:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --card: #ffffff;
  --text: #132025;
  --muted: #4b5c65;
  --brand: #0f766e;
  --brand-strong: #0a5b54;
  --border: #d7dde1;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(circle at top right, #eaf8f6 0, var(--bg) 40%);
  color: var(--text);
}

.wrap {
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(620px, 100%);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 10px 35px rgba(19, 32, 37, 0.08);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--brand);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 12px;
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(28px, 4vw, 38px);
  line-height: 1.12;
}

p {
  margin: 0 0 12px;
  line-height: 1.45;
}

.muted {
  color: var(--muted);
}

.notice {
  margin: 12px 0 16px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #f8fbfc;
  color: var(--muted);
  font-size: 14px;
}

.steps {
  margin: 14px 0 20px 20px;
  padding: 0;
}

.steps li {
  margin: 0 0 8px;
  line-height: 1.4;
}

.actions {
  display: grid;
  gap: 10px;
}

.btn {
  display: inline-block;
  border: 1px solid var(--brand);
  border-radius: 12px;
  padding: 11px 14px;
  text-decoration: none;
  background: var(--brand);
  color: #fff;
  font-weight: 600;
  text-align: center;
}

.btn:hover {
  background: var(--brand-strong);
  border-color: var(--brand-strong);
}

.btn-secondary {
  background: #fff;
  color: var(--brand);
}

.btn-secondary:hover {
  background: #f1fbf9;
}

.details {
  margin-top: 18px;
  color: var(--muted);
}

.details summary {
  cursor: pointer;
  font-weight: 600;
}

.details ul {
  margin: 10px 0 0 20px;
  padding: 0;
}

.details li {
  margin-bottom: 6px;
}