/* Bamboo Eater AI — public site (landing + policy pages). */

:root {
  --bg: #ffffff;
  --surface: #f7f8fa;
  --card: #ffffff;
  --text: #14161a;
  --muted: #5c6371;
  --border: #e3e6eb;
  --accent: #15803d;
  --accent-hover: #166534;
  --accent-soft: #eaf5ee;
  --accent-text: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --surface: #151920;
    --card: #171b22;
    --text: #e9ecf1;
    --muted: #98a0af;
    --border: #272c36;
    --accent: #22c55e;
    --accent-hover: #16a34a;
    --accent-soft: #12241a;
    --accent-text: #05230f;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 720px; }

/* ---------- nav ---------- */

.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 18px 0; flex-wrap: wrap;
}
.nav .brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; text-decoration: none; color: var(--text); }
.nav .brand img { width: 28px; height: 28px; border-radius: 7px; }
.nav nav { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
.nav nav a { color: var(--muted); text-decoration: none; font-size: 15px; }
.nav nav a:hover { color: var(--text); }
/* .nav nav a is more specific than .btn-primary — restore button colours. */
.nav nav a.btn { color: var(--text); }
.nav nav a.btn-primary, .nav nav a.btn-primary:hover { color: var(--accent-text); }

/* ---------- buttons ---------- */

.btn {
  display: inline-block;
  padding: 11px 20px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--card);
  color: var(--text);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
}
.btn:hover { background: var(--surface); }
.btn-primary {
  background: var(--accent); border-color: var(--accent); color: var(--accent-text);
}
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-lg { padding: 14px 26px; font-size: 16px; }

/* ---------- hero ---------- */

.hero { padding: 56px 0 44px; text-align: center; }
.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(30px, 5.2vw, 46px);
  line-height: 1.12;
  letter-spacing: -0.022em;
  font-weight: 800;
}
.hero p.sub {
  margin: 0 auto 26px;
  max-width: 600px;
  font-size: 18px;
  color: var(--muted);
}
.hero .ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero .fineprint { margin-top: 14px; font-size: 14px; color: var(--muted); }

.eyebrow {
  display: inline-block;
  margin-bottom: 18px;
  padding: 5px 13px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
}

/* ---------- sections ---------- */

section.band { padding: 52px 0; border-top: 1px solid var(--border); }
section.band.tinted { background: var(--surface); }

h2.sec {
  margin: 0 0 8px;
  font-size: clamp(23px, 3.4vw, 30px);
  letter-spacing: -0.015em;
  text-align: center;
}
p.seclead { margin: 0 auto 34px; max-width: 560px; text-align: center; color: var(--muted); }

.grid { display: grid; gap: 18px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px;
}
.card h3 { margin: 0 0 7px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

.step .num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; margin-bottom: 12px;
  border-radius: 50%;
  background: var(--accent-soft); color: var(--accent);
  font-weight: 700; font-size: 15px;
}

/* ---------- pricing ---------- */

/* Four plans: 4 across, then 2x2, then stacked — never an orphaned 3+1. */
.pricing { display: grid; gap: 18px; grid-template-columns: repeat(4, 1fr); align-items: start; }
@media (max-width: 940px) { .pricing { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .pricing { grid-template-columns: 1fr; } }
.plan {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px 22px;
  display: flex; flex-direction: column; gap: 14px;
}
.plan.popular { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.plan .tag {
  position: absolute; top: -11px; left: 22px;
  padding: 3px 11px; border-radius: 999px;
  background: var(--accent); color: var(--accent-text);
  font-size: 12px; font-weight: 700;
}
.plan h3 { margin: 0; font-size: 17px; }
.plan .price { font-size: 33px; font-weight: 800; letter-spacing: -0.02em; }
.plan .price span { font-size: 15px; font-weight: 500; color: var(--muted); }
.plan .quota { color: var(--muted); font-size: 15px; margin: -6px 0 0; }
.plan ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 7px; font-size: 15px; }
.plan li::before { content: "✓"; color: var(--accent); font-weight: 700; margin-right: 8px; }
.plan .btn { text-align: center; margin-top: auto; }

.toggle {
  display: flex; justify-content: center; gap: 0; margin: 0 auto 30px; width: fit-content;
  border: 1px solid var(--border); border-radius: 999px; padding: 3px; background: var(--card);
}
.toggle button {
  border: none; background: none; cursor: pointer; font: inherit; font-size: 14px; font-weight: 600;
  color: var(--muted); padding: 7px 18px; border-radius: 999px;
}
.toggle button.active { background: var(--accent); color: var(--accent-text); }

/* ---------- actions showcase ---------- */

.chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.chip {
  padding: 9px 16px; border: 1px solid var(--border); border-radius: 999px;
  background: var(--card); font-size: 15px; font-weight: 500;
}

/* ---------- faq ---------- */

.faq { max-width: 720px; margin: 0 auto; }
.faq details {
  border-bottom: 1px solid var(--border);
  padding: 15px 0;
}
.faq summary { cursor: pointer; font-weight: 600; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--muted); font-weight: 400; }
.faq details[open] summary::after { content: "−"; }
.faq p { margin: 10px 0 0; color: var(--muted); }

/* ---------- footer ---------- */

.footer { border-top: 1px solid var(--border); padding: 28px 0 40px; }
.footer .inner { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; align-items: center; }
.footer a { color: var(--muted); text-decoration: none; font-size: 14px; margin-right: 18px; }
.footer a:hover { color: var(--text); }
.footer .copy { color: var(--muted); font-size: 14px; }

/* ---------- policy pages ---------- */
/* Kept as its own block so the legal pages need no markup changes. */

.app { max-width: 820px; margin: 0 auto; padding: 24px 20px 48px; }
.app .card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 22px; margin-bottom: 16px;
}
.app .row { display: flex; align-items: flex-start; gap: 12px; }
.title { font-size: 24px; font-weight: 800; letter-spacing: -0.015em; }
.mutedLine { color: var(--muted); font-size: 14px; margin-top: 6px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }
.linkBtn {
  display: inline-block; padding: 7px 13px;
  border: 1px solid var(--border); border-radius: 8px;
  background: var(--surface); color: var(--text);
  text-decoration: none; font-size: 14px; font-weight: 500;
}
.linkBtn:hover { border-color: var(--accent); color: var(--accent); }
.emailLink { color: var(--accent); }
.prose p, .prose li { font-size: 15.5px; line-height: 1.7; }
.prose h2 { margin: 26px 0 8px; font-size: 18px; }
.prose ul { padding-left: 20px; }
.prose code {
  background: var(--surface); border: 1px solid var(--border);
  padding: 1px 6px; border-radius: 6px; font-size: 0.9em;
}