:root {
  --ink: #0b0c0e;
  --ink-2: #3d4148;
  --ink-3: #6b7079;
  --line: #e6e7ea;
  --line-2: #eff0f2;
  --paper: #ffffff;
  --paper-2: #fafafb;
  --paper-3: #f4f5f7;
  --blue: #4f46e5;
  --blue-press: color-mix(in srgb, var(--blue) 84%, #000);
  --blue-soft: color-mix(in srgb, var(--blue) 11%, #fff);
  --indigo: #4f46e5;
  --indigo-soft: #eeeeff;
  --teal: #0e3b3a;
  --teal-2: #0a2d2c;
  --sans: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --head-font: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --maxw: 1180px;
  --sec-maxw: 72ch;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}
a { color: inherit; text-decoration: none; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }

.mono { font-family: var(--mono); }
.eyebrow {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ---------- Nav ---------- */
header.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.82);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex; align-items: center; gap: 32px;
  height: 80px;
}
.wordmark {
  display: flex; align-items: center; gap: 6px;
  font-weight: 700; font-size: 24px; letter-spacing: 0.06em;
}
.wordmark svg,
.wordmark img { width: 46px; height: 46px; flex: none; display: block; }
.nav-links { display: flex; gap: 28px; margin-left: auto; }
.nav-links a {
  font-size: 15px; color: var(--ink-2); font-weight: 500;
  transition: color .15s;
}
.nav-links a:hover { color: var(--ink); }
.nav-actions { display: flex; align-items: center; gap: 12px; }

.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--sans); font-weight: 600; font-size: 15px;
  padding: 11px 18px; border-radius: 9px; cursor: pointer;
  border: 1px solid transparent; transition: all .15s; white-space: nowrap;
}
.btn svg { width: 17px; height: 17px; }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-press); }
.btn-ghost { background: var(--paper); color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: #cdcfd4; background: var(--paper-2); }
.btn-lg { padding: 14px 24px; font-size: 16px; border-radius: 10px; }

/* ---------- Hero ---------- */
.hero { padding: 88px 0 56px; position: relative; }
.hero-top { display: grid; grid-template-columns: 1.12fr 0.88fr; gap: 60px; align-items: end; }
.hero-aside { padding-bottom: 6px; }
@media (max-width: 900px) {
  .hero-top { grid-template-columns: 1fr; gap: 30px; align-items: start; }
  .hero-aside { padding-bottom: 0; }
}
.badge-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 26px; }
.pill {
  font-family: var(--mono); font-size: 12.5px; font-weight: 500;
  padding: 6px 11px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--ink-2);
  display: inline-flex; align-items: center; gap: 7px;
}
.pill.live { background: var(--indigo-soft); border-color: #ddddfb; color: var(--indigo); }
.pill .led { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }

h1.hero-title {
  font-family: var(--head-font);
  font-size: clamp(40px, 5.4vw, 70px);
  line-height: 1.03; font-weight: 700; letter-spacing: -0.02em;
  max-width: 16ch; text-wrap: balance;
}
h1.hero-title .accent { color: var(--blue); }
.hero-sub {
  margin-top: 0; font-size: 20px; color: var(--ink-2);
  max-width: 46ch; line-height: 1.55; text-wrap: pretty;
}
.hero-cta { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.hero-note { font-family: var(--mono); font-size: 13px; color: var(--ink-3); }

/* command line snippet */
.cmd {
  margin-top: 30px; max-width: 540px;
  background: #0b0c0e; color: #e8eaed; border-radius: 11px;
  font-family: var(--mono); font-size: 14.5px;
  overflow: hidden; border: 1px solid #1a1c20;
}
.cmd-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 11px 14px; border-bottom: 1px solid #1a1c20;
}
.cmd-bar .tl { width: 11px; height: 11px; border-radius: 50%; background: #2a2d33; }
.cmd-bar span.t { margin-left: 8px; color: #6b7079; font-size: 12px; letter-spacing: 0.04em; }
.cmd-body { padding: 16px 18px; line-height: 1.9; }
.cmd-body .pr { color: #4f8cff; user-select: none; }
.cmd-body .cm { color: #5e636c; }
.cmd-body .ok { color: #43d39e; }

