*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #f5faf7;
  color: #1a1a18;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Nav ── */
.site-nav {
  padding: 1rem;
  border-bottom: 0.5px solid rgba(0,0,0,0.08);
}

.nav-inner {
  max-width: 800px;
  margin: 0 auto;
}

.nav-logo {
  font-size: 15px;
  font-weight: 600;
  color: #1a1a18;
  text-decoration: none;
  letter-spacing: 0.3px;
}

.nav-logo-accent { color: #3db878; }

/* ── Main ── */
.site-main {
  flex: 1;
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1rem;
}

/* ── Footer ── */
.site-footer {
  padding: 1.5rem 1rem;
  border-top: 0.5px solid rgba(0,0,0,0.08);
}

.footer-inner {
  max-width: 800px;
  margin: 0 auto;
  font-size: 12px;
  color: #888780;
}

/* ── Index page ── */
.page-title {
  font-size: 26px;
  font-weight: 600;
  margin-bottom: 6px;
}

.page-subtitle {
  font-size: 15px;
  color: #5f5e5a;
  margin-bottom: 2rem;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}

.tool-card {
  background: #fff;
  border: 0.5px solid rgba(0,0,0,0.1);
  border-radius: 12px;
  padding: 1.25rem;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.15s, transform 0.15s;
}

.tool-card:hover {
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transform: translateY(-1px);
}

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

.tool-card-title {
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 4px;
  color: #1a1a18;
}

.tool-card-desc {
  font-size: 14px;
  color: #5f5e5a;
  line-height: 1.5;
}

.tool-card-tags {
  display: flex;
  gap: 6px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.tool-tag {
  font-size: 12px;
  background: rgba(239,159,39,0.12);
  color: #b87a10;
  padding: 2px 8px;
  border-radius: 4px;
}

/* ── Dark mode ── */
@media (prefers-color-scheme: dark) {
  body { background: #1a1a18; color: #f1efe8; }
  .site-nav { border-color: rgba(255,255,255,0.08); }
  .nav-logo { color: #f1efe8; }
  .nav-logo-accent { color: #3db878; }
  .page-subtitle { color: #888780; }
  .site-footer { border-color: rgba(255,255,255,0.08); }
  .tool-card { background: #2c2c2a; border-color: rgba(255,255,255,0.1); }
  .tool-card:hover { box-shadow: 0 2px 12px rgba(0,0,0,0.3); }
  .tool-card-title { color: #f1efe8; }
  .tool-card-desc { color: #888780; }
  .tool-tag { background: rgba(239,159,39,0.15); color: #d4952a; }
}