/* ============================================================
   OLIVE — Product Design System  ·  Terminal Luxe
   Dark-only. Mona Sans + Geist Mono. One lime signal.
   Reference skeleton: near.org. Brand colour: founder palette.
   ============================================================ */

/* ---------- Fonts (self-hosted, SIL OFL) ---------- */
@font-face {
  font-family: "Mona Sans";
  src: url("../fonts/MonaSans-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Mona Sans";
  src: url("../fonts/MonaSans-Medium.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Mona Sans";
  src: url("../fonts/MonaSans-SemiBold.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Mona Sans";
  src: url("../fonts/MonaSans-Bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Geist Mono";
  src: url("../fonts/GeistMono-latin.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

/* ---------- Tokens ---------- */
:root {
  --bg: #0B0E07;
  --surface: #0F140A;
  --raised: #141A0E;

  --line: #252F12;
  --line-strong: #283319;

  --cream: #FCFFC0;
  --text: #F2F3D4;
  --text-2: #C3C7A2;
  --text-3: #969A78;
  --text-4: #6F7357;

  --olive: #729246;
  --brand-sage: #86B69B;
  --gold: #8C6D00;
  --signal: #ACDA4D;
  --highlight: #E2E873;
  --on-signal: #0B0E07;
  --wood: #8C7A3A;

  --font-sans: "Mona Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --section-max: 1480px;
  --content-max: 1280px;
  --gutter: clamp(24px, 7vw, 100px);
  --rhythm: clamp(64px, 10vw, 128px);
  --radius: 4px;

  --motion-fast: 150ms;
  --motion-standard: 250ms;
  --motion-slow: 350ms;
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
:focus-visible { outline: 1px solid var(--signal); outline-offset: 3px; }
::selection { background: var(--signal); color: var(--on-signal); }

/* grain on the whole dark ground, 3% */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}
main, header, footer { position: relative; z-index: 2; }

/* ---------- Type ---------- */
.mono {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-3);
}
.display-l {
  font-family: var(--font-sans);
  font-size: 56px;
  font-weight: 500;
  line-height: 1.07;
  letter-spacing: -.025em;
  text-wrap: balance;
}
.display-m { font-size: 48px; font-weight: 500; line-height: 1.08; letter-spacing: -.02em; }
.h2 { font-size: 32px; font-weight: 500; line-height: 1.12; letter-spacing: -.02em; }
.h3 { font-size: 24px; font-weight: 500; line-height: 1.33; letter-spacing: -.01em; }
.h5 { font-size: 24px; font-weight: 500; line-height: 1.25; letter-spacing: -.01em; }
.body-l { font-size: 16px; font-weight: 400; line-height: 1.5; color: var(--text-2); }
.body-m { font-size: 16px; font-weight: 400; line-height: 1.5; color: var(--text-2); }
@media (min-width: 768px) {
  .display-l { font-size: 80px; line-height: 1; }
  .display-m { font-size: 64px; line-height: 1; }
  .h2 { font-size: 44px; line-height: 1.09; }
  .h3 { font-size: 40px; line-height: 1.2; }
  .body-l { font-size: 20px; line-height: 1.4; }
}
.signal { color: var(--signal); }
.dim { color: var(--text-3); }
.cream { color: var(--cream); }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--section-max); margin-inline: auto; padding-inline: var(--gutter); }
section[id] { scroll-margin-top: 72px; }
.section { padding-block: var(--rhythm); border-top: 1px solid var(--line); }
.section--surface { background: var(--surface); }
.sec-head { display: grid; grid-template-columns: 1fr; gap: 16px; margin-bottom: 48px; }
.sec-index { color: var(--signal); }
.sec-lede { max-width: 620px; }
@media (min-width: 900px) {
  .sec-head { grid-template-columns: 1fr 1fr; align-items: end; column-gap: 64px; }
  .sec-head .sec-title { grid-column: 1; }
  .sec-head .sec-lede { grid-column: 2; justify-self: start; align-self: end; }
  .sec-head .sec-index { grid-column: 1 / -1; }
}

