.site-head {
  padding-block: 1.4rem 0.6rem;
}

.site-head h1 {
  margin: 0;
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.site-head h1 .accent {
  color: var(--accent);
}

.tagline {
  margin: 0.15rem 0 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.tabs {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  gap: 0.3rem;
  padding-block: 0.6rem;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  overflow-x: auto;
  scrollbar-width: none;
}

.tabs::-webkit-scrollbar {
  display: none;
}

.tab {
  border: 0;
  background: transparent;
  color: var(--ink-soft);
  padding: 0.5rem 1.15rem;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  font-weight: 600;
  transition: background 0.15s ease, color 0.15s ease;
}

.tab:hover {
  background: rgba(13, 148, 136, 0.1);
  color: var(--accent-deep);
}

.tab.is-active {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 2px 8px rgba(13, 148, 136, 0.35);
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.1rem;
  margin-bottom: 1.3rem;
}

.panel[hidden] {
  display: none;
}

.site-foot {
  color: var(--ink-soft);
  font-size: 0.82rem;
  padding-block: 0.5rem 2.2rem;
}

.site-foot p {
  margin: 0.3rem 0;
}

.load-state {
  text-align: center;
  padding: 1rem;
  color: var(--accent-deep);
  font-weight: 600;
}

@media (min-width: 48rem) {
  .panel {
    padding: 1.5rem 1.6rem;
  }

  .site-head h1 {
    font-size: 1.6rem;
  }
}