/* ===========================================================================
   kline.css — TradingView-style K線 hero chart
   Rendered by docs/javascripts/kline-chart.js at the top of report pages.
   Uses the site's --fp-* design tokens so it tracks light/dark automatically.
   =========================================================================== */

.kline-widget {
  margin: 0 0 1.75rem;
  padding: 0.9rem 1rem 0.6rem;
  border: 1px solid var(--fp-border, #27272a);
  border-radius: 14px;
  background:
    radial-gradient(120% 140% at 100% 0%, var(--fp-accent-glow, rgba(255,255,255,0.05)), transparent 60%),
    var(--fp-bg-card, #16161a);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
}

/* ── header: symbol · price · change · range toggle ── */
.kline__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem 1rem;
  margin-bottom: 0.7rem;
}

.kline__id {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.kline__sym {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  color: var(--fp-text, #fafafa);
}

.kline__cur {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--fp-text-muted, #71717a);
  align-self: center;
  padding: 0.05rem 0.35rem;
  border: 1px solid var(--fp-border, #27272a);
  border-radius: 6px;
}

.kline__price {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--fp-text, #fafafa);
  font-variant-numeric: tabular-nums;
}

.kline__chg {
  font-size: 0.85rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.kline__chg.is-up { color: var(--fp-green, #22c55e); }
.kline__chg.is-down { color: var(--fp-red, #ef4444); }

/* MA(20) legend chip — swatch colour is set by JS to match the line */
.kline__ma {
  display: inline-flex;
  align-items: center;
  gap: 0.32rem;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--fp-text-muted, #71717a);
  align-self: center;
}
.kline__ma i {
  display: inline-block;
  width: 14px;
  height: 2px;
  border-radius: 2px;
  background: #3b82f6;
}

/* ── range toggle ── */
.kline__ranges {
  display: inline-flex;
  gap: 2px;
  padding: 2px;
  border: 1px solid var(--fp-border, #27272a);
  border-radius: 10px;
  background: var(--fp-bg-alt, #111113);
}

.kline__range {
  appearance: none;
  border: 0;
  cursor: pointer;
  padding: 0.28rem 0.7rem;
  border-radius: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  font-family: inherit;
  color: var(--fp-text-secondary, #a1a1aa);
  background: transparent;
  transition: background 0.15s ease, color 0.15s ease;
}
.kline__range:hover { color: var(--fp-text, #fafafa); }
.kline__range.is-active {
  color: var(--fp-btn-accent-fg, #09090b);
  background: var(--fp-btn-accent-bg, #fafafa);
}

/* ── chart canvas ── */
.kline__chart {
  width: 100%;
  height: 360px;
}

/* ── footer: updated date · attribution ── */
.kline__foot {
  display: flex;
  justify-content: space-between;
  margin-top: 0.4rem;
  font-size: 0.68rem;
  color: var(--fp-text-muted, #71717a);
}
.kline__brand { opacity: 0.7; }

/* ── loading / error state ── */
.kline__msg {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 360px;
  font-size: 0.85rem;
  color: var(--fp-text-muted, #71717a);
}
.kline-widget.is-empty {
  background: var(--fp-bg-alt, #111113);
}

/* Hide TradingView's tiny in-canvas logo watermark corner if present;
   attribution is preserved in the JS license header and the footer. */
.kline__chart #tv-attr-logo { display: none; }

/* ── mobile ── */
@media screen and (max-width: 600px) {
  .kline-widget { padding: 0.75rem 0.7rem 0.5rem; }
  .kline__chart, .kline__msg { height: 280px; }
  .kline__sym, .kline__price { font-size: 1.05rem; }
}