:root {
  --ink: #333232;
  --muted: #6b6a6a;
  --accent: #308cd1;
  --accent-dark: #2273b0;
  --bg: #ffffff;
  --soft: #f4f7fa;
  --line: #e3e6ea;
  --ok: #1f7a4d;
  --radius: 10px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.55;
}

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

.wrap { max-width: 640px; margin: 0 auto; padding: 0 16px; }

header.site {
  border-bottom: 1px solid var(--line);
  padding: 10px 0;
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; }
header.site img { height: 36px; width: auto; display: block; }
header.site a.store { font-size: 15px; text-decoration: none; }

h1 { font-size: 30px; line-height: 1.2; margin: 28px 0 10px; }
h2 { font-size: 22px; line-height: 1.25; margin: 0 0 8px; }
p.lead { font-size: 19px; color: var(--muted); margin: 0 0 20px; }

ol.techniques { padding-left: 22px; margin: 0 0 24px; }
ol.techniques li { margin: 2px 0; }

form.signup {
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 16px;
  margin: 0 0 24px;
}
form.signup label.field { display: block; font-weight: bold; font-size: 15px; margin: 0 0 4px; }
form.signup input[type=text],
form.signup input[type=email] {
  width: 100%;
  font-size: 17px;
  padding: 12px;
  border: 1px solid #c9ced4;
  border-radius: 8px;
  margin: 0 0 14px;
  background: #fff;
  color: var(--ink);
}
form.signup .consent { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; margin: 2px 0 14px; }
form.signup .consent input { width: 22px; height: 22px; margin: 1px 0 0; flex: none; }
form.signup .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.cf-turnstile { margin: 0 0 14px; min-height: 65px; }

button, .btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: 0;
  border-radius: 8px;
  font-size: 18px;
  font-weight: bold;
  padding: 14px 20px;
  text-decoration: none;
  cursor: pointer;
  text-align: center;
}
button { width: 100%; }
button:hover, .btn:hover { background: var(--accent-dark); }
button[disabled] { opacity: .6; cursor: wait; }

.error { color: #b3261e; font-size: 15px; margin: 0 0 12px; display: none; }
.error.show { display: block; }

.small { font-size: 14px; color: var(--muted); }

.banner {
  background: #eaf4fc;
  border: 1px solid #cfe5f6;
  border-radius: var(--radius);
  padding: 14px 16px;
  margin: 20px 0;
}
.banner.welcome { background: #e9f6ef; border-color: #c8e9d6; color: var(--ok); font-weight: bold; }
.banner strong.code { font-size: 20px; letter-spacing: 1px; }

.video { margin: 0 0 34px; }
.video .frame { position: relative; padding-top: 56.25%; background: #000; border-radius: var(--radius); overflow: hidden; margin: 8px 0 10px; }
.video .frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video .tip { background: var(--soft); border-left: 4px solid var(--accent); padding: 10px 12px; border-radius: 0 8px 8px 0; margin: 0 0 10px; }
.video .tip b { display: block; font-size: 14px; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); margin-bottom: 2px; }
.video .refill { font-size: 15px; }

footer.site { border-top: 1px solid var(--line); margin-top: 32px; padding: 18px 0 28px; }
footer.site p { margin: 4px 0; }