@import url("/assets/tokens.css");

* { box-sizing: border-box; }

html {
  min-width: 0;
  background: var(--bg-0);
  color: var(--text);
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
}

body {
  min-width: 0;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 84% -10%, rgb(var(--brand-violet-rgb) / 12%), transparent 34rem),
    radial-gradient(circle at 12% 20%, rgb(var(--brand-cobalt-rgb) / 8%), transparent 30rem),
    var(--bg-0);
  color: var(--text);
  font-family: var(--body);
  font-size: 1rem;
  line-height: 1.65;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgb(255 255 255 / 2.5%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / 2.5%) 1px, transparent 1px);
  background-size: 80px 80px;
  content: "";
  mask-image: linear-gradient(to bottom, black, transparent 72%);
  pointer-events: none;
}

img { display: block; max-width: 100%; height: auto; }
figure { margin: 0; }
a { color: inherit; text-underline-offset: .2em; }
p { margin: 0 0 1rem; }
h1, h2, h3 { margin: 0; color: var(--text-strong); font-family: var(--display); font-weight: 720; letter-spacing: -.045em; line-height: 1.02; }
h1 { font-size: clamp(3.6rem, 8.5vw, 8.5rem); }
h2 { font-size: clamp(2.3rem, 5vw, 5rem); }
h3 { font-size: clamp(1.35rem, 2vw, 2rem); }

.shell { width: var(--shell); margin-inline: auto; }
.mono { font-family: var(--mono); }
.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 9px;
  background: var(--text-strong);
  color: var(--bg-0);
  font-weight: 750;
  transform: translateY(-180%);
}
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid var(--accent-cyan); outline-offset: 4px; border-radius: 5px; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background .2s ease, border-color .2s ease;
}
.site-header.is-scrolled { border-color: var(--line); background: var(--glass); backdrop-filter: blur(18px); }
.header-inner { display: flex; min-height: 76px; align-items: center; justify-content: space-between; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--text-strong); text-decoration: none; }
.brand-mark {
  width: 31px;
  height: 31px;
  flex: 0 0 auto;
  background: var(--brand-gradient);
  mask: var(--brand-mark-mask) center / contain no-repeat;
}
.brand-word { font-size: 1.13rem; font-weight: 780; letter-spacing: -.055em; }
.primary-nav { display: flex; align-items: center; gap: 6px; }
.primary-nav a {
  min-height: 44px;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--text-muted);
  font-size: .82rem;
  font-weight: 680;
  text-decoration: none;
}
.primary-nav a:hover, .primary-nav a[aria-current="page"] { background: rgb(255 255 255 / 5%); color: var(--text-strong); }
.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-1);
  color: var(--text-strong);
  cursor: pointer;
}
.menu-button span, .menu-button::before, .menu-button::after { width: 18px; height: 1px; background: currentColor; content: ""; transition: transform .18s ease, opacity .18s ease; }
.menu-button span { display: block; }
.menu-button[aria-expanded="true"] span { opacity: 0; }
.menu-button[aria-expanded="true"]::before { transform: translateY(1px) rotate(45deg); }
.menu-button[aria-expanded="true"]::after { transform: translateY(-1px) rotate(-45deg); }

.eyebrow {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-bottom: 24px;
  color: var(--accent-cyan);
  font-family: var(--mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.eyebrow::before { width: 30px; height: 1px; background: currentColor; content: ""; }
.lede { max-width: 660px; color: var(--text-muted); font-size: clamp(1.12rem, 1.8vw, 1.45rem); line-height: 1.55; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 19px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-control);
  background: rgb(255 255 255 / 3%);
  color: var(--text-strong);
  font-size: .86rem;
  font-weight: 730;
  text-decoration: none;
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}
.button:hover { border-color: rgb(var(--brand-cyan-rgb) / 70%); background: rgb(255 255 255 / 6%); transform: translateY(-2px); }
.button-primary { border: 0; background: var(--brand-gradient); color: #07080d; }
.button-primary:hover { background: var(--brand-gradient); filter: brightness(1.08); }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--text-strong); font-size: .82rem; font-weight: 710; text-decoration-color: var(--accent-cyan); }
.text-link::after { color: var(--accent-cyan); content: "↗"; }
.text-link.internal::after { content: "→"; }

