:root {
  --bg: #fafaf8;
  --surface: #ffffff;
  --text: #1c1c1c;
  --muted: #6b6b6b;
  --accent: #3a7bd5;
  --border: #e4e2dd;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

header {
  border-bottom: 1px solid var(--border);
  padding: 18px 24px;
}

header .brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 18px;
  text-decoration: none;
  color: var(--text);
}

header .brand img {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  display: block;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

h1 {
  font-size: 30px;
  margin: 0 0 8px;
}

h2 {
  font-size: 20px;
  margin: 36px 0 12px;
}

h3 {
  font-size: 16px;
  margin: 20px 0 8px;
}

p { margin: 0 0 14px; color: var(--text); }
.lead { color: var(--muted); font-size: 17px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
}

.pricing {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin: 16px 0;
}

@media (max-width: 420px) {
  .pricing {
    grid-template-columns: 1fr;
  }
}

.pkg {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
  text-align: center;
}

.pkg .title { font-weight: 700; margin-bottom: 6px; }
.pkg .credits { color: var(--muted); font-size: 13px; margin-bottom: 10px; }
.pkg .price { font-size: 22px; font-weight: 700; color: var(--accent); }
.pkg .per-credit { color: var(--muted); font-size: 12px; margin-top: 4px; }

.pkg button {
  margin-top: 14px;
  width: 100%;
  padding: 10px;
  border: none;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
}

.pkg button:disabled {
  background: #bbb;
  cursor: default;
}

.status {
  margin: 16px 0;
  font-size: 14px;
}

.status.error { color: #c0392b; }
.status.ok { color: #2a8a52; }

.showcase {
  margin: 24px 0;
  text-align: center;
}

.showcase img {
  max-width: 100%;
  width: 380px;
  border-radius: 14px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.12);
  display: block;
  margin: 0 auto;
}

.showcase figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}

ol, ul { padding-left: 22px; }
li { margin-bottom: 6px; }

footer {
  border-top: 1px solid var(--border);
  padding: 24px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

footer a { color: var(--muted); }

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

.legal-block {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
}

.hidden {
  display: none;
}