/* ---------- Buttons ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 52px;
  padding: 0 20px;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  overflow: hidden;
  transition: color var(--motion-standard) var(--ease-out),
              border-color var(--motion-standard) var(--ease-out);
}
.btn__arrow { transition: transform var(--motion-standard) var(--ease-out); }
.btn:hover .btn__arrow { transform: translateX(4px); }
.btn--primary { background: var(--signal); color: var(--on-signal); }
.btn--primary::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--cream);
  transform: translateX(-101%);
  transition: transform var(--motion-standard) var(--ease-out);
}
.btn--primary:hover::before { transform: none; }
.btn--primary > * { position: relative; z-index: 1; }
.btn--secondary { border: 1px solid var(--line-strong); color: var(--text); }
.btn--secondary:hover { border-color: var(--signal); color: var(--signal); }
.btn--ghost { border: 1px solid transparent; color: var(--text-2); padding-inline: 4px; }
.btn--ghost:hover { color: var(--highlight); }
.btn--sm { height: 40px; padding-inline: 16px; }

/* text link */
.tlink {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text);
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 6px;
  transition: color var(--motion-fast) var(--ease-out), border-color var(--motion-fast) var(--ease-out);
}
.tlink svg { transition: transform var(--motion-standard) var(--ease-out); }
.tlink:hover { color: var(--signal); border-color: var(--signal); }
.tlink:hover svg { transform: translateX(4px); }

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  height: 72px;
  border-bottom: 1px solid transparent;
  transition: background var(--motion-standard) var(--ease-out),
              border-color var(--motion-standard) var(--ease-out),
              backdrop-filter var(--motion-standard);
}
.nav--solid {
  background: rgba(15, 20, 10, .82);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}
.nav__inner {
  max-width: var(--section-max);
  height: 100%;
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand__mark { width: 24px; height: 24px; flex: none; color: var(--cream); }
.brand__wordmark { width: auto; height: 20px; flex: none; color: var(--cream); }
.brand__desc {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: .18em;
  color: var(--text-3);
  text-transform: uppercase;
  border-left: 1px solid var(--line-strong);
  padding-left: 10px;
  margin-left: 2px;
}
.nav__links { display: flex; align-items: center; gap: 28px; }
.nav__links a.mono { color: var(--text-3); transition: color var(--motion-fast); }
.nav__links a.mono:hover { color: var(--cream); }
.nav__cta { flex: none; }
@media (max-width: 1023px) {
  .nav__links { display: none; }
  .brand__desc { display: none; }
  .nav__inner { gap: 12px; }
  .brand__wordmark { height: 18px; }
}
@media (max-width: 1279px) { .brand__desc { display: none; } }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  padding-block: 160px calc(var(--rhythm) * .7);
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero__glyphs {
  position: absolute;
  z-index: 1;
  right: 6vw;
  bottom: 13vh;
  color: var(--olive);
  opacity: .35;
  pointer-events: none;
}
.hero__glyphs pre { font-family: var(--font-mono); font-size: 10px; line-height: 1.9; letter-spacing: .22em; }
.hero__label {
  position: absolute;
  z-index: 1;
  right: 2.6vw;
  top: 30vh;
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--text-4);
  opacity: .75;
  pointer-events: none;
}
.ascii-tree {
  position: absolute;
  z-index: 1;
  pointer-events: none;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1.1;
  white-space: pre;
  width: max-content;
  color: var(--olive);
}
.ascii-tree--main { right: 2vw; bottom: 0; }
.ascii-tree--second { right: 2vw; bottom: 7vh; font-size: 12px; opacity: .55; }
.ascii-tree--mobile { display: none; }
.ascii-tree .ln { display: block; white-space: pre; min-height: 1.1em; }
.ascii-tree .c-d { color: var(--olive); opacity: .78; }
.ascii-tree .c-l { color: var(--olive); }
.ascii-tree .c-s { color: var(--text-2); }
.ascii-tree .c-h { color: var(--highlight); }
.ascii-tree .c-o { color: var(--cream); }
.ascii-tree .c-g { color: var(--signal); }
.ascii-tree .c-w { color: var(--wood); }
.ascii-tree .c-b { color: #8AA452; }
@media (max-width: 1279px) {
  .ascii-tree--main, .ascii-tree--second { display: none; }
  .ascii-tree--mobile { display: block; right: -6vw; top: 4vh; font-size: 9px; opacity: .85; }
  .hero__glyphs, .hero__label { display: none; }
}
@media (min-width: 900px) and (max-width: 1279px) {
  .ascii-tree--mobile { right: -8vw; font-size: 10px; }
}