.hero {
  display: grid;
  min-height: 920px;
  grid-template-columns: minmax(0, 1.05fr) minmax(390px, .95fr);
  align-items: center;
  gap: clamp(54px, 7vw, 110px);
  padding-block: 150px 100px;
}
.hero h1 { max-width: 850px; }
.hero h1 .gradient-text { display: block; background: var(--brand-gradient); background-clip: text; color: transparent; }
.hero .lede { margin-top: 30px; }
.hero-note { margin-top: 48px; color: var(--text-subtle); font-family: var(--mono); font-size: .7rem; letter-spacing: .06em; text-transform: uppercase; }
.hero-visual { position: relative; min-height: 560px; perspective: 1000px; }
.hero-visual::before {
  position: absolute;
  inset: 3% 2% 0 8%;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: radial-gradient(circle, rgb(var(--brand-violet-rgb) / 13%), transparent 62%);
  content: "";
  transform: rotate(-9deg);
}
.index-stack { display: grid; position: absolute; inset: 10% 3% 7% 6%; align-content: center; gap: 12px; transform: rotateY(-8deg) rotateX(2deg); transform-style: preserve-3d; }
.index-header { display: flex; align-items: center; justify-content: space-between; padding: 0 4px 10px; color: var(--text-subtle); font-family: var(--mono); font-size: .65rem; letter-spacing: .12em; text-transform: uppercase; }
.product-signal {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  min-height: 88px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(110deg, rgb(255 255 255 / 6%), rgb(255 255 255 / 2%));
  box-shadow: 0 18px 50px rgb(0 0 0 / 22%);
  backdrop-filter: blur(16px);
}
.product-signal:nth-child(2) { transform: translateX(-22px); }
.product-signal:nth-child(4) { transform: translateX(22px); }
.signal-index { color: var(--text-subtle); font-family: var(--mono); font-size: .72rem; }
.product-signal strong { display: block; color: var(--text-strong); font-size: 1rem; }
.product-signal small { color: var(--text-subtle); font-size: .72rem; }
.signal-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-cyan); box-shadow: 0 0 24px currentColor; }
.product-signal.is-liminal .signal-dot { background: rgb(var(--liminal-primary-rgb)); }
.product-signal.is-magic .signal-dot { background: rgb(var(--magic-primary-rgb)); }
.product-signal.is-zero .signal-dot { background: rgb(var(--zero-primary-rgb)); }
.product-signal.is-currency .signal-dot { background: rgb(var(--currency-primary-rgb)); }

.section { padding-block: clamp(90px, 11vw, 160px); border-top: 1px solid var(--line); }
.section-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .52fr); align-items: end; gap: 50px; margin-bottom: 62px; }
.section-heading p:last-child { max-width: 520px; margin: 0; color: var(--text-muted); }
.product-index { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.index-item { min-height: 250px; padding: 26px 24px 30px 0; border-bottom: 1px solid var(--line); text-decoration: none; }
.index-item + .index-item { padding-left: 24px; border-left: 1px solid var(--line); }
.index-item .index { display: block; margin-bottom: 64px; color: var(--text-subtle); font-family: var(--mono); font-size: .7rem; }
.index-item h3 { margin-bottom: 12px; font-size: 1.08rem; letter-spacing: -.025em; }
.index-item p { margin: 0; color: var(--text-muted); font-size: .81rem; line-height: 1.55; }
.index-item:hover h3 { color: var(--accent-cyan); }

