:root {
  --blue: #065A82;
  --teal: #1C7293;
  --mint: #02C39A;
  --mint-dark: #019A7A;
  --ink: #212121;
  --gray: #64748B;
  --light: #F5F5F5;
  --white: #FFFFFF;
  --line: #E2E8F0;
}

* { box-sizing: border-box; }

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

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

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

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

/* Header */
.top { padding: 20px 0; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; font-size: 22px; color: var(--blue); }
.brand b { color: var(--mint); }

/* Hero */
.hero { background: linear-gradient(160deg, var(--blue), var(--teal)); color: var(--white); padding: 72px 0 80px; }
.hero h1 { font-size: clamp(34px, 6vw, 52px); line-height: 1.1; margin: 0 0 16px; max-width: 760px; }
.hero p.lead { font-size: 20px; max-width: 640px; margin: 0 0 32px; opacity: 0.92; }
.badge { display: inline-block; font-size: 14px; font-weight: 600; letter-spacing: 0.02em; background: rgba(2, 195, 154, 0.18); color: #9FF0DC; border: 1px solid rgba(2, 195, 154, 0.5); padding: 4px 12px; border-radius: 999px; margin-bottom: 20px; }

/* Signup */
.signup { background: var(--white); color: var(--ink); border-radius: 14px; padding: 24px; max-width: 520px; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18); }
.signup h2 { margin: 0 0 6px; font-size: 20px; color: var(--blue); }
.signup p { margin: 0 0 14px; font-size: 15px; color: var(--gray); }
.signup .row { display: flex; gap: 8px; flex-wrap: wrap; }
.signup input[type=email] { flex: 1 1 220px; min-width: 0; font: inherit; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px; }
.signup input[type=email]:focus { outline: 2px solid var(--mint); border-color: var(--mint); }
button, .button { font: inherit; font-weight: 600; background: var(--mint); color: var(--white); border: 0; border-radius: 8px; padding: 12px 20px; cursor: pointer; }
button:hover, .button:hover { background: var(--mint-dark); }
.signup .fine { font-size: 13px; margin: 12px 0 0; }
.signup .error { color: #B42318; font-size: 14px; margin: 10px 0 0; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* Sections */
section { padding: 64px 0; }
section h2 { font-size: 28px; color: var(--blue); margin: 0 0 24px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.tile { background: var(--light); border-radius: 12px; padding: 22px; }
.tile h3 { margin: 0 0 8px; font-size: 18px; color: var(--blue); }
.tile p { margin: 0; color: #334155; font-size: 16px; }
.alt { background: var(--light); }
.alt .tile { background: var(--white); }
.platforms { font-size: 18px; color: #334155; }

/* Footer */
footer { border-top: 1px solid var(--line); padding: 28px 0; font-size: 14px; color: var(--gray); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }
footer a { color: var(--gray); }

/* Simple pages: privacy, check-email, 404, and pages the signup API renders */
.doc { max-width: 760px; margin: 0 auto; padding: 24px 20px 64px; }
.doc h1 { color: var(--blue); font-size: 34px; line-height: 1.2; }
.doc h2 { color: var(--blue); font-size: 22px; margin-top: 36px; }
.doc .updated { color: var(--gray); font-size: 15px; }
body.plain { background: var(--light); min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.card { background: var(--white); border-radius: 14px; padding: 32px; max-width: 480px; width: 100%; box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08); }
.card h1 { color: var(--blue); font-size: 26px; margin: 24px 0 8px; }
.card form { margin-top: 20px; }