/* ── Pagina layout ── */
.about-page {
  min-height: 100vh;
  background: var(--bg-body);
}

.about-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 52px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 8px;
  box-shadow: var(--shadow-sm);
}

.about-nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  margin-right: 8px;
}

.about-nav-logo {
  width: 28px;
  height: 28px;
  border-radius: 7px;
}

.about-nav-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
}

.about-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 16px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.about-section-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.about-section-subtitle {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin: 20px 0 10px 0;
}

.about-section-subtitle:first-child {
  margin-top: 0;
}

.about-hero {
  text-align: center;
  padding: 16px 0;
}

.about-hero-logo {
  width: 80px;
  height: 80px;
  border-radius: 20px;
  box-shadow: var(--shadow-md);
  margin-bottom: 16px;
}

.about-hero-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.about-hero-subtitle {
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 8px;
}

.about-hero-tagline {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}

.about-hero-version {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.about-prose {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 0 0 12px 0;
}

.about-prose:last-child {
  margin-bottom: 0;
}

.how-it-works-grid {
  display: grid;
  grid-template-columns: repeat(
    auto-fit, minmax(200px, 1fr)
  );
  gap: 14px;
}

.how-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
}

.how-card-icon {
  font-size: 28px;
  margin-bottom: 10px;
}

.how-card-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.how-card-body {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.developer-card {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.developer-info {
  flex: 1;
}

.developer-name {
  font-size: 17px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.developer-role {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 4px;
}

.developer-location {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.developer-links {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 12px;
}

.developer-links a {
  color: var(--accent);
  text-decoration: none;
}

.developer-links a:hover {
  text-decoration: underline;
}

.developer-links span {
  color: var(--text-muted);
}

.developer-bio {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-top: 14px;
}

.license-block {
  background: var(--surface-2);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm)
                 var(--radius-sm) 0;
  padding: 16px 20px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.9;
  white-space: pre-line;
}

.references-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.references-list li {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
  padding-left: 14px;
  border-left: 2px solid var(--border);
}

.references-list a {
  color: var(--accent);
  text-decoration: none;
}

.references-list a:hover {
  text-decoration: underline;
}