:root {
  --bg: #0b0f16;
  --card: rgba(255, 255, 255, 0.06);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.62);
  --muted2: rgba(255, 255, 255, 0.44);
  --border: rgba(255, 255, 255, 0.10);
  --trend-up: #5fd98a;
  --trend-down: #ff7b72;
  --trend-flat: rgba(255, 255, 255, 0.42);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: ui-sans-serif, system-ui, -apple-system,
    Segoe UI, Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";
  line-height: 1.4;
}

.container {
  max-width: 820px;
  margin: 0 auto;
  padding: 20px 16px 40px;
}

.header h1 {
  margin: 6px 0 6px;
  font-size: 28px;
  letter-spacing: -0.02em;
  text-align: center;
}

.sub {
  margin: 0 0 12px;
  color: var(--muted);
  text-align: center;
}

/* --- Toggle row (view + purity side by side) --- */
.toggle-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin: 0 auto 18px;
}

.view-toggle {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
}

.purity-toggle {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
}

.header {
  text-align: center;
}

.view-btn,
.purity-btn,
.nav-link {
  appearance: none;
  background: transparent;
  border: 0;
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 6px 14px;
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}

.view-btn:hover,
.purity-btn:hover,
.nav-link:hover {
  color: var(--text);
}

.view-btn.is-active,
.purity-btn.is-active,
.nav-link.is-active {
  background: var(--card);
  color: var(--text);
  box-shadow: 0 0 0 1px var(--border) inset;
}

.main-nav {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
  margin-bottom: 12px;
}

.main-nav {\n  display: inline-flex;\n  border: 1px solid var(--border);\n  border-radius: 999px;\n  padding: 3px;\n  gap: 2px;\n  margin-bottom: 12px;\n}

/* --- View toggle: oz / g --- */
body.view-oz .view-g-only,
body.view-g .view-oz-only {
  display: none;
}

/* --- Purity toggle: previous price variants --- */
/* Hide all purity variants by default */
.purity-24k-only,
.purity-18k-only,
.purity-14k-only {
  display: none;
}

/* Show only the active purity variant */
body.purity-24k .purity-24k-only,
body.purity-18k .purity-18k-only,
body.purity-14k .purity-14k-only {
  display: flex;
}

.grid {
  display: grid;
  gap: 14px;
}

@media (min-width: 680px) {
  .grid {
    grid-template-columns: 1fr 1fr;
  }
}

.card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 14px;
  padding: 16px 16px 14px;
}

.card-head {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 0 0 10px;
}

.card-title-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  width: 100%;
}

.card h2 {
  margin: 0;
  font-size: 16px;
  color: var(--muted);
  font-weight: 650;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.card-time {
  color: var(--muted2);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.price-unit-label {
  text-align: center;
  color: var(--muted2);
  font-size: 12px;
  letter-spacing: 0.02em;
  margin: 2px 0 -4px 0;
}

.price-unit-label--sub {
  margin: 10px 0 -2px 0;
}

.price-row {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 10px;
  font-variant-numeric: tabular-nums;
  text-align: center;
}

.price-row--gram {
  margin-top: 0;
}

.price-bid,
.price-ask {
  color: var(--muted2);
  font-size: 14px;
}

.price-eur {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.price-eur-cell {
  display: inline-flex;
  align-items: baseline;
  justify-content: center;
  gap: 5px;
}

.price-trend {
  font-size: 22px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0;
}

.price-trend--up {
  color: var(--trend-up);
}

.price-trend--down {
  color: var(--trend-down);
}

.price-trend--flat {
  color: var(--trend-flat);
}

.price-row--prev {
  margin-top: 4px;
  color: var(--muted2);
}

.price-row--prev .price-eur {
  font-size: 20px;
  font-weight: 750;
  color: var(--muted2);
}

.price-row--prev .price-bid,
.price-row--prev .price-ask {
  font-size: 13px;
}

.footer {
  margin-top: 16px;
  color: var(--muted2);
  font-size: 13px;
  text-align: center;
}

@media (min-width: 1024px) {
  .container {
    max-width: 1200px;
  }
}

.material-section {
  margin-bottom: 32px;
}

.material-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

@media (min-width: 850px) {
  .material-grid {
    grid-template-columns: 380px 1fr;
    align-items: start;
  }
}

.chart-container {
  min-height: 400px;
  width: 100%;
}