/* FutonEV website. Palette mirrors the app (design.md section 2): EV-green primary over a
   green-tinted near-neutral surface. One accent, generous whitespace, no chrome. */

:root {
  --green: #146c2e;
  --green-strong: #0e5523;
  --green-container: #a6f4a8;
  --teal: #386569;
  --lime: #4c6700;
  --bg: #f7fbf1;
  --surface: #ffffff;
  --surface-variant: #dee5d8;
  --ink: #1a1c19;
  --ink-soft: #424940;
  --outline: #72796f;
  --radius: 18px;
  --maxw: 1040px;
  --readw: 660px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --green: #8bd88e;
    --green-strong: #a6f4a8;
    --green-container: #005319;
    --teal: #a0cfd3;
    --lime: #b1d26c;
    --bg: #111410;
    --surface: #1a1e18;
    --surface-variant: #2a2f27;
    --ink: #e2e3dd;
    --ink-soft: #c2c8bc;
    --outline: #8c9388;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: "Figtree", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 32px;
}

/* ---- header ---- */
header {
  padding: 32px 0 8px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.01em;
}

.mark {
  width: 28px;
  height: 28px;
  border-radius: 9px;
  background: var(--green);
  display: grid;
  place-items: center;
  color: #fff;
}
@media (prefers-color-scheme: dark) { .mark { color: #04230d; } }

/* ---- hero ---- */
.hero {
  padding: 56px 0 48px;
}

.hero h1 {
  font-size: clamp(32px, 5.5vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
  font-weight: 700;
  max-width: 16ch;
}

.hero p.lead {
  font-size: clamp(18px, 2.4vw, 21px);
  color: var(--ink-soft);
  margin: 0 0 30px;
  max-width: 46ch;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  padding: 13px 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform .08s ease, background .15s ease;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--green);
  color: #fff;
}
@media (prefers-color-scheme: dark) { .btn-primary { color: #04230d; } }
.btn-primary:hover { background: var(--green-strong); }

.btn-ghost {
  background: transparent;
  color: var(--green);
  border-color: var(--outline);
}
.btn-ghost:hover { background: color-mix(in srgb, var(--green) 8%, transparent); }

.note {
  font-size: 14px;
  color: var(--ink-soft);
  margin-top: 16px;
  max-width: 56ch;
}

/* ---- feature grid ---- */
.features {
  list-style: none;
  margin: 0;
  padding: 44px 0 8px;
  border-top: 1px solid var(--surface-variant);
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

@media (min-width: 760px) {
  .features {
    grid-template-columns: repeat(3, 1fr);
    gap: 36px 40px;
  }
}

.features li {
  display: block;
}

.features .dot {
  display: block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--green);
  margin-bottom: 14px;
}

.features h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 600;
}
.features p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 16px;
}

/* ---- prose (privacy) ---- */
main.prose {
  padding: 16px 0 40px;
  max-width: var(--readw);
}
.prose h1 {
  font-size: clamp(28px, 5vw, 38px);
  letter-spacing: -0.02em;
  margin: 24px 0 6px;
}
.prose h2 {
  font-size: 21px;
  margin: 36px 0 8px;
  letter-spacing: -0.01em;
}
.prose p, .prose li { color: var(--ink-soft); }
.prose ul { padding-left: 20px; }
.prose li { margin: 6px 0; }
.prose a { color: var(--green); }
.updated {
  color: var(--outline);
  font-size: 14px;
  margin-top: 2px;
}
.back {
  display: inline-block;
  margin-top: 8px;
  color: var(--green);
  text-decoration: none;
  font-weight: 600;
}
.back:hover { text-decoration: underline; }

/* ---- footer ---- */
footer {
  border-top: 1px solid var(--surface-variant);
  margin-top: 56px;
  padding: 24px 0 48px;
  color: var(--outline);
  font-size: 14px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
footer a { color: var(--ink-soft); text-decoration: none; }
footer a:hover { color: var(--green); }