nav { display: flex; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0; background: var(--paper); padding: 18px 24px 24px; border-bottom: 1px solid var(--line); gap: 16px; }
  .cards, .cards.two { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
  section { padding: 72px 0; }
  .cta-band { padding: 36px 26px; }
  .toast { display: none; }
  .panel-grid > div:last-child { padding-bottom: 22px; }
  .table { font-size: 14px; }
  .table th:nth-child(3), .table td:nth-child(3) { display: none; }
}