:root {
  --primary: #244b3a;
  --background: #f5f6f8;
  --card: #ffffff;
  --line: #e1e5e8;
  --muted: #68707a;
  --text: #20242a;
}

* {
  box-sizing: border-box;
}

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

header {
  background: var(--primary);
  color: #ffffff;
  padding: 18px;
}

header > div {
  max-width: 720px;
  margin: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  font-size: 24px;
}

.brand b {
  font-size: 15px;
}

.brand small {
  display: block;
  opacity: 0.8;
  margin-top: 3px;
}

main {
  max-width: 720px;
  margin: auto;
  padding: 22px 14px 40px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px;
  box-shadow: 0 8px 30px #0001;
}

h1 {
  font-size: 23px;
  margin: 0 0 8px;
}

p {
  line-height: 1.55;
}

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

.step {
  font-size: 12px;
  margin-bottom: 12px;
}

button {
  width: 100%;
  border: 0;
  border-radius: 13px;
  padding: 15px;
  margin: 7px 0;
  background: #eef2f0;
  font-size: 16px;
  text-align: left;
  cursor: pointer;
}

button.primary {
  background: var(--primary);
  color: #ffffff;
  text-align: center;
  font-weight: 700;
}

button.secondary {
  background: #ffffff;
  border: 1px solid var(--line);
  text-align: center;
}

label {
  display: block;
  font-size: 14px;
  font-weight: 650;
  margin: 14px 0 6px;
}

input,
textarea,
select {
  width: 100%;
  padding: 13px;
  border: 1px solid #cfd5da;
  border-radius: 11px;
  font-size: 16px;
  background: #ffffff;
}

textarea {
  min-height: 110px;
}

.review {
  background: #fafafa;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 13px;
  margin: 9px 0;
}

.review b {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
}

.protocol {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: 2px;
  text-align: center;
  background: #f0f5f2;
  padding: 16px;
  border-radius: 12px;
}

.notice {
  background: #f0f5f2;
  border-left: 4px solid var(--primary);
  padding: 13px;
  border-radius: 8px;
}

footer {
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  padding: 15px;
}

@media (max-width: 520px) {
  .card {
    padding: 18px;
  }
}