/* ==========================================================================
   Finance Bot — Components
   Depends on tokens.css. Import order:
       <link rel="stylesheet" href="/static/css/tokens.css">
       <link rel="stylesheet" href="/static/css/components.css">

   BEM-ish: .block, .block__element, .block--modifier
   ========================================================================== */


/* --------------------------------------------------------------------------
   Glass Card — base surface shared by all cards
   -------------------------------------------------------------------------- */
.glass-card {
  position: relative;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-card);
  padding: var(--pad-standard);
  color: var(--text);
  transition: border-color var(--dur-hover) var(--ease);
}
.glass-card--compact { padding: var(--pad-compact); border-radius: var(--r-md); }
.glass-card--hero    { padding: var(--pad-hero);    border-radius: var(--r-xl); }

.glass-card:hover { border-color: var(--glass-border-hi); }


/* --------------------------------------------------------------------------
   Top Bar — sticky header with logo, nav, trust pill
   -------------------------------------------------------------------------- */
.top-bar {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  height: var(--header-height);
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: 0 var(--page-pad-dt);
  background: var(--glass-bg-strong);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
}

.top-bar__logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-hi);
  text-decoration: none;
  font-family: var(--font-sans);
  font-weight: var(--fw-semi);
  font-size: var(--fs-h3);
  letter-spacing: var(--tr-card);
}
.top-bar__mark {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(43, 227, 138, 0.18), rgba(43, 227, 138, 0.05));
  border: 1px solid rgba(43, 227, 138, 0.25);
  box-shadow: var(--shadow-logo-glow);
  color: var(--gain);
}
.top-bar__brand-accent { color: var(--gain); font-weight: var(--fw-semi); }


/* Nav */
.nav {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav::-webkit-scrollbar { display: none; }

.nav-link {
  position: relative;
  padding: 8px 12px;
  font-family: var(--font-sans);
  font-size: var(--fs-mono-m);
  font-weight: var(--fw-medium);
  color: var(--text-lo);
  text-decoration: none;
  border-radius: 8px;
  white-space: nowrap;
  transition:
    color var(--dur-hover) var(--ease),
    background var(--dur-hover) var(--ease);
}
.nav-link:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}
.nav-link:focus-visible {
  outline: 2px solid var(--info);
  outline-offset: 2px;
}
.nav-link--active {
  color: var(--text-hi);
  background: rgba(255, 255, 255, 0.05);
}
.nav-link--active::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: -1px;
  height: 2px;
  border-radius: 2px 2px 0 0;
  background: var(--info);
  box-shadow: 0 0 12px var(--info-glow);
}


/* --------------------------------------------------------------------------
   Trust Pill + Tooltip
   -------------------------------------------------------------------------- */
.trust-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px 6px 8px;
  border-radius: var(--r-pill);
  background: rgba(245, 194, 74, 0.10);
  border: 1px solid rgba(245, 194, 74, 0.25);
  color: var(--warn);
  font-family: var(--font-sans);
  font-size: var(--fs-label);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tr-meta);
  white-space: nowrap;
  cursor: pointer;
  transition: background var(--dur-hover) var(--ease);
}
.trust-pill:hover { background: rgba(245, 194, 74, 0.16); }
.trust-pill:focus-visible {
  outline: 2px solid var(--info);
  outline-offset: 2px;
}
.trust-pill__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--warn);
  box-shadow: 0 0 10px rgba(245, 194, 74, 0.6);
  animation: trust-pulse 1.8s ease-in-out infinite;
}
@keyframes trust-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(0.85); }
}
@media (prefers-reduced-motion: reduce) {
  .trust-pill__dot { animation: none; }
}

.trust-tooltip {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 300px;
  padding: var(--space);
  background: var(--glass-bg-strong);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border-hi);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-tooltip);
  display: none;
  z-index: var(--z-tooltip);
  font-size: var(--fs-label);
  color: var(--text);
}
.trust-tooltip--open { display: block; }
.trust-tooltip::before {
  content: "";
  position: absolute;
  top: -6px;
  right: 24px;
  width: 12px;
  height: 12px;
  background: inherit;
  border-left: 1px solid var(--glass-border-hi);
  border-top: 1px solid var(--glass-border-hi);
  transform: rotate(45deg);
}
.trust-tooltip__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-sm);
  color: var(--text-hi);
  font-weight: var(--fw-medium);
  font-size: var(--fs-mono-m);
}
.trust-tooltip__row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--text-mid);
}
.trust-tooltip__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--text-hi);
}