.product-chapter { position: relative; overflow: hidden; padding-block: clamp(100px, 13vw, 190px); border-top: 1px solid var(--line); }
.product-chapter::before { position: absolute; inset: 0; z-index: -1; content: ""; opacity: .9; pointer-events: none; }
.chapter-liminal::before { background: radial-gradient(circle at 82% 48%, rgb(var(--liminal-primary-rgb) / var(--liminal-fade-opacity)), transparent 34rem); }
.chapter-magic::before { background: radial-gradient(circle at 17% 52%, rgb(var(--magic-primary-rgb) / var(--magic-fade-opacity)), transparent 35rem); }
.chapter-zero::before { background: radial-gradient(circle at 82% 50%, rgb(var(--zero-primary-rgb) / var(--zero-fade-opacity)), transparent 34rem); }
.chapter-currency::before { background: radial-gradient(circle at 17% 52%, rgb(var(--currency-primary-rgb) / var(--currency-fade-opacity)), transparent 36rem); }
.chapter-grid { display: grid; grid-template-columns: minmax(0, .88fr) minmax(420px, 1.12fr); align-items: center; gap: clamp(60px, 9vw, 140px); }
.chapter-grid.is-reversed .chapter-copy { order: 2; }
.chapter-grid.is-reversed .product-visual { order: 1; }
.chapter-label { display: flex; align-items: center; gap: 14px; margin-bottom: 32px; color: var(--text-subtle); font-family: var(--mono); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; }
.chapter-label span:first-child { color: var(--text-strong); }
.chapter-copy h2 { max-width: 690px; }
.chapter-copy > p { max-width: 600px; margin-top: 25px; color: var(--text-muted); font-size: 1.06rem; }
.product-facts { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.product-facts span { padding: 7px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--text-muted); font-family: var(--mono); font-size: .65rem; letter-spacing: .04em; text-transform: uppercase; }
.product-visual {
  position: relative;
  min-height: 500px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-frame);
  background: linear-gradient(145deg, rgb(255 255 255 / 6%), rgb(255 255 255 / 1.5%));
  box-shadow: 0 42px 120px rgb(0 0 0 / 34%);
  overflow: hidden;
}
.product-visual::after { position: absolute; inset: 0; border-radius: inherit; box-shadow: inset 0 1px rgb(255 255 255 / 8%); content: ""; pointer-events: none; }
.visual-caption { position: absolute; right: 18px; bottom: 14px; z-index: 3; color: var(--text-subtle); font-family: var(--mono); font-size: .62rem; letter-spacing: .06em; text-transform: uppercase; }
.liminal-visual { display: grid; place-items: center; padding: clamp(22px, 4vw, 54px); }
.liminal-visual img { width: min(100%, 900px); border-radius: 16px; box-shadow: 0 24px 70px rgb(0 0 0 / 42%); }
.magic-visual { display: grid; min-height: 650px; place-items: center; padding: 46px; }
.magic-visual img { width: min(46%, 300px); border-radius: 30px; box-shadow: 0 26px 80px rgb(0 0 0 / 52%); }
.magic-visual::before { position: absolute; width: 58%; aspect-ratio: 1; border: 1px solid rgb(var(--magic-secondary-rgb) / 30%); border-radius: 50%; background: rgb(var(--magic-primary-rgb) / 7%); content: ""; }
.zero-visual { display: grid; place-items: center; padding: 60px; }
.zero-visual img { width: min(65%, 360px); border-radius: 26%; box-shadow: 0 30px 100px rgb(var(--zero-primary-rgb) / 22%); }
.currency-visual { display: grid; align-content: center; gap: 20px; padding: clamp(32px, 6vw, 72px); }
.currency-line { display: grid; grid-template-columns: 96px 1fr auto; align-items: baseline; gap: 18px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.currency-line span { color: var(--text-subtle); font-family: var(--mono); font-size: .68rem; text-transform: uppercase; }
.currency-line strong { color: var(--text-strong); font-size: clamp(1.25rem, 3vw, 2rem); }
.currency-line small { color: var(--text-muted); }
.currency-note { margin-top: 16px; color: rgb(var(--currency-secondary-rgb)); font-family: var(--mono); font-size: .7rem; letter-spacing: .06em; text-transform: uppercase; }

.principle-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.principle { min-height: 280px; padding: 28px 22px 26px 0; border-bottom: 1px solid var(--line); }
.principle + .principle { padding-left: 22px; border-left: 1px solid var(--line); }
.principle .index { display: block; margin-bottom: 80px; color: var(--accent-cyan); font-family: var(--mono); font-size: .7rem; }
.principle h3 { margin-bottom: 13px; font-size: 1.05rem; letter-spacing: -.025em; }
.principle p { color: var(--text-muted); font-size: .81rem; line-height: 1.55; }
.callout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr); gap: 60px; padding: clamp(38px, 6vw, 74px); border: 1px solid var(--line-strong); border-radius: var(--radius-frame); background: linear-gradient(120deg, rgb(var(--brand-cobalt-rgb) / 16%), rgb(var(--brand-violet-rgb) / 8%), rgb(255 255 255 / 3%)); }
.callout p { max-width: 530px; color: var(--text-muted); }

