/* ============================================================
   Seattle Pizza Index — design system
   ============================================================ */

:root {
  --bg: #E8E4DC;
  --accent: #E85D00;
  --accent-dark: #c44e00;
  --text: #2B2723;
  --text-soft: #5a534b;
  --card: #f3f0ea;
  --border: #d8d2c6;
  --shadow: 0 2px 12px rgba(43, 39, 35, 0.07);
  --radius: 14px;
  --maxw: 1120px;

  --font-heading: "Sansita", Georgia, serif;
  --font-body: "Nunito Sans", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-heading);
  line-height: 1.15;
  margin: 0 0 0.5em;
}

a { color: var(--accent); }
a:hover { color: var(--accent-dark); }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Nav ---------- */
.site-nav {
  border-bottom: 1px solid var(--border);
  background: rgba(232, 228, 220, 0.85);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
  flex-wrap: wrap;
}
.brand {
  font-family: var(--font-heading);
  font-size: 1.32rem;
  font-weight: 800;
  color: var(--accent);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  letter-spacing: -0.01em;
}
.brand:hover { color: var(--accent); }
.brand .pizza { font-size: 1.4em; line-height: 1; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.97rem;
  transition: background 0.15s, color 0.15s;
}
.nav-links a:hover { background: rgba(232, 93, 0, 0.1); color: var(--accent); }
.nav-links a[aria-current="page"] { color: var(--accent); }

/* ---------- Layout helpers ---------- */
main { padding: 48px 0 72px; }

.page-header {
  text-align: center;
  max-width: 760px;
  margin: 12px auto 40px;
}
.page-header h1 {
  color: var(--accent);
  font-size: clamp(2rem, 5vw, 3rem);
}
.page-header p.lede {
  color: var(--text-soft);
  font-size: 1.1rem;
  margin: 0;
}

/* ---------- Metric cards ---------- */
.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin: 0 0 40px;
}
.metric-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 24px;
  text-align: center;
}
.metric-card .label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-soft);
  margin: 0 0 8px;
}
.metric-card .value {
  font-family: var(--font-heading);
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}
.metric-card .sub {
  font-size: 0.85rem;
  color: var(--text-soft);
  margin-top: 6px;
}
.metric-card .label .label-sub {
  display: block;
  font-weight: 400;
  font-size: 0.75rem;
  letter-spacing: 0;
  text-transform: none;
  opacity: 0.7;
  margin-top: 1px;
}
/* Row 1 — headline index cards: bigger numbers, subtle orange tint */
.metric-card--index {
  background: linear-gradient(180deg, #f7ece2 0%, #f3e6d9 100%);
  border-color: #e7d2bd;
}
.metric-card--index .label {
  color: var(--accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.8rem;
}
.metric-card--index .value {
  font-size: 3.4rem;
  font-weight: 800;
}

/* ---------- Filter controls ---------- */
.controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px 32px;
  margin: 0 0 16px;
  padding: 18px 22px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.control-group { display: flex; flex-direction: column; align-items: center; gap: 7px; }
.control-group > .control-label {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: 800;
  color: var(--text-soft);
}
.segmented {
  display: inline-flex;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
}
.segmented button {
  border: 0;
  background: transparent;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--text-soft);
  padding: 7px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.segmented button:hover { color: var(--text); }
.segmented button[aria-pressed="true"] {
  background: var(--accent);
  color: #fff;
}