/* --------------------------------------------------------------------------
   Index Card — price, delta, sparkline
   -------------------------------------------------------------------------- */
.index-card {
  /* inherits .glass-card */
  display: flex;
  flex-direction: column;
  gap: 14px;
  cursor: pointer;
  overflow: hidden;
}
.index-card:hover,
.index-card--hover {
  border-color: var(--glass-border-hi);
  background: rgba(28, 34, 48, 0.6);
}
.index-card:hover::after,
.index-card--hover::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(56, 217, 244, 0.4), transparent 60%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}
.index-card:focus-visible {
  outline: 2px solid var(--info);
  outline-offset: 2px;
}

.index-card__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-sm);
}
.index-card__name {
  font-size: var(--fs-body);
  color: var(--text-hi);
  font-weight: var(--fw-medium);
  letter-spacing: -0.005em;
}
.index-card__sym {
  font-family: var(--font-mono);
  font-size: var(--fs-meta);
  color: var(--text-lo);
  margin-top: 2px;
  letter-spacing: var(--tr-label);
}
.index-card__price {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-mono-l);
  font-weight: var(--fw-medium);
  color: var(--text-hi);
  line-height: var(--lh-number);
}
.index-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--fs-meta);
  color: var(--text-mid);
}

/* Sparkline inside index-card */
.index-card__spark {
  width: 100%;
  height: 44px;
  display: block;
  overflow: visible;
}
/* Stroke color follows delta direction. JS sets `--spark-stroke` per instance;
   when |delta| < --spark-deadzone, render in --text-mid (grey, no signal). */
.index-card__spark path {
  transition: stroke var(--dur-state) var(--ease);
}
.index-card--flat .index-card__spark path { stroke: var(--text-mid); }


/* --------------------------------------------------------------------------
   Heatmap Cell — 5-step sector tile
   Thresholds: <-2  /  -2..-0.5  /  ±0.5  /  +0.5..+2  /  >+2 percent
   -------------------------------------------------------------------------- */
.heatmap-cell {
  position: relative;
  border-radius: var(--r-md);
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  min-height: 84px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition:
    transform var(--dur-hover) var(--ease),
    border-color var(--dur-hover) var(--ease);
  cursor: default;
}
.heatmap-cell:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.12);
}
@media (prefers-reduced-motion: reduce) {
  .heatmap-cell { transition: none; }
  .heatmap-cell:hover { transform: none; }
}

.heatmap-cell__name {
  font-size: var(--fs-mono-m);
  font-weight: var(--fw-medium);
  color: var(--text-hi);
  letter-spacing: -0.005em;
}
.heatmap-cell__sub {
  font-size: var(--fs-meta);
  color: var(--text-mid);
  margin-top: 2px;
}
.heatmap-cell__delta {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 16px;
  font-weight: var(--fw-medium);
  letter-spacing: var(--tr-card);
}

/* Step modifiers — fills max 80 % so text stays legible at both extremes */
.heatmap-cell--strong-down {
  background: var(--heat-strong-down);
  border-color: rgba(255, 77, 122, 0.35);
}
.heatmap-cell--strong-down .heatmap-cell__name,
.heatmap-cell--strong-down .heatmap-cell__delta { color: var(--loss-text); }
.heatmap-cell--strong-down .heatmap-cell__sub   { color: var(--loss-text); }

.heatmap-cell--down       { background: var(--heat-down); }
.heatmap-cell--down .heatmap-cell__delta { color: var(--loss); }

.heatmap-cell--flat       { background: var(--heat-flat); }
.heatmap-cell--flat .heatmap-cell__delta { color: var(--text-mid); }

.heatmap-cell--up         { background: var(--heat-up); }
.heatmap-cell--up .heatmap-cell__delta   { color: var(--gain); }

.heatmap-cell--strong-up {
  background: var(--heat-strong-up);
  border-color: rgba(43, 227, 138, 0.35);
}
.heatmap-cell--strong-up .heatmap-cell__name,
.heatmap-cell--strong-up .heatmap-cell__delta { color: var(--gain-text); }
.heatmap-cell--strong-up .heatmap-cell__sub   { color: var(--gain-text); }