/* ---------- Screenshot frame ---------- */
.shot-wrap { margin-top: 64px; }
.browser {
  border-radius: 14px; overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 1px 2px rgba(11,12,14,.04), 0 24px 60px -24px rgba(11,12,14,.28);
  background: #fff;
}
.browser-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; background: var(--paper-3);
  border-bottom: 1px solid var(--line);
}
.browser-bar .tl { width: 12px; height: 12px; border-radius: 50%; background: #d3d5da; }
.browser-url {
  margin-left: 14px; flex: 1; max-width: 420px;
  font-family: var(--mono); font-size: 13px; color: var(--ink-3);
  background: #fff; border: 1px solid var(--line);
  border-radius: 7px; padding: 6px 12px;
}
.browser img { display: block; width: 100%; }

/* ---------- Logo strip ---------- */
.strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper-2); }
.strip-inner { display: flex; align-items: center; gap: 14px 40px; flex-wrap: wrap; padding: 26px 0; }
.strip-label { font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); }
.strip-tags { display: flex; gap: 12px 28px; flex-wrap: wrap; }
.strip-tags span { font-weight: 600; font-size: 17px; color: var(--ink-2); }

/* ---------- Section ---------- */
section.block { padding: 96px 0; }
.sec-head { max-width: var(--sec-maxw); margin-bottom: 52px; }
.sec-head h2 {
  font-family: var(--head-font);
  font-size: clamp(30px, 3.6vw, 42px); font-weight: 700;
  letter-spacing: -0.018em; line-height: 1.1; margin-top: 14px; text-wrap: balance;
}
.sec-head p { margin-top: 16px; font-size: 18px; color: var(--ink-2); max-width: 62ch; }

/* ---------- Features grid ---------- */
.feat-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line); border-radius: 14px; overflow: hidden;
}
.feat {
  background: var(--paper); padding: 32px 30px 34px;
  display: flex; flex-direction: column; gap: 12px; transition: background .15s;
}
.feat:hover { background: var(--paper-2); }
.feat .ic {
  width: 42px; height: 42px; border-radius: 10px; margin-bottom: 6px;
  display: grid; place-items: center; background: var(--blue-soft); color: var(--blue);
}
.feat .ic svg { width: 22px; height: 22px; }
.feat h3 { font-size: 19px; font-weight: 600; letter-spacing: -0.01em; }
.feat p { font-size: 15.5px; color: var(--ink-2); line-height: 1.55; }
.feat code { font-family: var(--mono); font-size: 13.5px; background: var(--paper-3); padding: 1px 6px; border-radius: 5px; color: var(--ink); }

/* ---------- Split: expressions ---------- */
.expr { background: var(--paper-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.split { display: grid; grid-template-columns: 1.05fr 1fr; gap: 64px; align-items: center; }
.split .copy h2 { font-size: clamp(28px, 3.2vw, 38px); font-weight: 700; letter-spacing: -0.018em; line-height: 1.12; margin-top: 14px; }
.split .copy p { margin-top: 18px; font-size: 18px; color: var(--ink-2); }
.tokens { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 26px; }
.tokens .tok { font-family: var(--mono); font-size: 14px; padding: 7px 13px; border-radius: 8px; background: #fff; border: 1px solid var(--line); color: var(--indigo); font-weight: 500; }

.code-card {
  background: #0b0c0e; border-radius: 13px; border: 1px solid #1a1c20;
  font-family: var(--mono); font-size: 14.5px; color: #e8eaed; overflow: hidden;
  box-shadow: 0 24px 60px -28px rgba(11,12,14,.4);
}
.code-card .cc-bar { padding: 11px 16px; border-bottom: 1px solid #1a1c20; display: flex; align-items: center; gap: 7px; }
.code-card .cc-bar .tl { width: 11px; height: 11px; border-radius: 50%; background: #2a2d33; }
.code-card .cc-bar span { margin-left: 8px; color: #6b7079; font-size: 12px; }
.code-card pre { padding: 20px 22px; line-height: 1.85; overflow-x: auto; }
.k { color: #4f8cff; }
.s { color: #43d39e; }
.p { color: #c792ea; }
.c { color: #5e636c; }
.n { color: #f0a868; }