/* ---------- Restaurant filter ---------- */
.restaurant-filter {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: 0 0 24px;
  padding: 0 22px;
}
.restaurant-filter > summary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 0;
  cursor: pointer;
  list-style: none;
  text-align: center;
}
.restaurant-filter > summary::-webkit-details-marker { display: none; }
.restaurant-filter > summary::after {
  content: "▾";
  color: var(--text-soft);
  transition: transform 0.2s;
}
.restaurant-filter[open] > summary::after { transform: rotate(180deg); }
.rf-summary { color: var(--text-soft); font-size: 0.92rem; }
.rf-body { padding: 4px 0 20px; }
.rf-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 14px;
}
.rf-actions button {
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-soft);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 6px 14px;
  border-radius: 999px;
  cursor: pointer;
}
.rf-actions button:hover { color: var(--text); border-color: var(--accent); }
.rf-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}
.rf-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: 999px;
  padding: 5px 12px 5px 10px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-soft);
  cursor: pointer;
  user-select: none;
}
.rf-chip .sw {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  flex: 0 0 auto;
}
.rf-chip[aria-pressed="true"] {
  color: var(--text);
  border-color: var(--accent);
  background: #fff;
}
.rf-chip[aria-pressed="false"] { opacity: 0.55; }

/* ---------- Chart ---------- */
.chart-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
}
.chart-wrap {
  position: relative;
  height: 460px;
}
.chart-note {
  text-align: center;
  color: var(--text-soft);
  font-size: 0.88rem;
  margin: 18px 0 0;
}

/* ---------- Custom legend ---------- */
.chart-legend-wrap { margin-top: 18px; }
.legend-key {
  text-align: center;
  color: var(--text-soft);
  font-size: 0.82rem;
  margin: 0 0 10px;
}
.legend-key .lk-cheese { color: var(--text); font-weight: 800; letter-spacing: -1px; }
.legend-key .lk-pep { color: var(--text); font-weight: 800; letter-spacing: 1px; }
.chart-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 7px 14px;
}
.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.84rem;
  color: var(--text-soft);
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 6px;
}
.legend-item:hover { background: rgba(43, 39, 35, 0.05); color: var(--text); }
.legend-item .sw {
  width: 14px;
  height: 4px;
  border-radius: 2px;
  flex: 0 0 auto;
}
.legend-item.is-spi {
  font-weight: 800;
  color: var(--text);
  width: 100%;
  justify-content: center;
  margin-bottom: 2px;
}
.legend-item.is-spi .sw { width: 22px; height: 5px; }
.legend-item.is-off { opacity: 0.4; }

.chart-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  height: 460px;
  color: var(--text-soft);
}
.chart-placeholder .inner { max-width: 420px; }
.chart-placeholder .emoji { font-size: 2.6rem; display: block; margin-bottom: 10px; }
.is-hidden { display: none !important; }

/* ---------- Pull quote ---------- */
.pullquote {
  background: var(--bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin: 64px 0 0;
  padding: 64px 0;
}
.pullquote blockquote {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
  text-align: center;
}
.pullquote p {
  font-family: var(--font-heading);
  color: var(--accent);
  font-size: clamp(1.5rem, 3.6vw, 2.4rem);
  font-weight: 800;
  line-height: 1.25;
  margin: 0 0 18px;
}
.pullquote cite {
  font-style: normal;
  font-weight: 700;
  color: var(--text-soft);
  font-size: 1rem;
}

/* ---------- Prose (methodology / about) ---------- */
.prose { max-width: 760px; margin: 0 auto; }
.prose h2 {
  color: var(--accent);
  font-size: 1.45rem;
  margin-top: 1.8em;
}
.prose p { margin: 0 0 1.2em; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  margin-top: 24px;
}
.site-footer p {
  text-align: center;
  color: var(--text-soft);
  font-size: 0.88rem;
  margin: 0 0 4px;
}
.site-footer p:last-child { margin: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .controls { gap: 18px 22px; }
}
@media (max-width: 560px) {
  .metric-grid { grid-template-columns: 1fr; }
  .metric-card--index .value { font-size: 2.8rem; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .site-nav .container { min-height: 0; padding-top: 12px; padding-bottom: 12px; }
  .brand { font-size: 1.12rem; }
  .nav-links { gap: 2px; }
  .nav-links a { padding: 7px 10px; font-size: 0.9rem; }
  main { padding: 32px 0 56px; }
  .chart-wrap, .chart-placeholder { height: 340px; }
  .segmented button { padding: 7px 12px; font-size: 0.86rem; }
}