/* Oh My Pi Desktop — static site. No build step, no dependencies. */

:root {
  --bg:        #0a0d12;
  --bg-soft:   #0f141b;
  --card:      #121821;
  --line:      #1f2937;
  --line-soft: #172032;
  --ink:       #e8edf5;
  --ink-dim:   #94a3b8;
  --ink-faint: #64748b;
  --green:     #4ade80;
  --blue:      #60a5fa;
  --radius:    14px;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Inter, Roboto, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── ambient glow ─────────────────────────────────────── */
.glow {
  position: fixed;
  inset: -30% 0 auto 0;
  height: 780px;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(46% 42% at 26% 32%, rgba(74, 222, 128, .16), transparent 70%),
    radial-gradient(46% 42% at 74% 24%, rgba(96, 165, 250, .16), transparent 70%);
  filter: blur(24px);
}

main, .nav, footer { position: relative; z-index: 1; }

code { font-family: var(--mono); font-size: .9em; }

/* ── nav ──────────────────────────────────────────────── */
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px;
  max-width: 1080px; margin: 0 auto; padding: 20px 24px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  color: var(--ink); text-decoration: none; font-weight: 650; letter-spacing: -.01em;
}
.brand img { border-radius: 7px; }
.nav nav { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.nav nav a {
  color: var(--ink-dim); text-decoration: none;
  padding: 7px 12px; border-radius: 9px; font-size: .93rem;
  transition: color .16s, background .16s;
}
.nav nav a:hover { color: var(--ink); background: rgba(255,255,255,.05); }
.nav nav a.ghost {
  border: 1px solid var(--line); color: var(--ink);
}
.nav nav a.ghost:hover { border-color: var(--blue); }

/* ── layout ───────────────────────────────────────────── */
section {
  max-width: 1080px;
  margin: 0 auto;
  padding: 72px 24px;
}
section h2 {
  font-size: clamp(1.6rem, 3.4vw, 2.1rem);
  letter-spacing: -.025em;
  margin: 0 0 10px;
}
.section-lede { color: var(--ink-dim); max-width: 66ch; margin: 0 0 26px; }

/* ── hero ─────────────────────────────────────────────── */
.hero { text-align: center; padding-top: 46px; padding-bottom: 40px; }
.hero-icon {
  border-radius: 22px;
  box-shadow: 0 18px 50px rgba(0,0,0,.55);
  margin-bottom: 22px;
}
.eyebrow {
  font-family: var(--mono); font-size: .78rem; letter-spacing: .09em;
  text-transform: uppercase; color: var(--ink-faint); margin: 0 0 14px;
}
.hero h1 {
  font-size: clamp(2.1rem, 6vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -.038em;
  margin: 0 auto 20px;
  max-width: 18ch;
  font-weight: 700;
}
.grad {
  background: linear-gradient(100deg, var(--green), var(--blue));
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.lede {
  color: var(--ink-dim);
  max-width: 62ch; margin: 0 auto 30px;
  font-size: 1.06rem;
}
.lede code, .fineprint code, .note code, .step code, .section-lede code, .band code {
  background: rgba(255,255,255,.07);
  border: 1px solid var(--line-soft);
  padding: 1px 6px; border-radius: 6px;
  color: var(--ink);
}

.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 11px;
  border: 1px solid var(--line);
  color: var(--ink); text-decoration: none;
  font-weight: 560; font-size: .96rem;
  transition: transform .16s, border-color .16s, background .16s, box-shadow .16s;
}
.btn:hover { transform: translateY(-2px); border-color: var(--ink-faint); background: rgba(255,255,255,.04); }
.btn.primary {
  background: linear-gradient(100deg, var(--green), var(--blue));
  color: #04131f; border-color: transparent; font-weight: 680;
}
.btn.primary:hover { box-shadow: 0 12px 32px rgba(96,165,250,.3); }
.fineprint { color: var(--ink-faint); font-size: .87rem; margin: 20px 0 0; }

/* ── screenshot ───────────────────────────────────────── */
.shot { padding-top: 8px; padding-bottom: 8px; }
.shot-frame {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-soft);
  box-shadow: 0 30px 80px rgba(0,0,0,.6);
}
.shot-frame img { display: block; width: 100%; height: auto; }

/* ── band ─────────────────────────────────────────────── */
.band { max-width: none; padding: 0; margin: 60px 0; }
.band-inner {
  max-width: 1080px; margin: 0 auto;
  padding: 26px 30px;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}
.band-inner p { margin: 0; color: var(--ink-dim); max-width: 78ch; }
.band-inner strong { color: var(--ink); }

/* ── feature grid ─────────────────────────────────────── */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 16px;
  margin-top: 26px;
}
.grid article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  transition: border-color .18s, transform .18s;
}
.grid article:hover { border-color: #2b3a52; transform: translateY(-3px); }
.grid h3 {
  margin: 0 0 8px; font-size: 1.02rem; letter-spacing: -.012em;
  display: flex; align-items: center; gap: 9px;
}
.ico { font-size: 1.1rem; line-height: 1; }
.grid p { margin: 0; color: var(--ink-dim); font-size: .93rem; }

/* ── code / diagram ───────────────────────────────────── */
pre {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  overflow-x: auto;
  margin: 0;
}
pre code { color: var(--ink); font-size: .87rem; line-height: 1.55; white-space: pre; }
pre code .c { color: var(--ink-faint); }
.diagram { font-size: .8rem; }
.diagram code { color: var(--blue); }

.note {
  margin-top: 22px;
  padding: 16px 20px;
  border-left: 3px solid var(--green);
  background: rgba(74,222,128,.06);
  border-radius: 0 10px 10px 0;
  color: var(--ink-dim);
  font-size: .94rem;
}
.note strong { color: var(--ink); }

/* ── steps ────────────────────────────────────────────── */
.steps { display: grid; gap: 18px; margin-top: 26px; }
.step {
  display: grid; grid-template-columns: 40px 1fr; gap: 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}
.num {
  display: grid; place-items: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(100deg, var(--green), var(--blue));
  color: #04131f; font-weight: 750; font-size: 1rem;
}
.step h3 { margin: 6px 0 6px; font-size: 1.04rem; letter-spacing: -.012em; }
.step p { margin: 0 0 12px; color: var(--ink-dim); font-size: .94rem; }
.step p:last-child { margin-bottom: 0; }
.step .sub { font-size: .87rem; color: var(--ink-faint); margin-top: 12px; margin-bottom: 0; }

/* ── footer ───────────────────────────────────────────── */
footer { border-top: 1px solid var(--line-soft); margin-top: 40px; }
.foot-inner {
  max-width: 1080px; margin: 0 auto; padding: 30px 24px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 18px; flex-wrap: wrap;
}
.foot-inner > div { display: flex; align-items: center; gap: 10px; }
.foot-inner img { border-radius: 6px; }
.foot-inner nav { display: flex; gap: 20px; flex-wrap: wrap; }
.foot-inner a { color: var(--ink-dim); text-decoration: none; font-size: .9rem; }
.foot-inner a:hover { color: var(--ink); }

/* ── responsive ───────────────────────────────────────── */
@media (max-width: 720px) {
  section { padding: 52px 20px; }
  .nav { padding: 16px 20px; }
  .nav nav a { padding: 6px 9px; font-size: .88rem; }
  .step { grid-template-columns: 1fr; gap: 12px; }
  .diagram { font-size: .62rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn:hover, .grid article:hover { transform: none; }
}