/* Forage — landing page
   Visual language: Spatial Deck (dark #060810, Space Grotesk, purple/teal/amber).
   Matches sibling ibrews repos (holodeck-pocket, harvardxr-keynote). */

:root {
  --bg:      #060810;
  --bg-soft: #0b0f1d;
  --card:    rgba(255, 255, 255, 0.035);
  --card-line: rgba(255, 255, 255, 0.09);
  --ink:     #eef1f8;
  --muted:   #99a1ba;
  --faint:   #6b7390;

  --teal:    #5eead4;
  --green:   #6ee7a8;
  --blue:    #a5d8ff;
  --purple:  #9b8cff;
  --amber:   #ffd479;

  --title-grad: linear-gradient(130deg, #fff 18%, #a5d8ff 55%, #9b8cff 92%);
  --max: 1080px;

  --r: 16px;
  --shadow: 0 24px 60px -20px rgba(0, 0, 0, 0.7);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Space Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* twinkling-stars canvas + radial gradients behind everything */
#stars {
  position: fixed;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
}
.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(60% 55% at 18% 42%, rgba(155, 140, 255, 0.20), transparent 70%),
    radial-gradient(55% 50% at 85% 8%,  rgba(94, 234, 212, 0.16), transparent 65%),
    radial-gradient(70% 60% at 60% 110%, rgba(110, 231, 168, 0.08), transparent 60%);
}

a { color: var(--blue); text-decoration: none; }
a:hover { color: #fff; }

.wrap { width: min(var(--max), 92vw); margin-inline: auto; }

/* ---------- nav ---------- */
header.nav {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0 6px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.2px;
  font-size: 19px;
}
.brand .mark {
  font-size: 22px;
  filter: drop-shadow(0 0 10px rgba(110, 231, 168, 0.55));
}
.nav-links { display: flex; gap: 22px; align-items: center; }
.nav-links a { color: var(--muted); font-size: 15px; }
.nav-links a:hover { color: #fff; }
@media (max-width: 640px) { .nav-links { display: none; } }

/* ---------- hero ---------- */
.hero {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 54px;
  align-items: center;
  padding: 64px 0 30px;
}
@media (max-width: 880px) {
  .hero { grid-template-columns: 1fr; gap: 36px; padding-top: 40px; }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 2.4px;
  text-transform: uppercase;
  color: var(--teal);
  border: 1px solid rgba(94, 234, 212, 0.3);
  background: rgba(94, 234, 212, 0.06);
  padding: 7px 13px;
  border-radius: 100px;
}
.eyebrow .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
}

h1.title {
  font-size: clamp(56px, 9vw, 104px);
  line-height: 0.95;
  margin: 20px 0 0;
  font-weight: 700;
  letter-spacing: -2px;
  background: var(--title-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.tagline {
  font-size: clamp(19px, 2.4vw, 23px);
  font-weight: 600;
  margin: 14px 0 0;
  color: #fff;
}
.tagline em { color: var(--teal); font-style: normal; }
.subpitch {
  font-size: clamp(15.5px, 1.7vw, 17.5px);
  color: var(--muted);
  margin: 16px 0 0;
  max-width: 46ch;
}
.meta-line {
  margin-top: 16px;
  font-size: 13.5px;
  color: var(--faint);
  letter-spacing: 0.3px;
}
.meta-line strong { color: var(--muted); font-weight: 600; }

/* ---------- buttons ---------- */
.cta-row { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font: inherit;
  font-weight: 600;
  font-size: 16px;
  padding: 14px 24px;
  border-radius: 12px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.12s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(120deg, var(--green), var(--teal));
  color: #04130d;
  box-shadow: 0 12px 30px -10px rgba(94, 234, 212, 0.6);
}
.btn-primary:hover { box-shadow: 0 16px 40px -10px rgba(94, 234, 212, 0.8); color: #04130d; }
.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--card-line);
  color: var(--ink);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.09); color: #fff; }

/* ---------- terminal mock ---------- */
.terminal {
  background: linear-gradient(180deg, #0c1120, #080b15);
  border: 1px solid var(--card-line);
  border-radius: var(--r);
  box-shadow: var(--shadow);
  overflow: hidden;
  font-family: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 13.5px;
}
.term-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 11px 14px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--card-line);
}
.term-bar .b { width: 11px; height: 11px; border-radius: 50%; }
.term-bar .b.r { background: #ff5f57; }
.term-bar .b.y { background: #febc2e; }
.term-bar .b.g { background: #28c840; }
.term-bar .name { margin-left: 8px; color: var(--faint); font-size: 12px; }
.term-body { padding: 16px 18px 20px; line-height: 1.7; white-space: pre-wrap; }
.term-body .prompt { color: var(--teal); }
.term-body .cmd { color: #fff; }
.term-body .out { color: var(--muted); }
.term-body .hi { color: var(--blue); }
.term-body .ok { color: var(--green); }
.term-body .dim { color: var(--faint); }
.term-body .amber { color: var(--amber); }