.hero__scrim {
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    linear-gradient(90deg, rgba(11,14,7,.94) 0%, rgba(11,14,7,.80) 38%, rgba(11,14,7,.45) 58%, rgba(11,14,7,.12) 78%, rgba(11,14,7,.30) 100%),
    linear-gradient(180deg, rgba(11,14,7,.55) 0%, rgba(11,14,7,0) 28%, rgba(11,14,7,.85) 100%);
}
.hero__inner { position: relative; z-index: 3; }
.hero__meta { color: var(--signal); margin-bottom: 24px; }
@media (max-width: 479px) { .hero__meta { font-size: 10px; letter-spacing: .1em; } }
.hero__h1 { max-width: 15ch; color: var(--cream); }
.hero__lede { max-width: 620px; margin-top: 28px; color: var(--text-2); }
.hero__ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 40px; }
.hero__ticker {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  margin-top: 56px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--text-3);
  text-transform: uppercase;
}
.hero__ticker span { display: inline-flex; align-items: center; gap: 10px; }
.hero__ticker span::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--signal); }
.hero__foot {
  margin-top: 56px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px 32px;
  flex-wrap: wrap;
}
.hero__foot .hero__ticker { margin-top: 0; padding-top: 0; border-top: 0; }
/* ---------- Swatches ---------- */
.swatches { display: grid; grid-template-columns: 1fr; border-top: 1px solid var(--line); }
.swatch { border-bottom: 1px solid var(--line); padding-block: 20px; display: grid; grid-template-columns: 64px 1fr; gap: 16px; align-items: center; }
.swatch__chip { width: 64px; height: 64px; border: 1px solid var(--line-strong); border-radius: var(--radius); }
.swatch__row { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.swatch__name { font-family: var(--font-mono); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--cream); }
.swatch__hex { font-family: var(--font-mono); font-size: 12px; color: var(--text-3); }
.swatch__role { font-size: 15px; color: var(--text-2); margin-top: 4px; }
.swatch__ratio { font-family: var(--font-mono); font-size: 11px; color: var(--text-3); }
@media (min-width: 640px) { .swatches { grid-template-columns: 1fr 1fr; column-gap: 48px; } .swatch:nth-last-child(-n+1) { border-bottom: 1px solid var(--line); } }
@media (min-width: 1100px) { .swatches { grid-template-columns: repeat(3, 1fr); } }
.swatch__chip--light { border-color: var(--line-strong); }

/* ---------- Type specimen ---------- */
.type-display {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding-block: 40px;
  margin-bottom: 8px;
}
.type-display__sample {
  font-size: clamp(40px, 6vw, 80px);
  line-height: 1.02;
  letter-spacing: -.03em;
  font-weight: 500;
  color: var(--cream);
  max-width: 18ch;
}
.type-display__meta { margin-top: 24px; color: var(--text-3); }
.type-row { display: grid; grid-template-columns: 1fr; gap: 8px; padding-block: 18px; border-bottom: 1px solid var(--line); }
.type-row__label { color: var(--signal); }
.type-row__sample { color: var(--cream); }
.type-row__meta { color: var(--text-3); }
@media (min-width: 900px) {
  .type-row { grid-template-columns: 220px 1fr 200px; align-items: baseline; gap: 24px; }
  .type-row__meta { justify-self: end; text-align: right; }
}

/* ---------- Components ---------- */
.comp-grid { display: grid; grid-template-columns: 1fr; gap: 40px; }
@media (min-width: 900px) { .comp-grid { grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; } }
.comp-block { border-top: 1px solid var(--line); padding-top: 24px; }
.comp-block > .mono { margin-bottom: 20px; display: block; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }
.chip-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  height: 28px; padding: 0 10px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--text-3);
}
.chip::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.chip--live { color: var(--signal); border-color: rgba(172,218,77,.35); }
.chip--dev { color: var(--highlight); border-color: rgba(226,232,115,.3); }
.chip--plan { color: var(--text-3); }

.module {
  position: relative;
  background: var(--raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color var(--motion-standard) var(--ease-out), background var(--motion-standard) var(--ease-out);
}
.module:hover { border-color: var(--signal); }
.module__top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 24px; }
.module__idx { font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em; color: var(--signal); }
.module__title { font-size: 24px; font-weight: 500; letter-spacing: -.01em; color: var(--cream); }
.module__desc { margin-top: 10px; color: var(--text-2); font-size: 15px; line-height: 1.55; }
.module__foot { margin-top: 24px; padding-top: 14px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 12px; }

