:root {
  --green: #2a6a3e;
  --green-soft: rgba(42, 106, 62, .1);
  --on-green: #fff;
  --yellow: #f8c91f;
  --yellow-ink: #3a2e00;
  --yellow-soft: #fff3bf;
  --bg: #f7f6f1;
  --card: #fff;
  --ink: #1d1d1a;
  --ink-2: #5c5c55;
  --ink-3: #8b8b82;
  --line: #e6e4da;
  --radius: 20px;
  --shadow: 0 10px 30px rgba(30, 40, 20, .08);
}
@media (prefers-color-scheme: dark) {
  :root {
    --green: #6ccb8c;
    --green-soft: rgba(108, 203, 140, .16);
    --on-green: #062812;
    --yellow: #ffd541;
    --yellow-ink: #2b2200;
    --yellow-soft: rgba(255, 213, 65, .16);
    --bg: #11130f;
    --card: #1b1e18;
    --ink: #f2f2ea;
    --ink-2: #b9b9ae;
    --ink-3: #85857b;
    --line: #2a2e24;
    --shadow: none;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI", Roboto, sans-serif;
}
a { color: var(--green); }
img { max-width: 100%; display: block; }
.wrap { max-width: 1040px; margin: 0 auto; padding-inline: 16px; }
.rounded { font-family: ui-rounded, "SF Pro Rounded", -apple-system, sans-serif; }

/* header */
.top { display: flex; align-items: center; justify-content: space-between; padding-block: 18px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 800; font-size: 22px; }
.brand img { width: 40px; height: 40px; border-radius: 10px; }
.top nav a { color: var(--ink-2); text-decoration: none; margin-left: 18px; font-size: 15px; }
.top nav a:hover { color: var(--green); }

/* hero */
.hero { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; padding-block: 32px 56px; }
.hero h1 { font-size: clamp(36px, 6vw, 58px); line-height: 1.05; margin: 0 0 18px; letter-spacing: -.02em; }
.hero h1 em { font-style: normal; color: var(--green); }
.hero p.lead { font-size: 19px; color: var(--ink-2); margin: 0 0 28px; max-width: 30em; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.badge {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--ink); color: var(--bg); border-radius: 14px; padding: 10px 18px;
  text-decoration: none; font-weight: 600; font-size: 15px;
}
.badge small { display: block; font-size: 11px; font-weight: 500; opacity: .75; line-height: 1.2; }
.badge b { display: block; font-size: 18px; line-height: 1.2; }
.badge[aria-disabled="true"] { opacity: .55; cursor: default; }
.pill { display: inline-block; background: var(--yellow-soft); color: var(--yellow-ink); border-radius: 999px; padding: 4px 12px; font-size: 13px; font-weight: 700; }
@media (prefers-color-scheme: dark) { .pill { color: var(--yellow); } }

.phone {
  justify-self: center; width: min(300px, 80vw); aspect-ratio: 1206 / 2622;
  border-radius: 44px; padding: 10px; background: #111; box-shadow: var(--shadow), 0 0 0 1px rgba(0,0,0,.08);
}
.phone img { width: 100%; height: 100%; object-fit: cover; border-radius: 34px; }

/* sections */
section { padding-block: 48px; }
section h2 { font-size: clamp(26px, 4vw, 36px); margin: 0 0 8px; letter-spacing: -.01em; }
section .sub { color: var(--ink-2); margin: 0 0 28px; }

.birds { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.bird { background: var(--card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--line); }
.bird img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.bird .meta { padding: 12px 14px 14px; }
.bird .name { font-weight: 700; }
.bird .sci { font-style: italic; color: var(--ink-2); font-size: 14px; }
.bird .credit { color: var(--ink-3); font-size: 12px; margin-top: 4px; }
.bird .credit a { color: inherit; }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.feature .icon { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: var(--green-soft); color: var(--green); margin-bottom: 14px; }
.feature .icon svg { width: 24px; height: 24px; }
.feature h3 { margin: 0 0 6px; font-size: 19px; }
.feature p { margin: 0; color: var(--ink-2); font-size: 15px; }

.soon { background: var(--green); color: var(--on-green); border-radius: 28px; padding: 36px; display: flex; gap: 24px; align-items: center; }
.soon h2 { color: inherit; }
.soon p { margin: 0; opacity: .9; }
.soon .wave { flex: none; width: 72px; height: 72px; border-radius: 20px; background: rgba(255,255,255,.15); display: grid; place-items: center; }
.soon .wave svg { width: 40px; height: 40px; }

/* document pages (privacy, support) */
.doc { max-width: 760px; margin: 0 auto; padding-block: 24px 40px; }
.doc h1 { font-size: clamp(30px, 5vw, 42px); margin: 8px 0 4px; }
.doc .updated { color: var(--ink-3); font-size: 14px; margin: 0 0 28px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; margin-bottom: 16px; }
.card h2 { font-size: 19px; margin: 0 0 8px; }
.card p, .card li { color: var(--ink-2); font-size: 16px; }
.card p:last-child, .card ul:last-child { margin-bottom: 0; }
.card ul { padding-left: 20px; }

footer { border-top: 1px solid var(--line); padding-block: 28px 40px; color: var(--ink-3); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; }
footer a { color: var(--ink-2); text-decoration: none; margin-right: 16px; }
footer a:hover { color: var(--green); }

@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; padding-block-start: 8px; }
  .phone { width: min(260px, 70vw); }
  .birds { grid-template-columns: repeat(2, 1fr); }
  .features { grid-template-columns: 1fr; }
  .soon { flex-direction: column; align-items: flex-start; padding: 28px; }
  .top nav a { margin-left: 12px; }
}