/* ---------- section frame ---------- */
section { position: relative; z-index: 1; }
.section-head { text-align: center; max-width: 40ch; margin: 0 auto 40px; }
.section-head h2 {
  font-size: clamp(28px, 4vw, 38px);
  letter-spacing: -0.6px;
  margin: 0 0 10px;
}
.section-head p { color: var(--muted); margin: 0; font-size: 16px; }
.kicker {
  font-size: 12.5px; font-weight: 600; letter-spacing: 2.4px;
  text-transform: uppercase; color: var(--purple);
}

/* ---------- features ---------- */
.features { padding: 80px 0 30px; }
.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
@media (max-width: 720px) { .grid { grid-template-columns: 1fr; } }
.card {
  background: var(--card);
  border: 1px solid var(--card-line);
  border-radius: var(--r);
  padding: 26px 24px;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.card:hover {
  transform: translateY(-3px);
  border-color: rgba(94, 234, 212, 0.35);
  background: rgba(255, 255, 255, 0.05);
}
.card .ico {
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: 12px;
  font-size: 23px;
  margin-bottom: 16px;
  background: rgba(94, 234, 212, 0.1);
  border: 1px solid rgba(94, 234, 212, 0.22);
}
.card.amber .ico { background: rgba(255, 212, 121, 0.1); border-color: rgba(255, 212, 121, 0.25); }
.card.purple .ico { background: rgba(155, 140, 255, 0.12); border-color: rgba(155, 140, 255, 0.28); }
.card h3 { margin: 0 0 8px; font-size: 19px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card code {
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 0.9em;
  color: var(--teal);
  background: rgba(94, 234, 212, 0.08);
  padding: 1px 6px;
  border-radius: 5px;
}
.tag-pill {
  display: inline-block;
  font-size: 11px; font-weight: 700; letter-spacing: 1.4px; text-transform: uppercase;
  color: var(--amber);
  background: rgba(255, 212, 121, 0.1);
  border: 1px solid rgba(255, 212, 121, 0.3);
  padding: 3px 9px; border-radius: 100px;
  margin-left: 8px; vertical-align: middle;
}

/* ---------- CTA / signup ---------- */
.cta { padding: 90px 0 70px; }
.cta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
@media (max-width: 720px) { .cta-grid { grid-template-columns: 1fr; } }
.signup-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
  border: 1px solid var(--card-line);
  border-radius: 20px;
  padding: 32px 30px;
}
.signup-card.feature { border-color: rgba(94, 234, 212, 0.4); box-shadow: 0 20px 50px -24px rgba(94,234,212,0.5); }
.signup-card h3 { margin: 0 0 6px; font-size: 23px; }
.signup-card .sub { color: var(--muted); font-size: 15px; margin: 0 0 20px; }
.signup {
  display: flex; gap: 10px; flex-wrap: wrap;
}
.signup input[type="email"] {
  flex: 1 1 200px;
  min-width: 0;
  font: inherit;
  font-size: 15px;
  padding: 13px 15px;
  border-radius: 11px;
  border: 1px solid var(--card-line);
  background: rgba(0, 0, 0, 0.35);
  color: var(--ink);
}
.signup input[type="email"]::placeholder { color: var(--faint); }
.signup input[type="email"]:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(94, 234, 212, 0.15);
}
.signup .btn { flex: 0 0 auto; }
.form-note {
  font-size: 13px;
  color: var(--faint);
  margin: 14px 0 0;
  min-height: 1.2em;
}
.form-note a { color: var(--muted); text-decoration: underline; }
.form-note.ok { color: var(--green); }

/* personal note */
.personal {
  max-width: 60ch; margin: 0 auto 46px; text-align: center;
  color: var(--muted); font-size: 16.5px;
}
.personal .sig { color: var(--ink); font-weight: 600; }

/* ---------- footer ---------- */
footer {
  position: relative; z-index: 1;
  border-top: 1px solid var(--card-line);
  padding: 30px 0 50px;
  margin-top: 30px;
}
.foot-row {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 14px;
  color: var(--faint); font-size: 14px;
}
.foot-links { display: flex; gap: 20px; flex-wrap: wrap; }
.foot-links a { color: var(--muted); }
.foot-links a:hover { color: #fff; }

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  #stars { display: none; }
  * { transition: none !important; }
}