:root {
  --sp-ok: #166534;
  --sp-deny: #991b1b;
  --sp-panel: #faf9f7;
  --sp-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --sp-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

.page-shelf {
  background: var(--color-bg);
}

.page-shelf .page-hero {
  padding-top: var(--space-7);
  padding-bottom: var(--space-5);
}

.sp-lede {
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  max-width: 62ch;
  margin: 0;
}

.sp-prose {
  max-width: 68ch;
}

.sp-prose p {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-3);
}

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

.sp-prose strong {
  color: var(--color-text);
  font-weight: 600;
}

.sp-compare {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

@media (min-width: 800px) {
  .sp-compare {
    grid-template-columns: 1fr 1fr;
  }
}

.sp-compare-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: var(--space-4);
  box-shadow: 0 1px 3px var(--shadow-soft);
}

.sp-compare-card h3 {
  margin: 0 0 8px;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.sp-compare-card p {
  margin: 0;
  color: var(--color-text-secondary);
  line-height: 1.6;
  font-size: 0.9375rem;
}

.sp-compare-card ul {
  margin: var(--space-2) 0 0;
  padding-left: 1.15rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
  font-size: 0.9375rem;
}

.sp-compare-card li + li {
  margin-top: 6px;
}

.sp-price {
  display: inline-block;
  margin-top: var(--space-2);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-accent);
}

.sp-live-board {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: var(--space-4);
  box-shadow: 0 1px 3px var(--shadow-soft);
}

.sp-live-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.sp-live-head h2 {
  margin: 0;
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: -0.015em;
}

.sp-live-head p {
  margin: 6px 0 0;
  color: var(--color-text-secondary);
  line-height: 1.55;
  max-width: 48ch;
  font-size: 0.9375rem;
}

.sp-trend-grid {
  display: grid;
  gap: 12px;
}

@media (min-width: 700px) {
  .sp-trend-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.sp-metric {
  padding: 16px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: var(--sp-panel);
}

.sp-metric span {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.sp-metric strong {
  display: block;
  margin-top: 8px;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  font-weight: 700;
}

.sp-takeaway {
  margin: var(--space-3) 0 0;
  color: var(--color-text-secondary);
  line-height: 1.6;
  font-size: 0.9375rem;
  max-width: 70ch;
}

.sp-checks {
  display: grid;
  gap: var(--space-3);
}

@media (min-width: 900px) {
  .sp-checks {
    grid-template-columns: 1fr 1fr;
  }

  .sp-checks .sp-check-wide {
    grid-column: 1 / -1;
  }
}

.sp-check {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: var(--space-4);
  box-shadow: 0 1px 3px var(--shadow-soft);
}

.sp-check h2 {
  margin: 0 0 8px;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.sp-check > p {
  margin: 0 0 var(--space-3);
  color: var(--color-text-secondary);
  line-height: 1.6;
  font-size: 0.9375rem;
}

.sp-form {
  display: grid;
  gap: var(--space-2);
}

.sp-form label {
  font-size: 0.875rem;
  font-weight: 500;
}

.sp-form input[type="number"],
.sp-form select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1.5px solid var(--color-border);
  background: #fff;
  font: inherit;
}

.sp-form input:focus,
.sp-form select:focus,
.sp-pill:focus-within,
#refresh-trends:focus-visible {
  outline: 2px solid rgba(31, 75, 122, 0.4);
  outline-offset: 2px;
}

.sp-age-slider-wrap {
  display: grid;
  gap: 8px;
}

.sp-age-display {
  font-weight: 600;
  color: var(--color-accent);
}

.sp-pill-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sp-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: var(--sp-panel);
  font-size: 0.8125rem;
  cursor: pointer;
}

.sp-pill input {
  margin: 0;
}

.sp-loading {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: var(--space-3);
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

.sp-loading-wheel {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-accent);
  animation: sp-spin 0.7s linear infinite;
}

@keyframes sp-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .sp-loading-wheel,
  .sp-result.is-reveal {
    animation: none !important;
  }
}

.sp-result {
  margin-top: var(--space-3);
  padding: var(--space-3);
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: var(--sp-panel);
  opacity: 0;
  transform: translateY(4px);
}

.sp-result.is-reveal {
  animation: sp-in 0.3s var(--sp-ease) forwards;
}

@keyframes sp-in {
  to {
    opacity: 1;
    transform: none;
  }
}

.sp-result.is-ok {
  border-color: rgba(22, 101, 52, 0.28);
  background: rgba(22, 101, 52, 0.05);
}

.sp-result.is-deny {
  border-color: rgba(153, 27, 27, 0.28);
  background: rgba(153, 27, 27, 0.05);
}

.sp-result h3 {
  margin: 0 0 6px;
  font-size: 1.0625rem;
}

.sp-result p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.55;
}

.sp-proof {
  margin-top: 10px;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.sp-table-wrap {
  overflow-x: auto;
  margin-top: var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: 12px;
}

.sp-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  min-width: 420px;
}

.sp-table th,
.sp-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
}

.sp-table th {
  background: #fff;
  font-weight: 600;
}

.sp-table tr:last-child td {
  border-bottom: none;
}

.sp-yes {
  color: var(--sp-ok);
  font-weight: 600;
}

.sp-no {
  color: var(--sp-deny);
  font-weight: 600;
}

.sp-schedule {
  margin-top: var(--space-3);
}

.sp-list {
  list-style: none;
  margin: var(--space-3) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.sp-list-item {
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: #fff;
}

.sp-list-item h3 {
  margin: 0 0 4px;
  font-size: 1rem;
  font-weight: 600;
}

.sp-list-item p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.sp-meta {
  margin-top: var(--space-2);
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.sp-note {
  margin-top: var(--space-4);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
  max-width: 68ch;
}

.sp-sources {
  margin-top: var(--space-3);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
}

.sp-sources a {
  color: var(--color-accent);
}