:root {
  color-scheme: light;
  --ink: #172019;
  --muted: #69736c;
  --line: #dbe2dc;
  --paper: #f3f6f3;
  --white: #fff;
  --green: #155d3d;
  --arabica: #248657;
  --robusta: #9b6438;
  --red: #bd4339;
  --blue: #3478b7;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Malgun Gothic", "Apple SD Gothic Neo", sans-serif;
}

button { font: inherit; cursor: pointer; }

.site-header,
main,
footer {
  width: min(1160px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  min-height: 118px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.brand,
.eyebrow {
  margin: 0 0 6px;
  color: var(--green);
  font-size: 11px;
  font-weight: 800;
}

h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 7px; font-size: 28px; }
h2 { margin-bottom: 0; font-size: 20px; }
.subtitle, .version { margin: 0; color: var(--muted); font-size: 12px; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 13px;
}

.talk-button {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 0 13px 0 8px;
  border-radius: 6px;
  background: #03c75a;
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  text-decoration: none;
}

.talk-mark {
  width: 23px;
  height: 23px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #fff;
  color: #03c75a;
  font-family: Arial, sans-serif;
  font-size: 13px;
  font-weight: 900;
}

main { padding: 22px 0 38px; }

.controls {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.segmented {
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #f5f7f5;
}

.segmented button {
  min-height: 34px;
  padding: 0 13px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.segmented button.active {
  background: var(--white);
  box-shadow: 0 1px 4px rgba(0, 0, 0, .1);
  color: var(--ink);
}

.refresh-button {
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--green);
  border-radius: 6px;
  background: var(--green);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
}

.refresh-actions {
  display: flex;
  gap: 8px;
  margin-left: auto;
}

.exchange-control {
  display: flex;
  align-items: center;
  gap: 8px;
}

.current-exchange {
  color: var(--green);
  font-size: 11px;
  font-weight: 800;
  white-space: nowrap;
}

.current-exchange.error {
  color: var(--red);
}

.exchange-button {
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--green);
  border-radius: 6px;
  background: #fff;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
}

.exchange-button:disabled {
  cursor: wait;
  opacity: .75;
}

.exchange-button.success {
  border-color: var(--arabica);
  background: #edf8f1;
  color: var(--arabica);
}

.exchange-button.error {
  border-color: var(--red);
  background: #fff4f3;
  color: var(--red);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 13px;
  margin: 17px 0;
}

.summary-grid article {
  min-height: 124px;
  padding: 17px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.arabica-card { border-top: 3px solid var(--arabica) !important; }
.robusta-card { border-top: 3px solid var(--robusta) !important; }

.card-heading {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
}

.coffee-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.coffee-dot.arabica { background: var(--arabica); }
.coffee-dot.robusta { background: var(--robusta); }
.price, .metric { margin: 12px 0 1px; font-size: 24px; font-weight: 800; }
.unit, .label, .metric-note { color: var(--muted); font-size: 11px; }
.krw-price {
  margin: 6px 0 0;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
}
.change { margin: 9px 0 0; font-size: 11px; font-weight: 700; }
.up { color: var(--red); }
.down { color: var(--blue); }

.panel {
  margin-top: 17px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 11px;
}

.panel-heading > span { color: var(--muted); font-size: 11px; }

.chart-wrap {
  position: relative;
  width: 100%;
  min-height: 365px;
  aspect-ratio: 2.25 / 1;
}

canvas { width: 100%; height: 100%; display: block; }

.legend {
  display: flex;
  justify-content: center;
  gap: 24px;
  min-height: 20px;
  color: var(--muted);
  font-size: 11px;
}

.legend span { display: inline-flex; align-items: center; gap: 7px; }
.legend i { width: 18px; border-top: 3px solid; }
.legend .arabica { border-color: var(--arabica); }
.legend .robusta { border-color: var(--robusta); }

.chart-tooltip {
  position: absolute;
  z-index: 5;
  pointer-events: none;
  padding: 8px 10px;
  border-radius: 6px;
  background: rgba(23, 32, 25, .9);
  color: #fff;
  font-size: 11px;
  line-height: 1.6;
  transform: translate(-50%, calc(-100% - 10px));
}

.download-button {
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  font-size: 11px;
  font-weight: 800;
}

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 12px; }
th, td { padding: 12px 10px; border-bottom: 1px solid #e8ece9; text-align: right; white-space: nowrap; }
th { color: var(--muted); font-size: 11px; }
th:first-child, td:first-child { text-align: left; font-weight: 700; }
.status, .notice { margin: 11px 4px 0; color: var(--muted); font-size: 11px; }
.status.error { color: var(--red); }

.conversion-note {
  margin-top: 12px;
  padding: 13px 15px;
  border: 1px solid #d8e4dc;
  border-radius: 7px;
  background: #f8fbf9;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.55;
}

.conversion-note strong {
  display: block;
  margin-bottom: 4px;
  color: var(--ink);
  font-size: 12px;
}

.conversion-note p { margin: 2px 0; }
.conversion-note code { color: var(--green); font-family: inherit; font-weight: 800; }

footer {
  padding: 22px 0 32px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
  text-align: center;
}

footer p { margin-bottom: 5px; }
footer a { color: inherit; }

@media (max-width: 760px) {
  .site-header, main, footer { width: min(100% - 24px, 640px); }
  .site-header { min-height: 112px; align-items: flex-start; padding: 19px 0; }
  h1 { font-size: 21px; }
  .header-actions { flex-direction: column; align-items: flex-end; gap: 7px; }
  .talk-button { min-height: 34px; padding-right: 9px; }
  .talk-button > span:last-child { display: none; }
  .version { font-size: 10px; }
  .controls { display: grid; grid-template-columns: 1fr; }
  .segmented { display: grid; grid-auto-flow: column; }
  .refresh-actions { display: grid; grid-template-columns: 1fr; margin-left: 0; }
  .exchange-control { display: grid; grid-template-columns: 1fr 1fr; }
  .refresh-button, .exchange-button { width: 100%; }
  .current-exchange { padding-left: 4px; white-space: normal; line-height: 1.45; }
  .summary-grid { grid-template-columns: 1fr 1fr; gap: 9px; }
  .summary-grid article { min-height: 112px; padding: 14px; }
  .price, .metric { font-size: 19px; }
  .panel { padding: 15px 11px; }
  .chart-wrap { min-height: 390px; aspect-ratio: 1 / 1.15; }
}