:root {
  --bg: #f3efe5;
  --panel: #fffaf0;
  --panel-muted: #efe5d2;
  --text: #1d2a30;
  --accent: #1f8ded;
  --accent-dark: #176cb6;
  --border: rgba(29, 42, 48, 0.12);
  --shadow: 0 20px 60px rgba(29, 42, 48, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(31, 141, 237, 0.18), transparent 28%),
    linear-gradient(135deg, #f8f1e2, #f3efe5 40%, #e7efe9 100%);
  min-height: 100vh;
}

.shell {
  width: min(960px, calc(100% - 32px));
  margin: 0 auto;
  padding: 64px 0 72px;
}

.hero {
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12px;
  color: var(--accent-dark);
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  max-width: 720px;
  font-size: clamp(32px, 5vw, 54px);
  line-height: 1;
  margin-bottom: 16px;
}

.lead {
  max-width: 700px;
  font-size: 18px;
  line-height: 1.6;
}

.card {
  background: rgba(255, 250, 240, 0.86);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
}

.muted {
  background: rgba(239, 229, 210, 0.72);
}

.success {
  border-color: rgba(31, 141, 237, 0.35);
}

.widget {
  min-height: 56px;
  display: flex;
  align-items: center;
}

.notice {
  padding: 16px 18px;
  border-radius: 16px;
  background: rgba(29, 42, 48, 0.06);
  border: 1px solid var(--border);
}

.notice p {
  margin: 8px 0 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
}

.secondary {
  color: white;
  background: var(--accent);
}

code {
  font-family: Consolas, monospace;
  background: rgba(29, 42, 48, 0.08);
  padding: 2px 6px;
  border-radius: 6px;
}

ol {
  margin-bottom: 0;
  padding-left: 20px;
}

li + li {
  margin-top: 10px;
}

@media (max-width: 640px) {
  .shell {
    padding-top: 36px;
  }

  .card {
    padding: 18px;
    border-radius: 18px;
  }
}