/* ==========================================================================
   Layout — page structure, header, main grid, footer
   ========================================================================== */

.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 32px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---- Header ---- */
.site-header {
  text-align: center;
  padding: 32px 0 48px;
}

.site-logo {
  font-size: 40px;
  margin-bottom: 12px;
  display: block;
}

.site-title {
  font-size: 32px;
  font-weight: 650;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  margin-bottom: 6px;
}

.site-tagline {
  font-size: 16px;
  color: var(--text-muted);
  font-weight: 400;
  letter-spacing: 0.02em;
}

/* ---- Header controls ---- */
.header-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
}

.header-controls button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-muted);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 550;
  letter-spacing: 0.02em;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.header-controls button:hover {
  background: var(--surface-raised);
  color: var(--text-primary);
}

.header-controls .btn-icon {
  width: 36px;
  padding: 0;
  font-size: 16px;
}

/* ---- Main grid ---- */
.tools-grid {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding-bottom: 48px;
}

@media (min-width: 640px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .tools-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    max-width: 960px;
    margin: 0 auto;
  }
}

/* Last row centering: if a row has fewer items, they stay left-aligned
   but don't stretch. auto-fill with max-width handles this naturally. */
@supports (grid-template-columns: repeat(auto-fill, minmax(300px, 1fr))) {
  .tools-grid {
    justify-content: center;
  }
}

/* ---- Footer ---- */
.site-footer {
  text-align: center;
  padding: 24px 0 8px;
  font-size: 13px;
  color: var(--text-muted);
  opacity: 0.6;
  letter-spacing: 0.03em;
  border-top: 1px solid var(--border-subtle);
}

.site-footer a {
  color: var(--text-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.site-footer a:hover {
  color: var(--text-secondary);
}