@import url("tokens.css");

/* ---------------------------------------------------------------- */
/* Base                                                              */
/* ---------------------------------------------------------------- */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
  font-size: 16px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

a { color: var(--color-line-strong); text-decoration: none; }
a:hover { color: var(--color-line); text-decoration: underline; }

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.eyebrow {
  font-family: var(--font-label);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  color: var(--color-muted);
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 400;
  color: var(--color-ink);
  margin: 0 0 0.5em;
}

h1 { font-size: 3rem; line-height: 1.08; letter-spacing: -0.01em; }
h2 { font-size: 2rem; line-height: 1.15; }
h3 { font-family: var(--font-heading-alt); font-size: 1.25rem; }
h4 { font-family: var(--font-heading-alt); font-size: 1.05rem; }

p { margin: 0 0 1em; color: var(--color-ink); }
.muted { color: var(--color-muted); }

code, .mono { font-family: var(--font-mono); font-size: 0.88em; }

/* ---------------------------------------------------------------- */
/* Header                                                            */
/* ---------------------------------------------------------------- */
header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 20;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 0;
}

.wordmark {
  font-family: var(--font-heading-alt);
  font-size: 1.05rem;
  color: var(--color-ink);
  letter-spacing: -0.01em;
}
.wordmark strong { font-family: var(--font-heading); }
.wordmark:hover { color: var(--color-ink); text-decoration: none; }

nav ul {
  list-style: none;
  display: flex;
  gap: 1.75rem;
  margin: 0;
  padding: 0;
  font-size: 0.92rem;
}

nav a { color: var(--color-muted); }
nav a:hover { color: var(--color-line-strong); }

.nav-cta {
  border: 1px solid var(--color-ink);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-sm);
  color: var(--color-ink) !important;
}
.nav-cta:hover { background: var(--color-ink); color: var(--color-bg) !important; text-decoration: none; }

.mobile-toggle { display: none; }

@media (max-width: 720px) {
  nav ul { display: none; }
  .mobile-toggle { display: block; }
}

/* ---------------------------------------------------------------- */
/* Hero                                                              */
/* ---------------------------------------------------------------- */
.hero {
  padding: var(--space-xl) 0 var(--space-lg);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 3rem;
  align-items: center;
}

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
}

.hero h1 { margin-top: 0.6rem; }
.hero .lede { font-size: 1.1rem; max-width: 46ch; color: var(--color-muted); }

.hero-actions { display: flex; gap: 0.9rem; margin-top: 1.6rem; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1.3rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading-alt);
  font-size: 0.92rem;
}
.btn-primary { background: var(--color-ink); color: var(--color-bg) !important; }
.btn-primary:hover { background: var(--color-line-strong); text-decoration: none; }
.btn-ghost { border: 1px solid var(--color-border); color: var(--color-ink) !important; }
.btn-ghost:hover { border-color: var(--color-ink); text-decoration: none; }

.hero-diagram { width: 100%; height: auto; }

/* ---------------------------------------------------------------- */
/* Sections                                                          */
/* ---------------------------------------------------------------- */
section { padding: var(--space-xl) 0; }
section + section { border-top: 1px solid var(--color-border); }

.section-head { max-width: 60ch; margin-bottom: var(--space-lg); }
.section-head h2 { margin-bottom: 0.4rem; }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}
@media (max-width: 800px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
}

.card {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.4rem;
}

.card .tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-line-strong);
  background: var(--color-bg-alt);
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  margin-bottom: 0.6rem;
}

.card p { color: var(--color-muted); font-size: 0.94rem; margin-bottom: 0; }
.card h4 { margin-bottom: 0.35rem; }

/* Problem section — three format gaps */
.gap-list { display: flex; flex-direction: column; gap: 1.1rem; }
.gap-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1.5rem;
  padding: 1rem 0;
  border-top: 1px solid var(--color-border);
}
.gap-row:first-child { border-top: none; }
.gap-row .fmt { font-family: var(--font-mono); color: var(--color-line-strong); font-size: 0.95rem; }
.gap-row p { margin: 0; color: var(--color-muted); }

/* Principles */
.principle {
  border-left: 2px solid var(--color-line-soft);
  padding-left: 1rem;
}
.principle h4 { color: var(--color-ink); }
.principle p { font-size: 0.92rem; }

/* Code block */
.code-block {
  background: var(--color-code-bg);
  color: var(--color-code-text);
  border-radius: var(--radius-md);
  padding: 1.4rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.55;
}
.code-block .k { color: var(--color-code-accent); }
.code-block .s { color: #c9b78c; }

/* Status / roadmap */
.status-row {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 1.6rem;
}
.status-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--color-line);
  flex: none;
}
.roadmap { border-left: 1px solid var(--color-border); margin-left: 4px; padding-left: 1.5rem; }
.roadmap-item { position: relative; padding-bottom: 1.5rem; }
.roadmap-item:last-child { padding-bottom: 0; }
.roadmap-item::before {
  content: "";
  position: absolute;
  left: -1.59rem;
  top: 0.35rem;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-line-soft);
}
.roadmap-item.now::before { background: var(--color-line); border-color: var(--color-line); }
.roadmap-item h4 { margin-bottom: 0.2rem; }
.roadmap-item p { font-size: 0.9rem; margin-bottom: 0; }

/* Governance list */
.gov-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem 1.5rem; }
.gov-list li { padding-left: 1.2rem; position: relative; font-size: 0.94rem; color: var(--color-muted); }
.gov-list li::before { content: "—"; position: absolute; left: 0; color: var(--color-line-soft); }
@media (max-width: 700px) { .gov-list { grid-template-columns: 1fr; } }

/* CTA band */
.cta-band {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.cta-band h3 { margin-bottom: 0.3rem; }
.cta-band p { color: var(--color-muted); margin-bottom: 0; max-width: 48ch; }

/* ---------------------------------------------------------------- */
/* Footer                                                            */
/* ---------------------------------------------------------------- */
footer {
  border-top: 1px solid var(--color-border);
  padding: 2.5rem 0 3rem;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  flex-wrap: wrap;
}
.footer-inner nav ul { flex-direction: column; gap: 0.5rem; font-size: 0.88rem; }
footer .fine { font-size: 0.82rem; color: var(--color-muted); max-width: 42ch; }