:root {
  --primary: #ff6b00;
  --bg: #f4f4f4;
  --surface: #ffffff;
  --text: #2b2b2b;
  --muted: #6b6b6b;
  --border: #e0e0e0;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  font-size: 17px;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

header.bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

header.bar .dot {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--primary);
}

header.bar .name {
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.2px;
}

header.bar nav {
  margin-left: auto;
  display: flex;
  gap: 18px;
}

header.bar nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}

header.bar nav a:hover { color: var(--primary); }

article {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 32px;
}

h1 {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin: 0 0 6px;
}

.updated {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 24px;
}

h2 {
  font-size: 20px;
  font-weight: 700;
  margin: 32px 0 10px;
  letter-spacing: -0.2px;
}

h3 { font-size: 17px; font-weight: 700; margin: 20px 0 6px; }

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

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

ul { padding-left: 22px; }

li { margin: 6px 0; }

.note {
  background: #fff4ec;
  border: 1px solid #ffd9bf;
  border-radius: 12px;
  padding: 14px 16px;
  font-size: 15px;
  color: #8a4b1f;
  margin: 0 0 28px;
}

hr { border: none; border-top: 1px solid var(--border); margin: 28px 0; }

footer {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  margin-top: 32px;
}

.home-links { display: flex; flex-direction: column; gap: 14px; margin-top: 28px; }

.home-links a {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 22px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  font-size: 18px;
}

.home-links a span { display: block; color: var(--muted); font-weight: 400; font-size: 14px; margin-top: 4px; }

.home-links a:hover { border-color: var(--primary); }