/* btc-whale frontend — Tinted Gray system (ai_native_web globals.css 토큰 동일).
 * 채도 12-22%, 원색 금지. HEX 직접 박지 말고 토큰 사용. */

:root {
  --color-white: #FFFFFF;
  --color-snow: #FAFAFA;
  --color-pearl: #F5F5F5;
  --color-silk: #EEEEEE;
  --color-graphite: #1A1A2E;
  --color-charcoal: #2D2D44;
  --color-slate: #6B7280;
  --color-mist: #9CA3AF;
  --color-line: #E0E0E0;
  --color-line-light: #F0F0F0;
  --color-accent: #3B5998;
  --color-accent-light: #4A6BA8;

  /* Badge tints — copied verbatim from ai_native_web/globals.css */
  --color-badge-blue-bg: #EFF1F5;
  --color-badge-blue-fg: #3B4157;
  --color-badge-blue-border: #D8DCE6;
  --color-badge-teal-bg: #EFF5F4;
  --color-badge-teal-fg: #3B524E;
  --color-badge-teal-border: #D8E6E3;
  --color-badge-violet-bg: #F1EFF5;
  --color-badge-violet-fg: #433B57;
  --color-badge-violet-border: #DCD8E6;
  --color-badge-amber-bg: #F5F3EF;
  --color-badge-amber-fg: #574E3B;
  --color-badge-amber-border: #E6E1D8;
  --color-badge-sage-solid: #3D5247;
  --color-badge-sage-text: #F0F5F2;
  --color-badge-rose-bg: #F5F0F1;
  --color-badge-rose-fg: #8C7A7E;
  --color-badge-rose-border: #E6D8DB;
  --color-badge-mauve-solid: #2E2B3D;
  --color-badge-mauve-text: #E8E6F0;
  --color-badge-slate-bg: #F0F1F3;
  --color-badge-slate-fg: #7A8291;
  --color-badge-slate-border: #DDDFE4;

  --font-sans: "Pretendard Variable", "Pretendard", -apple-system, BlinkMacSystemFont, system-ui, Roboto, "Helvetica Neue", sans-serif;
  --font-mono: "SF Mono", "Fira Code", ui-monospace, monospace;
}

* { box-sizing: border-box; }

html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  margin: 0;
  background: var(--color-white);
  color: var(--color-graphite);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.55;
}

::selection { background: var(--color-accent); color: var(--color-white); }

a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.page-header {
  border-bottom: 1px solid var(--color-line);
  background: var(--color-snow);
  padding: 28px 0 22px;
}
.page-header h1 {
  margin: 0 0 4px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.page-header .sub {
  margin: 0 0 6px;
  color: var(--color-slate);
  font-size: 13px;
}
.page-header .meta {
  margin: 8px 0 0;
  color: var(--color-mist);
  font-size: 12px;
  font-family: var(--font-mono);
}

/* Filters */
.filters {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-line);
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 10;
}
.filter-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.filter-row:last-child { margin-bottom: 0; }
.filter-label {
  font-size: 11px;
  color: var(--color-slate);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  min-width: 64px;
}
.chip-group {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.chip {
  appearance: none;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  color: var(--color-charcoal);
  padding: 5px 11px;
  border-radius: 999px;
  font-size: 12.5px;
  font-family: inherit;
  line-height: 1.3;
  transition: background 80ms ease, border-color 80ms ease, color 80ms ease;
}
.chip:hover { background: var(--color-pearl); }
.chip.active {
  background: var(--color-graphite);
  color: var(--color-white);
  border-color: var(--color-graphite);
}

/* Grid */
main { padding: 24px 0 60px; }
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}

/* Card */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: 10px;
  padding: 14px 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 130px;
  transition: border-color 80ms ease, box-shadow 80ms ease;
}
.card:hover { border-color: var(--color-line); box-shadow: 0 1px 4px rgba(26,26,46,0.06); }
.card.inactive {
  background: var(--color-snow);
  color: var(--color-mist);
  border-style: dashed;
}
.card.inactive .card-label { color: var(--color-slate); }
.card.inactive .card-balance { color: var(--color-mist); }

