:root {
  --bg: #ffffff;
  --ink: #0a0a0a;
  --ink-soft: #555555;
  --ink-muted: #999999;
  --surface: #f4f4f5;
  --mint: #00d2a0;
  --purple: #6c5ce7;
  --border: rgba(10, 10, 10, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
}

a {
  color: var(--purple);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--ink);
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.brand-dot {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: var(--mint);
}

h1 {
  margin: 0 0 8px;
  font-size: 2rem;
  line-height: 1.15;
}

.meta {
  margin: 0 0 28px;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.card-grid {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.card {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  color: var(--ink);
  text-decoration: none;
}

.card:hover {
  text-decoration: none;
  border-color: rgba(108, 92, 231, 0.35);
}

.card strong {
  display: block;
  margin-bottom: 4px;
  font-size: 1rem;
}

.card span {
  color: var(--ink-soft);
  font-size: 0.92rem;
}

h2 {
  margin: 28px 0 10px;
  font-size: 1.15rem;
}

p,
li {
  color: var(--ink-soft);
}

ul,
ol {
  padding-left: 1.25rem;
}

footer {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--ink-muted);
  font-size: 0.9rem;
}

footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  margin-bottom: 12px;
}

.steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
}

.steps li {
  counter-increment: step;
  margin: 0 0 14px;
  padding: 14px 16px 14px 52px;
  position: relative;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 14px;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  background: var(--mint);
  color: var(--ink);
  font-weight: 700;
  font-size: 0.85rem;
  display: grid;
  place-items: center;
}

.notice {
  margin: 20px 0;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(0, 210, 160, 0.35);
  background: #e8fff8;
  color: var(--ink-soft);
}