/* ---- tokens ---------------------------------------------------------- */
:root {
  --ink:        #131a17;
  --ink-soft:   #4a5551;
  --ink-faint:  #6a746f;
  --line:       #d8e0dc;
  --bg:         #ffffff;
  --bg-alt:     #f4f7f5;
  --accent:     #0f7a52;
  --accent-hov: #0c6243;
  --accent-ink: #ffffff;
  --panel:      #e8f0eb;
  --wash:       rgba(255,255,255,0.92);

  --wrap: 1080px;
  --pad: 24px;
  --radius: 3px;

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
          Arial, "Noto Sans", sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
          "Liberation Mono", monospace;
}

/* ---- base ------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--mono);
  line-height: 1.2; letter-spacing: -0.01em; font-weight: 600;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(1.6rem, 3.6vw, 2.4rem); line-height: 1.3; }
h2 { font-size: clamp(1.15rem, 2.2vw, 1.5rem); }
h3 { font-size: 1rem; }
p  { margin: 0 0 1em; }

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

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--pad); }

.skip {
  position: absolute; left: -9999px;
  background: var(--accent); color: var(--accent-ink);
  padding: 10px 16px; border-radius: 0 0 var(--radius) 0;
}
.skip:focus { left: 0; top: 0; }

::selection { background: var(--accent); color: var(--accent-ink); }

/* ---- header ---------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: var(--wash);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; min-height: 68px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand-name { font-weight: 650; font-size: 1.05rem; letter-spacing: -0.01em; }
.brand-name::after { content: ":~$"; color: var(--ink-faint); margin-left: 8px; font-weight: 400; }
.brand-y { color: var(--accent); }

.nav { display: flex; align-items: center; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav a { color: var(--ink-soft); font-size: 0.95rem; }
.nav a::before { content: "/"; color: var(--ink-faint); margin-right: 2px; }
.nav a:hover { color: var(--ink); text-decoration: none; }
.nav-cta {
  color: var(--accent) !important;
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 7px 16px;
}

/* ---- hero ------------------------------------------------------------ */
.hero {
  padding: clamp(64px, 11vw, 128px) 0 clamp(56px, 9vw, 96px);
  background: var(--bg-alt);
  border-bottom: 1px solid var(--line);
}
.hero h1 { max-width: 800px; }
.eyebrow {
  font-family: var(--mono);
  letter-spacing: 0.04em;
  font-size: 0.78rem; font-weight: 600; color: var(--accent);
  margin-bottom: 1.4em;
}
.eyebrow::before { content: "# "; color: var(--ink-faint); }
.lede { font-size: 1.15rem; color: var(--ink-soft); max-width: 62ch; }

.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.btn {
  display: inline-block; padding: 12px 24px;
  border-radius: var(--radius);
  font-family: var(--mono); font-weight: 600; font-size: 0.98rem;
  border: 1px solid transparent; transition: background .15s, border-color .15s;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: var(--accent-hov); }
.btn-ghost { border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--accent); }
.btn-primary::before, .btn-ghost::before { content: "› "; opacity: .6; }

/* ---- sections -------------------------------------------------------- */
.section { padding: clamp(56px, 8vw, 96px) 0; border-top: 1px solid var(--line); }
.section-alt { background: var(--bg-alt); }
.section-title { margin-bottom: 0.35em; }
.section-title::before {
  content: "$ "; display: inline;
  color: var(--accent); font-weight: 400;
}
.section-lede { color: var(--ink-soft); max-width: 60ch; margin-bottom: 2.5rem; }

.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

/* ---- card ------------------------------------------------------------ */
.card {
  display: flex; flex-direction: column;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0;
  overflow: hidden;
}
.card h3 {
  margin: 0; padding: 12px 20px;
  background: var(--panel); border-bottom: 1px solid var(--line);
  color: var(--accent); font-size: 0.88rem; font-weight: 600;
}
.card h3::before { content: "▸ "; color: var(--ink-faint); }
.card p { padding: 18px 20px 0; color: var(--ink-soft); }
.card .ticks { margin-top: auto; padding: 0 20px 20px; }

.ticks { list-style: none; margin: 0; padding: 0; }
.ticks li {
  position: relative; padding-left: 20px; margin-bottom: 8px;
  font-size: 0.88rem; color: var(--ink-soft);
}
.ticks li::before {
  content: "-"; position: absolute; left: 2px; top: 0;
  color: var(--accent);
}

/* ---- steps ----------------------------------------------------------- */
.steps {
  position: relative;
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: 32px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  counter-reset: step;
}
.steps::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0;
  height: 2px; background: var(--line);
}
.steps li {
  position: relative;
  border-top: 2px solid var(--accent);
  padding-top: 20px;
}
.step-num {
  display: block; font-family: var(--mono); font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: lowercase;
  color: var(--accent); margin-bottom: 10px;
}
.steps p { color: var(--ink-soft); margin: 0; }

/* ---- about ----------------------------------------------------------- */
.about-grid {
  display: grid; gap: 48px;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  align-items: start;
}
.about-grid p { color: var(--ink-soft); }
.facts { margin: 0; border-top: 1px solid var(--line); }
.facts > div { padding: 16px 0; border-bottom: 1px solid var(--line); }
.facts dt {
  font-family: var(--mono);
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--accent); font-weight: 600;
}
.facts dd { margin: 4px 0 0; font-weight: 500; }

@media (max-width: 760px) {
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .nav { gap: 18px; }
  .nav li:not(:last-child) { display: none; }
}

/* ---- contact --------------------------------------------------------- */
.contact { background: var(--bg-alt); border-top: 1px solid var(--line); }
.contact-mail {
  font-size: clamp(1.3rem, 3.5vw, 1.9rem);
  font-weight: 650; letter-spacing: -0.02em; margin: 0;
}
.contact-mail::before { content: "→ "; color: var(--ink-faint); }
.contact-mail a { color: var(--accent); }
.contact-note { color: var(--ink-faint); font-size: 0.92rem; margin-top: 1.25rem; }

/* ---- footer ---------------------------------------------------------- */
.site-footer { border-top: 1px solid var(--line); padding: 28px 0; font-size: 0.8rem; }
.footer-inner {
  display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between;
  font-size: 0.9rem; color: var(--ink-faint);
}
.footer-inner p { margin: 0; }

/* ---- reduced motion --------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}