.page-hero { display: grid; min-height: 690px; grid-template-columns: minmax(0, 1.1fr) minmax(320px, .9fr); align-items: end; gap: 70px; padding-block: 160px 100px; }
.page-hero h1 { font-size: clamp(3.8rem, 8vw, 7.8rem); }
.page-hero h1 span { display: block; background: var(--brand-gradient); background-clip: text; color: transparent; }
.page-hero .lede { margin-bottom: 12px; }
.detail-grid { display: grid; grid-template-columns: minmax(220px, .32fr) minmax(0, 1fr); gap: clamp(50px, 9vw, 140px); }
.detail-aside { position: sticky; top: 118px; align-self: start; color: var(--text-subtle); font-family: var(--mono); font-size: .72rem; line-height: 1.8; }
.detail-aside strong { display: block; margin-bottom: 10px; color: var(--text-strong); }
.detail-content { max-width: 790px; }
.detail-content section { padding-block: 46px; border-top: 1px solid var(--line); }
.detail-content section:first-child { padding-top: 0; border-top: 0; }
.detail-content h2 { margin-bottom: 22px; font-size: clamp(1.9rem, 3vw, 3rem); }
.detail-content h3 { margin: 30px 0 10px; font-size: 1.04rem; letter-spacing: -.02em; }
.detail-content p, .detail-content li { color: var(--text-muted); }
.detail-content ul { display: grid; gap: 10px; padding-left: 1.2rem; }
.notice { padding: 24px; border: 1px solid var(--line-strong); border-left: 3px solid var(--accent-cyan); border-radius: var(--radius-control); background: var(--surface-1); }
.notice strong { display: block; margin-bottom: 8px; color: var(--text-strong); }
.notice p:last-child { margin-bottom: 0; }

.product-list { display: grid; gap: 0; }
.product-row { position: relative; display: grid; grid-template-columns: 74px minmax(220px, .65fr) minmax(300px, 1.15fr) auto; gap: 28px; padding: 42px 0; border-top: 1px solid var(--line); }
.product-row:last-child { border-bottom: 1px solid var(--line); }
.product-row .index { color: var(--text-subtle); font-family: var(--mono); font-size: .72rem; }
.product-row h2 { font-size: 1.7rem; }
.product-row p { margin: 0; color: var(--text-muted); font-size: .91rem; }
.product-row .actions { margin-top: 20px; }
.status { display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; color: var(--text-muted); font-family: var(--mono); font-size: .68rem; text-transform: uppercase; }
.status::before { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-cyan); content: ""; }
.status.preview::before { background: rgb(var(--currency-primary-rgb)); }

.error-page { display: grid; min-height: 100vh; place-items: center; padding: 110px 0 70px; text-align: center; }
.error-code { display: block; margin-bottom: 26px; background: var(--brand-gradient); background-clip: text; color: transparent; font-family: var(--mono); font-size: clamp(5rem, 22vw, 14rem); font-weight: 760; letter-spacing: -.08em; line-height: .75; }
.error-page h1 { font-size: clamp(2.5rem, 6vw, 5rem); }
.error-page .lede { margin: 24px auto 0; }
.error-page .actions { justify-content: center; }

.site-footer { padding-block: 78px 34px; border-top: 1px solid var(--line); }
.footer-main { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: start; gap: 40px; }
.footer-main p { max-width: 430px; margin-top: 17px; color: var(--text-subtle); font-size: .84rem; }
.footer-nav { display: grid; grid-template-columns: repeat(2, minmax(108px, 1fr)); gap: 10px 26px; }
.footer-nav a { color: var(--text-muted); font-size: .82rem; text-decoration: none; }
.footer-nav a:hover { color: var(--accent-cyan); }
.footer-lower { display: flex; justify-content: space-between; gap: 24px; margin-top: 58px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--text-subtle); font-family: var(--mono); font-size: .64rem; letter-spacing: .04em; text-transform: uppercase; }