.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}
.card-label {
  font-weight: 600;
  font-size: 13.5px;
  line-height: 1.35;
  color: var(--color-graphite);
  word-break: break-word;
}
.card-badges {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

.badge {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 10.5px;
  font-weight: 500;
  border: 1px solid transparent;
  white-space: nowrap;
}
.badge-chain-btc {
  background: var(--color-badge-amber-bg);
  color: var(--color-badge-amber-fg);
  border-color: var(--color-badge-amber-border);
}
.badge-chain-eth {
  background: var(--color-badge-violet-bg);
  color: var(--color-badge-violet-fg);
  border-color: var(--color-badge-violet-border);
}

/* Category chips — Tinted Gray semantic mapping */
.badge-cat-etf    { background: var(--color-badge-blue-bg);   color: var(--color-badge-blue-fg);   border-color: var(--color-badge-blue-border); }
.badge-cat-gov    { background: var(--color-badge-slate-bg);  color: var(--color-badge-slate-fg);  border-color: var(--color-badge-slate-border); }
.badge-cat-mstr   { background: var(--color-badge-blue-bg);   color: var(--color-badge-blue-fg);   border-color: var(--color-badge-blue-border); }
.badge-cat-miner  { background: var(--color-badge-amber-bg);  color: var(--color-badge-amber-fg);  border-color: var(--color-badge-amber-border); }
.badge-cat-hack   { background: var(--color-badge-rose-bg);   color: var(--color-badge-rose-fg);   border-color: var(--color-badge-rose-border); }
.badge-cat-cex    { background: var(--color-badge-teal-bg);   color: var(--color-badge-teal-fg);   border-color: var(--color-badge-teal-border); }
.badge-cat-whale  { background: var(--color-badge-violet-bg); color: var(--color-badge-violet-fg); border-color: var(--color-badge-violet-border); }
.badge-cat-defi   { background: var(--color-badge-teal-bg);   color: var(--color-badge-teal-fg);   border-color: var(--color-badge-teal-border); }
.badge-partial    { background: var(--color-pearl);           color: var(--color-slate);           border-color: var(--color-line); }

.card-balance {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
  color: var(--color-graphite);
  letter-spacing: -0.01em;
}
.card-balance .unit {
  font-size: 11.5px;
  color: var(--color-slate);
  margin-left: 4px;
  font-weight: 500;
}
.card-usd {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-slate);
}

.card-delta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-family: var(--font-mono);
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px dashed var(--color-line-light);
}
.delta-arrow { width: 10px; display: inline-block; text-align: center; font-weight: 700; }
.delta-up    { color: var(--color-badge-sage-solid); }
.delta-down  { color: var(--color-badge-rose-fg); }
.delta-flat  { color: var(--color-mist); }
.delta-window {
  margin-left: auto;
  font-size: 10.5px;
  color: var(--color-mist);
  text-transform: lowercase;
}

.card-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 10.5px;
  color: var(--color-mist);
  font-family: var(--font-mono);
}
.card-foot a { color: var(--color-mist); }
.card-foot a:hover { color: var(--color-accent); }

.card-empty-msg {
  font-size: 12px;
  color: var(--color-mist);
  font-style: italic;
}

/* Skeleton */
.skel-card {
  background: var(--color-snow);
  border: 1px solid var(--color-line-light);
  border-radius: 10px;
  height: 130px;
  animation: pulse 1.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 0.85; }
}

.empty, .error {
  text-align: center;
  color: var(--color-slate);
  padding: 40px 0;
}
.error { color: var(--color-badge-rose-fg); }

/* Footer */
.page-footer {
  border-top: 1px solid var(--color-line);
  background: var(--color-snow);
  padding: 16px 0;
  color: var(--color-mist);
  font-size: 11.5px;
  font-family: var(--font-mono);
}
.page-footer .container { display: flex; gap: 8px; flex-wrap: wrap; }
.page-footer a { color: var(--color-slate); }

@media (max-width: 540px) {
  .grid { grid-template-columns: 1fr; }
  .filter-row { flex-direction: column; align-items: flex-start; }
  .filter-label { min-width: 0; }
}