:root {
  --ink: #0f1115;
  --ink-2: #181b22;
  --paper: #f6f4ee;
  --tint: #ece9df;
  --line: #d9d5c8;
  --muted: #5c5f66;
  --lime: #c6f432;
  --lime-d: #8fb500;
  --radius: 18px;
  --font: "Bricolage Grotesque", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: var(--font);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.wrap { width: min(1160px, 100% - 40px); margin-inline: auto; }
.muted { color: var(--muted); }

h1, h2, h3 { line-height: 1.08; letter-spacing: -0.03em; font-weight: 800; }
h1 { font-size: clamp(2.4rem, 5.4vw, 4.4rem); }
h1 em { font-style: normal; background: var(--lime); padding: 0 .15em; border-radius: 8px; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); margin-bottom: 14px; }
h3 { font-size: 1.4rem; margin-bottom: 10px; letter-spacing: -0.02em; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em;
  color: var(--muted); margin-bottom: 18px;
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--lime-d); box-shadow: 0 0 0 4px rgba(143,181,0,.2); }

/* buttons */
.btn {
  display: inline-block; padding: 14px 24px; border-radius: 999px; border: 0;
  background: var(--ink); color: var(--paper); font: 600 1rem var(--font);
  text-decoration: none; cursor: pointer; transition: transform .15s, background .15s;
}
.btn:hover { transform: translateY(-2px); background: #000; }
.btn--sm { padding: 9px 18px; font-size: .92rem; background: var(--ink); }
.btn--ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--paper); }
:focus-visible { outline: 3px solid var(--lime-d); outline-offset: 3px; }

/* nav */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(246,244,238,.85); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.2rem; text-decoration: none; letter-spacing: -0.02em; }
.logo__mark { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 10px; background: var(--ink); color: var(--lime); font: 500 .85rem var(--mono); }
.logo__dim { color: var(--muted); font-weight: 600; }
.nav__links { display: flex; align-items: center; gap: 28px; }
.nav__links a:not(.btn) { text-decoration: none; font-weight: 500; color: var(--muted); transition: color .15s; }
.nav__links a:not(.btn):hover { color: var(--ink); }
.nav__toggle { display: none; background: none; border: 0; width: 44px; height: 44px; cursor: pointer; position: relative; }
.nav__toggle span { position: absolute; left: 11px; right: 11px; height: 2px; background: var(--ink); transition: transform .2s; }
.nav__toggle span:first-child { top: 17px; }
.nav__toggle span:last-child { top: 25px; }
.nav__toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }

/* hero */
.hero { padding: clamp(48px, 8vw, 110px) 0 clamp(40px, 6vw, 80px); }
.hero__grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 56px; align-items: center; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 52ch; margin: 24px 0 32px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; }
.stats { display: flex; gap: 36px; margin-top: 48px; padding-top: 28px; border-top: 1px solid var(--line); }
.stats dt { font-size: 2rem; font-weight: 800; letter-spacing: -0.03em; }
.stats dd { font-size: .88rem; color: var(--muted); }

.term { background: var(--ink); border-radius: var(--radius); box-shadow: 14px 14px 0 var(--lime); overflow: hidden; transform: rotate(1.2deg); }
.term__bar { display: flex; align-items: center; gap: 7px; padding: 14px 18px; background: var(--ink-2); }
.term__bar i { width: 11px; height: 11px; border-radius: 50%; background: #3a3f4a; }
.term__bar i:first-child { background: #ff5f57; }
.term__bar i:nth-child(2) { background: #febc2e; }
.term__bar i:nth-child(3) { background: #28c840; }
.term__bar span { margin-left: 10px; font: .8rem var(--mono); color: #8b909c; }
.term__body { padding: 24px; min-height: 330px; font: 400 .92rem/1.75 var(--mono); color: #d7dae0; white-space: pre-wrap; }
.term__body .k { color: #c6f432; }
.term__body .s { color: #ffb86b; }
.term__body .c { color: #6b7080; }
.caret { display: inline-block; width: 8px; height: 1.1em; background: var(--lime); vertical-align: text-bottom; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* marquee */
.marquee { overflow: hidden; background: var(--ink); color: var(--paper); padding: 18px 0; }
.marquee__track { display: flex; gap: 48px; width: max-content; animation: slide 32s linear infinite; font: 500 1rem var(--mono); }
.marquee__track span::before { content: "✦"; color: var(--lime); margin-right: 48px; }
@keyframes slide { to { transform: translateX(-50%); } }

/* sections */
.section { padding: clamp(64px, 9vw, 120px) 0; }
.section--dark { background: var(--ink); color: var(--paper); }
.section--dark .eyebrow { color: #8b909c; }
.section--tint { background: var(--tint); }
.section__head { max-width: 640px; margin-bottom: 48px; }

/* cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; transition: transform .2s, box-shadow .2s; }
.card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px -20px rgba(15,17,21,.35); }
.card--lg { grid-row: span 2; background: var(--ink); color: var(--paper); border-color: var(--ink); }
.card--lg p { color: #b7bbc6; }
.card--accent { grid-column: span 2; background: var(--lime); border-color: var(--lime); }
.card__no { display: block; font: 500 .85rem var(--mono); margin-bottom: 40px; color: var(--muted); }
.card--lg .card__no { color: var(--lime); }
.card--accent .card__no { color: rgba(15,17,21,.6); }
.ticks { list-style: none; margin-top: 24px; display: grid; gap: 10px; font-size: .95rem; }
.ticks li { padding-left: 26px; position: relative; color: #d7dae0; }
.ticks li::before { content: "→"; position: absolute; left: 0; color: var(--lime); }

/* tabs & path */
.tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 36px; }
.tabs button { padding: 10px 20px; border-radius: 999px; border: 1.5px solid #3a3f4a; background: transparent; color: var(--paper); font: 500 .95rem var(--font); cursor: pointer; transition: .15s; }
.tabs button:hover { border-color: var(--lime); }
.tabs button[aria-selected="true"] { background: var(--lime); border-color: var(--lime); color: var(--ink); }
.path { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: s; }
.path__step { position: relative; padding: 28px 24px; border: 1px solid #2a2e37; border-radius: var(--radius); background: var(--ink-2); animation: rise .4s both; }
.path__step:nth-child(2) { animation-delay: .06s; }
.path__step:nth-child(3) { animation-delay: .12s; }
.path__step:nth-child(4) { animation-delay: .18s; }
.path__step small { font: 500 .78rem var(--mono); color: var(--lime); text-transform: uppercase; letter-spacing: .06em; }
.path__step h3 { margin: 12px 0 8px; font-size: 1.2rem; }
.path__step p { font-size: .92rem; color: #a3a8b4; }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } }

/* method */
.method { display: grid; grid-template-columns: 1fr 1.1fr; gap: 64px; align-items: start; }
.steps { list-style: none; counter-reset: n; display: grid; gap: 14px; }
.steps li { counter-increment: n; display: grid; grid-template-columns: 56px 1fr; column-gap: 16px; padding: 22px 24px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.steps li::before { content: counter(n, decimal-leading-zero); grid-row: span 2; font: 500 1.3rem var(--mono); color: var(--lime-d); }
.steps b { font-size: 1.15rem; }
.steps span { color: var(--muted); }

/* faq */
.faq { display: grid; grid-template-columns: 1fr 1.5fr; gap: 64px; }
.faq__list { display: grid; gap: 12px; }
details { background: var(--paper); border-radius: 14px; padding: 20px 24px; border: 1px solid var(--line); }
summary { font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; font: 400 1.5rem/1 var(--mono); transition: transform .2s; }
details[open] summary::after { transform: rotate(45deg); }
details p { margin-top: 12px; color: var(--muted); }

/* contact */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.contact__mail { margin-top: 28px; font-family: var(--mono); }
.form { display: grid; gap: 16px; background: #fff; padding: 32px; border-radius: var(--radius); border: 1px solid var(--line); }
.form label { display: grid; gap: 6px; font-weight: 500; font-size: .92rem; }
.form input, .form select, .form textarea { font: 400 1rem var(--font); padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 10px; background: var(--paper); width: 100%; }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--ink); }
.form input.err { border-color: #d33; }
.form__note { font-size: .92rem; min-height: 1.4em; }

/* footer */
.footer { background: var(--ink); color: #a3a8b4; padding: 36px 0; }
.footer .logo { color: var(--paper); }
.footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; font-size: .9rem; }

/* responsive */
@media (max-width: 900px) {
  .hero__grid, .method, .faq, .contact { grid-template-columns: 1fr; gap: 40px; }
  .cards { grid-template-columns: 1fr 1fr; }
  .card--lg { grid-row: auto; grid-column: span 2; }
  .card--accent { grid-column: span 2; }
  .path { grid-template-columns: 1fr 1fr; }
  .term { transform: none; }
}
@media (max-width: 720px) {
  .nav__toggle { display: block; }
  .nav__links { position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--paper); border-bottom: 1px solid var(--line); padding: 8px 20px 20px; display: none; }
  .nav__links.open { display: flex; }
  .nav__links a:not(.btn) { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav__links .btn { margin-top: 14px; text-align: center; }
}
@media (max-width: 560px) {
  .cards, .path { grid-template-columns: 1fr; }
  .card--lg, .card--accent { grid-column: auto; }
  .stats { gap: 20px; flex-wrap: wrap; }
  .term__body { font-size: .8rem; padding: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}