:root {
  --bg: #f5f6f8;
  --bg-panel: #fff;
  --text: #1a1d23;
  --text-muted: #6b7280;
  --border: #e5e7eb;
  --accent: #ff6b4a;
  --link: #3b82f6;
  --max: 760px;
}

html[data-theme="dark"] {
  --bg: #0e1013;
  --bg-panel: #181c22;
  --text: #e8ebef;
  --text-muted: #9aa3ad;
  --border: #2a2f37;
  --link: #60a5fa;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont,
    "Helvetica Neue", "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR",
    "Hiragino Sans", "Microsoft YaHei", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.info-wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px 20px 96px;
}

.info-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 0 28px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}

.info-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.info-header__brand .dot { color: var(--accent); }

.info-header__back {
  font-size: 14px;
  color: var(--text-muted);
  text-decoration: none;
}
.info-header__back:hover { color: var(--text); }

.lang-picker {
  display: inline-flex;
  gap: 4px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px;
  background: var(--bg-panel);
}
.lang-picker__btn {
  border: 0;
  background: transparent;
  font: inherit;
  font-size: 12px;
  color: var(--text-muted);
  padding: 5px 10px;
  border-radius: 999px;
  cursor: pointer;
}
.lang-picker__btn--active {
  background: var(--text);
  color: var(--bg-panel);
}

.info-title {
  font-size: 34px;
  line-height: 1.2;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}

.info-updated {
  color: var(--text-muted);
  font-size: 13px;
  margin: 0 0 24px;
}

.info-intro {
  font-size: 17px;
  color: var(--text-muted);
  margin: 0 0 32px;
}

.info-section {
  margin: 28px 0;
  padding: 0;
}

.info-section h2 {
  font-size: 19px;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.info-section p {
  margin: 0;
  color: var(--text);
}

.info-section + .info-section {
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.info-footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.info-footer a {
  color: var(--text-muted);
  margin-right: 14px;
}

a { color: var(--link); }
a:hover { text-decoration: underline; }

.about-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.about-links a {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-panel);
  text-decoration: none;
  color: var(--text);
}
.about-links a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

@media (max-width: 560px) {
  .info-title { font-size: 26px; }
  .info-header { flex-direction: column; align-items: flex-start; }
}