.enhanced .reveal { opacity: 0; transform: translateY(24px); transition: opacity .65s ease, transform .65s ease; }
.enhanced .reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1040px) {
  .hero { min-height: auto; grid-template-columns: 1fr; padding-top: 160px; }
  .hero-copy { max-width: 850px; }
  .hero-visual { width: min(100%, 680px); justify-self: end; }
  .section-heading, .page-hero, .callout { grid-template-columns: 1fr; align-items: start; }
  .chapter-grid { grid-template-columns: 1fr; }
  .chapter-copy { max-width: 780px; }
  .chapter-grid.is-reversed .chapter-copy { order: 1; }
  .chapter-grid.is-reversed .product-visual { order: 2; }
  .product-visual { min-height: 460px; }
  .product-row { grid-template-columns: 56px minmax(210px, .75fr) minmax(260px, 1.25fr); }
  .product-row .status { grid-column: 2; }
  .principle-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .principle:nth-child(4) { border-left: 0; }
  .principle:nth-child(n+4) { min-height: 220px; }
}

@media (max-width: 760px) {
  :root { --shell: min(100% - 32px, 1320px); }
  .header-inner { min-height: 68px; }
  .menu-button { display: grid; }
  .primary-nav {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 16px;
    left: 16px;
    align-items: stretch;
    flex-direction: column;
    padding: 10px;
    border: 1px solid var(--line-strong);
    border-radius: 14px;
    background: #0b0d14;
    box-shadow: 0 24px 70px rgb(0 0 0 / 48%);
  }
  .primary-nav.is-open { display: flex; }
  .primary-nav a { display: flex; min-height: 48px; align-items: center; }
  .hero { gap: 50px; padding-block: 130px 80px; }
  .hero-visual { min-height: 480px; }
  .index-stack { inset: 7% 2% 4%; transform: none; }
  .product-signal:nth-child(2), .product-signal:nth-child(4) { transform: none; }
  .section { padding-block: 90px; }
  .section-heading { margin-bottom: 44px; }
  .product-index, .principle-grid { grid-template-columns: 1fr; }
  .index-item, .index-item + .index-item, .principle, .principle + .principle { min-height: 0; padding: 25px 0; border-left: 0; }
  .index-item .index, .principle .index { margin-bottom: 34px; }
  .product-chapter { padding-block: 90px; }
  .product-visual { min-height: 390px; }
  .magic-visual { min-height: 580px; padding: 32px; }
  .magic-visual img { width: min(62%, 300px); }
  .zero-visual { padding: 40px; }
  .currency-line { grid-template-columns: 70px 1fr; }
  .currency-line small { grid-column: 2; }
  .page-hero { min-height: 570px; padding-block: 135px 74px; }
  .detail-grid { grid-template-columns: 1fr; }
  .detail-aside { position: static; }
  .product-row { grid-template-columns: 42px 1fr; gap: 16px; }
  .product-row p, .product-row .status { grid-column: 2; }
  .footer-main { grid-template-columns: 1fr; }
  .footer-lower { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 440px) {
  :root { --shell: min(100% - 24px, 1320px); }
  h1 { font-size: clamp(3.1rem, 16.5vw, 4.5rem); }
  .hero { padding-top: 118px; }
  .hero-visual { min-height: 430px; }
  .product-signal { min-height: 78px; grid-template-columns: 38px 1fr auto; padding: 13px; }
  .product-signal small { font-size: .64rem; }
  .actions .button { width: 100%; }
  .product-visual { min-height: 330px; border-radius: 19px; }
  .liminal-visual { padding: 16px; }
  .magic-visual { min-height: 520px; padding: 24px; }
  .magic-visual img { width: min(72%, 270px); border-radius: 24px; }
  .zero-visual { padding: 28px; }
  .zero-visual img { width: min(78%, 300px); }
  .currency-visual { padding: 28px; }
  .currency-line { grid-template-columns: 1fr; gap: 4px; }
  .currency-line small { grid-column: auto; }
  .callout { padding: 30px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .001ms !important; animation-duration: .001ms !important; animation-iteration-count: 1 !important; }
  .enhanced .reveal { opacity: 1; transform: none; }
}

@media (forced-colors: active) {
  .brand-mark { background: CanvasText; }
  .button, .product-signal, .product-visual, .notice, .callout, .menu-button { border: 2px solid CanvasText; }
  .signal-dot, .status::before { background: Highlight !important; }
  .gradient-text, .page-hero h1 span, .error-code { background: none; color: CanvasText; }
}