:root {
  color-scheme: light;
  --bg: #f3f4f1;
  --paper: #fffdf7;
  --ink: #1d2524;
  --muted: #66706b;
  --line: #d7d8cf;
  --accent: #0f6b5f;
  --accent-weak: #e5f1ee;
  --up: #0c7a42;
  --down: #b22a2a;
  --flat: #5f6663;
  --shadow: 0 10px 24px rgba(32, 38, 35, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

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

.page-shell {
  width: min(1120px, calc(100% - 28px));
  margin: 0 auto;
  padding: 24px 0 40px;
}

.site-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 0 18px;
  border-bottom: 3px solid var(--ink);
}

.kicker {
  margin: 0 0 4px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(28px, 5vw, 48px);
  letter-spacing: 0;
  line-height: 1.08;
}

.updated-box {
  min-width: 180px;
  padding: 12px 14px;
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  text-align: right;
}

.updated-box span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.updated-box strong {
  display: block;
  font-size: 20px;
  line-height: 1.25;
}

.top-nav {
  display: flex;
  gap: 8px;
  margin: 16px 0;
}

.top-nav a {
  min-height: 38px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  font-weight: 800;
}

.top-nav a.active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.status-line {
  margin: 0 0 16px;
  padding: 10px 12px;
  background: var(--accent-weak);
  border-left: 4px solid var(--accent);
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.status-line.error {
  background: #fae9e7;
  border-left-color: var(--down);
  color: var(--down);
}

.control-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 0 0 16px;
  padding: 12px;
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.date-control {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
}

.date-control input,
.chart-date-control input {
  min-height: 34px;
  padding: 5px 8px;
  border: 1px solid var(--line);
  background: #f6f7f3;
  color: var(--ink);
  font: inherit;
  font-size: 13px;
  font-weight: 800;
}

.date-nav {
  display: flex;
  gap: 6px;
}

.date-nav-btn {
  min-height: 34px;
  padding: 5px 12px;
  border: 1px solid var(--line);
  background: #f6f7f3;
  color: var(--ink);
  font: inherit;
  font-size: 13px;
  font-weight: 900;
  cursor: pointer;
}

.date-nav-btn:hover {
  background: var(--accent-weak);
}

.date-nav-btn.today {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.market-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.panel,
.chart-section,
.news-section {
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}

.panel-header h2 {
  margin: 0;
  font-size: 20px;
}

.panel-note {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.panel-header span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.quote-list {
  display: grid;
}

.quote-row {
  display: grid;
  grid-template-columns: minmax(90px, 1fr) minmax(120px, auto) minmax(78px, auto) minmax(78px, auto);
  align-items: center;
  min-height: 58px;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
}

.quote-row:last-child {
  border-bottom: 0;
}

.quote-name {
  font-size: 16px;
  font-weight: 900;
}

.quote-price {
  font-variant-numeric: tabular-nums;
  font-size: 24px;
  font-weight: 900;
  text-align: right;
}

.quote-change {
  min-width: 76px;
  padding: 4px 8px;
  border: 1px solid currentColor;
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  font-weight: 900;
  text-align: right;
}

.quote-change.up {
  color: var(--up);
  background: #e7f3ec;
}

.quote-change.down {
  color: var(--down);
  background: #fae9e7;
}

.quote-change.flat {
  color: var(--flat);
  background: #ecefeb;
}

.quote-row.is-error .quote-price {
  color: var(--muted);
}

.chart-section {
  margin-top: 16px;
}

.chart-toolbar {
  display: grid;
  gap: 10px;
  padding: 12px 16px 0;
}

.chart-range-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chart-range-toggle {
  min-height: 32px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  background: #f6f7f3;
  color: var(--ink);
  font: inherit;
  font-size: 12px;
  font-weight: 900;
  cursor: pointer;
}

.chart-range-toggle.active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.chart-custom-range {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 220px));
  gap: 10px;
  align-items: end;
}

.chart-date-control {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
}

.chart-controls {
  display: flex;
  gap: 6px;
  align-items: center;
}

.chart-toggle {
  min-height: 32px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  background: #f6f7f3;
  color: var(--ink);
  font: inherit;
  font-size: 12px;
  font-weight: 900;
  cursor: pointer;
}

.chart-toggle.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.chart-wrap {
  padding: 10px 12px 14px;
  overflow-x: auto;
}

#trend-chart {
  display: block;
  width: 100%;
  min-width: 560px;
  border: 1px solid var(--line);
  background: var(--paper);
}

.news-section {
  margin-top: 16px;
}

.news-list {
  padding: 14px 16px;
}

.empty-text {
  margin: 0;
  color: var(--muted);
  font-weight: 700;
}

.news-item {
  display: grid;
  grid-template-columns: 92px 78px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.news-source {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.news-category {
  justify-self: start;
  padding: 2px 8px;
  border: 1px solid var(--accent);
  background: var(--accent-weak);
  color: var(--accent);
  font-size: 12px;
  font-weight: 900;
  white-space: nowrap;
}

.news-category:empty {
  border: 0;
  background: transparent;
}

.post-box {
  padding: 14px 16px 16px;
  border-top: 1px solid var(--line);
}

.post-box h3 {
  margin-bottom: 8px;
  font-size: 16px;
}

.post-box pre {
  min-height: 90px;
  margin: 0;
  padding: 12px;
  overflow: auto;
  background: #f6f7f3;
  border: 1px solid var(--line);
  white-space: pre-wrap;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
}

.todo-list {
  margin: 0;
  padding: 16px 16px 16px 34px;
}

.todo-list li {
  margin: 6px 0;
}

@media (max-width: 760px) {
  .page-shell {
    width: min(100% - 18px, 1120px);
    padding-top: 10px;
  }

  .site-header {
    display: block;
  }

  .updated-box {
    margin-top: 14px;
    text-align: left;
  }

  .market-layout {
    grid-template-columns: 1fr;
  }

  .control-panel {
    align-items: stretch;
    flex-direction: column;
  }

  .date-control,
  .date-control input {
    width: 100%;
  }

  .date-control {
    align-items: stretch;
    flex-direction: column;
  }

  .date-nav {
    width: 100%;
  }

  .date-nav-btn {
    flex: 1;
  }

  .panel-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .chart-toolbar {
    padding-inline: 12px;
  }

  .chart-custom-range {
    grid-template-columns: 1fr;
  }

  .chart-controls {
    width: 100%;
  }

  .chart-toggle {
    flex: 1;
  }

  .quote-row {
    grid-template-columns: 1fr auto;
  }

  .quote-change {
    grid-column: auto;
  }

  .quote-change[data-label]::before {
    content: attr(data-label) " ";
    font-size: 10px;
    font-weight: 700;
    opacity: 0.75;
  }

  .quote-change[data-label="前日比"] {
    justify-self: start;
  }

  .news-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}