/* corner ticks */
.module::before, .module::after {
  content: ""; position: absolute; width: 7px; height: 7px; border-color: var(--signal); border-style: solid; opacity: .5;
}
.module::before { top: -1px; left: -1px; border-width: 1px 0 0 1px; }
.module::after { bottom: -1px; right: -1px; border-width: 0 1px 1px 0; }

/* ---------- Architecture ---------- */
.diagram-wrap { border-top: 1px solid var(--line); padding-top: 32px; }
.diagram { width: 100%; height: auto; }
.diagram text { font-family: var(--font-mono); }
.flow { stroke-dasharray: 3 11; animation: flow 8s linear infinite; }
@keyframes flow { to { stroke-dashoffset: -140; } }
@media (prefers-reduced-motion: reduce) { .flow { animation: none; } }
.pillars-list { display: grid; gap: 0; margin-top: 32px; }
.pillars-list li { list-style: none; border-top: 1px solid var(--line); padding: 18px 0; display: grid; grid-template-columns: 40px 1fr; gap: 16px; }
.pillars-list .n { font-family: var(--font-mono); font-size: 12px; color: var(--signal); }
.pillars-list strong { display: block; font-size: 18px; font-weight: 500; color: var(--cream); margin-bottom: 4px; }
.pillars-list span { color: var(--text-2); font-size: 15px; }
.pillars-list li.pillars-list__wallet { background: var(--raised); border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 18px; margin-bottom: 24px; }
.pillars-list__wallet .n { color: var(--cream); }
.pillars-list__wallet strong { color: var(--signal); }
@media (min-width: 900px) { .pillars-list { display: none; } }
@media (max-width: 899px) { .diagram { display: none; } .diagram-wrap { border-top: 0; padding-top: 0; } }

/* ---------- Motion ---------- */
.motion-grid { display: grid; grid-template-columns: 1fr; border-top: 1px solid var(--line); }
.motion-item { border-bottom: 1px solid var(--line); padding: 20px 0; display: grid; grid-template-columns: 1fr; gap: 6px; }
@media (min-width: 900px) { .motion-item { grid-template-columns: 220px 1fr 1fr; gap: 24px; align-items: baseline; } }
.motion-item .k { color: var(--signal); }
.motion-item .v { color: var(--text-2); font-size: 15px; }
.wave-demo { margin-top: 32px; display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.wave-demo .wave { font-size: clamp(32px, 5vw, 56px); font-weight: 500; letter-spacing: -.02em; color: var(--cream); cursor: default; }
.wave-demo .hint { color: var(--text-3); }
.wave .ch { display: inline-block; }
/* JS adds .wave--on while hovered */
.wave--on .ch { animation: wave 2.5s ease-out infinite; animation-delay: calc(var(--i) * .1s); }
@keyframes wave {
  0%, 100% { color: var(--cream); transform: translateY(0); }
  40% { color: var(--signal); transform: translateY(-3px); }
  70% { color: var(--highlight); transform: translateY(0); }
}

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line-strong); background: #050604; padding-block: var(--rhythm) 32px; }
.footer__top { display: grid; grid-template-columns: 1fr; gap: 48px; padding-bottom: 48px; }
.footer__word { display: block; width: min(450px, 44vw); color: var(--cream); }
.footer__wordmark { display: block; width: 100%; height: auto; }
.footer__cols { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.footer__col h4 { font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: .14em; text-transform: uppercase; color: var(--text-3); margin-bottom: 14px; }
.footer__col a, .footer__col p { display: block; color: var(--text-2); font-size: 15px; padding: 4px 0; }
.footer__col a:hover { color: var(--signal); }
.footer__bottom { border-top: 1px solid var(--line); padding-top: 20px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 32px; }
.footer__bottom .mono { color: var(--text-4); font-size: 10px; }
@media (min-width: 900px) {
  .footer__top { grid-template-columns: 1.4fr 1fr; gap: 96px; align-items: start; }
  .footer__word { width: 450px; }
}

/* ---------- Reveal ---------- */
.js [data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity var(--motion-slow) var(--ease-out), transform var(--motion-slow) var(--ease-out); }
.js [data-reveal].in-view { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js [data-reveal] { opacity: 1; transform: none; transition: none; }
  .wave--on .ch { animation: none; }
  .btn--primary::before { transition: none; }
}