/* --------------------------------------------------------------------------
   KPI Tile — label, big mono value, ticker, delta + foot
   -------------------------------------------------------------------------- */
.kpi-tile {
  /* inherits .glass-card */
  display: flex;
  flex-direction: column;
}
.kpi-tile__label {
  font-size: var(--fs-meta);
  font-weight: var(--fw-medium);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-mid);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: var(--space-md);
}
.kpi-tile__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: var(--fw-medium);
  font-size: 28px;
  color: var(--text-hi);
  line-height: var(--lh-number);
  letter-spacing: var(--tr-card);
  margin-bottom: 10px;
}
.kpi-tile__ticker {
  font-family: var(--font-mono);
  font-size: var(--fs-meta);
  color: var(--text-lo);
  letter-spacing: var(--tr-label);
}
.kpi-tile__foot {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
  font-size: var(--fs-meta);
  color: var(--text-lo);
}


/* --------------------------------------------------------------------------
   Delta Pill — universal ±Δ % indicator
   Glyph: ▲ up  /  ▼ down  /  ● flat (render via ::before in markup or helper)
   -------------------------------------------------------------------------- */
.delta-pill {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-label);
  font-weight: var(--fw-medium);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: var(--r-pill);
  line-height: 1;
  white-space: nowrap;
}
.delta-pill__glyph { font-size: 9px; }

.delta-pill--gain {
  color: var(--gain);
  background: rgba(43, 227, 138, 0.10);
}
.delta-pill--loss {
  color: var(--loss);
  background: rgba(255, 77, 122, 0.10);
}
.delta-pill--flat {
  color: var(--text-mid);
  background: rgba(255, 255, 255, 0.05);
}
.delta-pill--flat .delta-pill__glyph { opacity: 0.6; }


/* --------------------------------------------------------------------------
   Gauge — Fear & Greed (220° arc)
   Angle formula (JS):  angle = -180 + value * 1.8   (value 0–100)
   -------------------------------------------------------------------------- */
.gauge {
  position: relative;
  width: 100%;
}
.gauge__svg {
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
}

/* Arc uses a left→right gradient: loss → warn → gain.
   Define the SVG <linearGradient id="gauge-arc"> in markup once. */
.gauge__arc-track {
  fill: none;
  stroke: rgba(255, 255, 255, 0.06);
  stroke-width: 12;
  stroke-linecap: round;
}
.gauge__arc {
  fill: none;
  stroke: url(#gauge-arc);
  stroke-width: 12;
  stroke-linecap: round;
}

.gauge__needle {
  stroke: var(--text-hi);
  stroke-width: 2.5;
  stroke-linecap: round;
  transform-origin: 110px 125px;      /* gauge center in SVG coords */
  transition: transform var(--dur-panel) var(--ease);
}
.gauge__needle-head { fill: var(--text-hi); }
.gauge__hub {
  fill: var(--bg-1);
  stroke: rgba(255, 255, 255, 0.25);
  stroke-width: 1.5;
}
@media (prefers-reduced-motion: reduce) {
  .gauge__needle { transition: none; }
}

.gauge__center {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 6px;
  text-align: center;
  pointer-events: none;
}
.gauge__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-display);
  font-weight: var(--fw-medium);
  color: var(--text-hi);
  line-height: 1;
  letter-spacing: var(--tr-tight);
}
.gauge__label {
  font-size: var(--fs-meta);
  font-weight: var(--fw-semi);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 2px;
  color: var(--warn);
}
/* Label color follows zone */
.gauge--fear    .gauge__label { color: var(--loss); }
.gauge--neutral .gauge__label { color: var(--text-mid); }
.gauge--greed   .gauge__label { color: var(--warn); }
.gauge--extreme-greed .gauge__label { color: var(--gain); }


/* --------------------------------------------------------------------------
   Utility — focus ring default
   -------------------------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--info);
  outline-offset: 2px;
  border-radius: inherit;
}


/* ==========================================================================
   Mobile fallback — drop glass blur below 768 px for performance.
   Cards fall back to solid --bg-2, header gets near-opaque bg.
   ========================================================================== */
@media (max-width: 767px) {
  .glass-card,
  .index-card,
  .kpi-tile,
  .top-bar,
  .trust-tooltip {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .glass-card,
  .index-card,
  .kpi-tile {
    background: var(--bg-2);
  }

  .top-bar {
    background: rgba(17, 21, 30, 0.95);
    padding: 0 var(--page-pad-mb);
    gap: var(--space-md);
  }

  .trust-tooltip {
    background: var(--bg-2);
  }
}