/* ---------- Architecture ---------- */
.arch-flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: stretch; gap: 0; margin-top: 8px; }
.node {
  border: 1px solid var(--line); border-radius: 14px; padding: 30px 28px;
  background: var(--paper); display: flex; flex-direction: column; gap: 10px;
}
.node .tag { font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); }
.node h3 { font-size: 21px; font-weight: 600; letter-spacing: -0.01em; }
.node p { font-size: 15px; color: var(--ink-2); }
.node .stack { margin-top: 6px; display: flex; flex-wrap: wrap; gap: 6px; }
.node .stack b { font-family: var(--mono); font-weight: 500; font-size: 12.5px; color: var(--blue); background: var(--blue-soft); padding: 3px 9px; border-radius: 6px; }
.arrow { display: grid; place-items: center; padding: 0 20px; }
.arrow .lbl { font-family: var(--mono); font-size: 12px; color: var(--ink-3); margin-bottom: 6px; text-align: center; }
.arrow svg { width: 46px; height: 18px; color: #c2c5cb; }

/* ---------- Distribution ---------- */
.dist { background: color-mix(in srgb, var(--blue) 90%, #000); color: #e7e9fb; }
.dist .sec-head h2 { color: #fff; }
.dist .sec-head p { color: color-mix(in srgb, var(--blue) 15%, #fff); }
.dist .eyebrow { color: color-mix(in srgb, var(--blue) 22%, #fff); }
.dist-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.dist-card {
  background: color-mix(in srgb, var(--blue) 72%, #000); border: 1px solid rgba(255,255,255,0.16);
  border-radius: 14px; padding: 30px 28px; display: flex; flex-direction: column; gap: 14px;
}
.dist-card .n { font-family: var(--mono); font-size: 13px; color: color-mix(in srgb, var(--blue) 22%, #fff); }
.dist-card h3 { font-size: 21px; font-weight: 600; color: #fff; }
.dist-card p { font-size: 15px; color: color-mix(in srgb, var(--blue) 15%, #fff); line-height: 1.55; }
.dist-card .cmdline {
  margin-top: auto; font-family: var(--mono); font-size: 13.5px; color: #e7e9fb;
  background: rgba(0,0,0,0.32); border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px; padding: 12px 14px; overflow-x: auto;
}
.dist-card .cmdline .pr { color: color-mix(in srgb, var(--blue) 30%, #fff); }

/* ---------- Final CTA ---------- */
.cta-band { padding: 104px 0; text-align: center; }
.cta-band h2 { font-family: var(--head-font); font-size: clamp(32px, 4vw, 50px); font-weight: 700; letter-spacing: -0.02em; line-height: 1.08; max-width: 18ch; margin: 0 auto; text-wrap: balance; }
.cta-band p { margin: 20px auto 0; font-size: 19px; color: var(--ink-2); max-width: 50ch; }
.cta-band .hero-cta { justify-content: center; margin-top: 40px; }

/* ---------- FAQ ---------- */
.faq-list { display: flex; flex-direction: column; gap: 12px; max-width: 820px; }
.faq-item {
  border: 1px solid var(--line); border-radius: 12px;
  background: var(--paper); padding: 4px 20px;
  transition: border-color .15s, box-shadow .15s;
}
.faq-item[open] { border-color: #cdcfd4; box-shadow: 0 1px 2px rgba(11,12,14,.04), 0 16px 40px -30px rgba(11,12,14,.22); }
.faq-item summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  font-family: var(--head-font); font-size: 18px; font-weight: 600;
  color: var(--ink); padding: 16px 0;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; font-family: var(--mono); font-size: 22px; font-weight: 400;
  color: var(--ink-3); line-height: 1; transition: transform .15s;
}
.faq-item[open] summary::after { content: "\2212"; }
.faq-item p { padding: 0 0 18px; font-size: 16px; color: var(--ink-2); max-width: 70ch; }

