/* Age Calculator — page-specific layout (nav from shared theme) */

.skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  padding: 8px 16px;
  background: var(--blue-500);
  color: var(--navy-900);
  font-weight: 600;
  z-index: 100;
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  left: 8px;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(12px);
}

.header-inner {
  max-width: 920px;
  margin: 0 auto;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.logo {
  margin: 0;
  font-size: clamp(1.15rem, 2.5vw, 1.4rem);
  font-weight: 700;
  color: var(--text-primary);
}

.lang-toggle {
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--navy-800);
  color: var(--blue-300);
  cursor: pointer;
  transition: var(--transition-base);
}

.lang-toggle:hover {
  border-color: var(--blue-500);
  color: var(--text-primary);
}

.ad-slot--top {
  max-width: 920px;
  margin: 0 auto;
  padding: 12px 16px 8px;
  text-align: center;
}

.ad-placeholder {
  display: none;
}

.main {
  max-width: 920px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

.lead {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  line-height: 1.65;
}

.form-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.25rem 1.5rem;
  margin-bottom: 1.25rem;
}

.form-card h2 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
}

.form-row label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.form-row input[type="date"],
.form-row input[type="time"] {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--navy-800);
  color: var(--text-primary);
  min-width: 160px;
}

.hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 8px;
  line-height: 1.5;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 1rem;
}

.btn {
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition-base);
}

.btn--primary {
  background: linear-gradient(135deg, var(--blue-600), var(--blue-500));
  color: var(--white);
}

.btn--primary:hover {
  filter: brightness(1.08);
}

.btn--ghost {
  background: transparent;
  color: var(--blue-300);
  border: 1px solid var(--border);
}

.btn--ghost:hover {
  border-color: var(--blue-500);
  color: var(--text-primary);
}

.error-msg {
  color: var(--danger);
  font-size: 0.875rem;
  margin-top: 10px;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
  margin-top: 1rem;
}

.stat-tile {
  background: var(--navy-800);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 12px;
  text-align: center;
}

.stat-tile .val {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--blue-400);
  line-height: 1.2;
}

.stat-tile .lab {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.info-block {
  margin-top: 1rem;
  padding: 12px 14px;
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.info-block strong {
  color: var(--blue-300);
}

.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 640px) {
  .compare-grid {
    grid-template-columns: 1fr;
  }
}

.faq-section {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.faq-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  background: var(--navy-800);
  overflow: hidden;
}

.faq-q {
  padding: 12px 14px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  color: var(--text-secondary);
}

.faq-q::-webkit-details-marker {
  display: none;
}

.faq-a {
  padding: 0 14px 14px;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.25rem 16px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  padding: 10px 18px;
  background: var(--navy-700);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.875rem;
  z-index: 200;
  box-shadow: var(--shadow-lg);
}

.toast[hidden] {
  display: none;
}