/* ---------- Footer ---------- */
footer.foot { border-top: 1px solid var(--line); background: var(--paper-2); padding: 48px 0 56px; }
.foot-inner { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; align-items: flex-start; }
.foot-left { max-width: 38ch; }
.foot-left p { margin-top: 14px; font-size: 14.5px; color: var(--ink-3); }
.foot-cols { display: flex; gap: 64px; flex-wrap: wrap; }
.foot-col h4 { font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 14px; }
.foot-col a { display: block; font-size: 15px; color: var(--ink-2); margin-bottom: 10px; }
.foot-col a:hover { color: var(--ink); }
.foot-bottom { margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-family: var(--mono); font-size: 13px; color: var(--ink-3); }

/* ---------- Trial request form ---------- */
.trial-main { padding: 64px 0 96px; }
.trial-card {
  max-width: 540px; margin: 0 auto;
  border: 1px solid var(--line); border-radius: 16px;
  background: var(--paper); padding: 40px 40px 44px;
  box-shadow: 0 1px 2px rgba(11,12,14,.04), 0 24px 60px -32px rgba(11,12,14,.22);
}
.trial-card h1 { font-family: var(--head-font); font-size: 30px; font-weight: 700; letter-spacing: -0.018em; }
.trial-card .lead { margin-top: 12px; font-size: 16px; color: var(--ink-2); }
.trial-form { margin-top: 28px; display: flex; flex-direction: column; gap: 20px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-size: 14px; font-weight: 600; color: var(--ink); }
.field .req { color: var(--blue); }
.field input[type="text"],
.field input[type="email"],
.field textarea {
  font-family: var(--sans); font-size: 15px; color: var(--ink);
  padding: 11px 13px; border: 1px solid var(--line); border-radius: 9px;
  background: var(--paper); transition: border-color .15s, box-shadow .15s;
}
.field textarea {
  font-family: var(--mono); font-size: 13px; line-height: 1.5;
  resize: vertical; min-height: 108px;
}
.field input:focus,
.field textarea:focus {
  outline: none; border-color: var(--blue);
  box-shadow: 0 0 0 3px var(--blue-soft);
}
.field .hint { font-size: 13px; color: var(--ink-3); }
.feature-opts { display: flex; flex-direction: column; gap: 10px; margin-top: 2px; }
.feature-opt {
  display: flex; align-items: flex-start; gap: 11px;
  border: 1px solid var(--line); border-radius: 10px; padding: 13px 15px;
  cursor: pointer; transition: border-color .15s, background .15s;
}
.feature-opt:hover { border-color: #cdcfd4; background: var(--paper-2); }
.feature-opt input { margin-top: 3px; accent-color: var(--blue); width: 16px; height: 16px; }
.feature-opt .ft-name { font-weight: 600; font-size: 15px; }
.feature-opt .ft-desc { font-size: 13.5px; color: var(--ink-3); }
.feature-opt .ft-text { display: flex; flex-direction: column; gap: 2px; }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.trial-submit { margin-top: 6px; justify-content: center; }
.notice { border-radius: 11px; padding: 16px 18px; font-size: 15px; line-height: 1.5; }
.notice.ok { background: var(--blue-soft); border: 1px solid #ddddfb; color: var(--teal); }
.notice.err { background: #fdecec; border: 1px solid #f6caca; color: #8c1d1d; }
.notice h2 { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.trial-foot-note { margin-top: 22px; font-family: var(--mono); font-size: 12.5px; color: var(--ink-3); text-align: center; }

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .nav-links { display: none; }
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .dist-grid { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .arch-flow { grid-template-columns: 1fr; gap: 0; }
  .arch-flow .arrow { padding: 14px 0; }
  .arch-flow .arrow svg { transform: rotate(90deg); }
}
@media (max-width: 620px) {
  .wrap { padding: 0 20px; }
  .nav-inner { gap: 14px; height: 64px; }
  .wordmark { font-size: 19px; }
  .wordmark svg,
  .wordmark img { width: 34px; height: 34px; }
  .nav-actions { gap: 8px; }
  .nav-actions .btn { padding: 9px 14px; font-size: 14px; }
  .nav-actions .btn-ghost { display: none; }
  .hero { padding: 56px 0 40px; }
  .feat-grid { grid-template-columns: 1fr; }
  section.block { padding: 68px 0; }
  .strip-inner { gap: 12px 24px; }
}