/* ─────────────────────────────────────────────────────────────
   LSTL — Design Tokens
   Linear의 차분함 + Bloomberg의 정보밀도, 한국 금융 관례 반영
   ───────────────────────────────────────────────────────────── */

:root {
  /* type */
  --font-sans: "Pretendard Variable", "Pretendard", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* spacing scale */
  --sp-1: 4px;
  --sp-2: 6px;
  --sp-3: 8px;
  --sp-4: 12px;
  --sp-5: 16px;
  --sp-6: 20px;
  --sp-7: 24px;
  --sp-8: 32px;
  --sp-9: 40px;
  --sp-10: 56px;
  --sp-11: 72px;

  /* radii */
  --r-1: 6px;
  --r-2: 10px;
  --r-3: 14px;
  --r-4: 18px;
  --r-pill: 999px;

  /* z */
  --z-nav: 50;
  --z-modal: 90;
  --z-toast: 100;

  /* motion */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

  /* status hues (constant across themes; vary lightness) */
  --hue-buy: 22;        /* 한국 관례: 빨강 = 매수/상승 */
  --hue-sell: 235;      /* 한국 관례: 파랑 = 매도/하락 */
  --hue-warn: 70;
  --hue-info: 220;
  --hue-success: 152;
  --hue-critical: 14;
}

/* ─── DARK (default) ─────────────────────────────────────────── */
:root, [data-theme="dark"] {
  color-scheme: dark;

  /* surfaces */
  --bg: oklch(0.165 0.011 248);          /* deep navy-black */
  --bg-elev-1: oklch(0.205 0.013 248);
  --bg-elev-2: oklch(0.245 0.014 248);
  --bg-inset: oklch(0.140 0.010 248);
  --bg-translucent: oklch(0.205 0.013 248 / 0.78);

  /* lines */
  --border: oklch(0.295 0.014 248);
  --border-strong: oklch(0.380 0.015 248);
  --border-subtle: oklch(0.245 0.012 248);

  /* text */
  --text: oklch(0.965 0.005 248);
  --text-2: oklch(0.745 0.012 248);
  --text-3: oklch(0.555 0.012 248);
  --text-4: oklch(0.420 0.012 248);

  /* brand accent — cool cyan-blue */
  --accent: oklch(0.72 0.13 230);
  --accent-2: oklch(0.62 0.16 230);
  --accent-soft: oklch(0.30 0.07 230);
  --accent-ink: oklch(0.20 0.02 230);

  /* status (action) */
  --buy: oklch(0.685 0.21 var(--hue-buy));
  --buy-soft: oklch(0.30 0.10 var(--hue-buy));
  --buy-fg: oklch(0.78 0.18 var(--hue-buy));

  --sell: oklch(0.685 0.17 var(--hue-sell));
  --sell-soft: oklch(0.30 0.09 var(--hue-sell));
  --sell-fg: oklch(0.78 0.16 var(--hue-sell));

  --hold: oklch(0.62 0.012 248);
  --hold-soft: oklch(0.27 0.010 248);

  --uncertain: oklch(0.80 0.17 var(--hue-warn));
  --uncertain-soft: oklch(0.32 0.10 var(--hue-warn));

  --critical: oklch(0.66 0.22 var(--hue-critical));
  --critical-soft: oklch(0.30 0.13 var(--hue-critical));

  --warn: oklch(0.80 0.17 var(--hue-warn));
  --warn-soft: oklch(0.32 0.10 var(--hue-warn));

  --info: oklch(0.72 0.13 var(--hue-info));
  --info-soft: oklch(0.30 0.08 var(--hue-info));

  --success: oklch(0.72 0.15 var(--hue-success));
  --success-soft: oklch(0.30 0.08 var(--hue-success));

  /* market badge accents */
  --m-kr: oklch(0.685 0.21 var(--hue-buy));
  --m-us: oklch(0.74 0.10 268);
  /* KR worker job: warm/KR-adjacent but a distinct hue from the red KR cycle */
  --m-kr-worker: oklch(0.76 0.16 45);

  /* shadows */
  --shadow-1: 0 1px 0 rgba(255,255,255,0.04) inset, 0 1px 2px rgba(0,0,0,0.30);
  --shadow-2: 0 1px 0 rgba(255,255,255,0.04) inset, 0 4px 16px rgba(0,0,0,0.36);
  --shadow-pop: 0 1px 0 rgba(255,255,255,0.05) inset, 0 12px 40px rgba(0,0,0,0.55);

  /* chart series */
  --chart-grid: oklch(0.30 0.013 248);
  --chart-axis: oklch(0.46 0.012 248);
}

/* ─── LIGHT ──────────────────────────────────────────────────── */
[data-theme="light"] {
  color-scheme: light;

  --bg: oklch(0.985 0.003 248);
  --bg-elev-1: oklch(1 0 0);
  --bg-elev-2: oklch(1 0 0);
  --bg-inset: oklch(0.965 0.005 248);
  --bg-translucent: oklch(1 0 0 / 0.78);

  --border: oklch(0.92 0.006 248);
  --border-strong: oklch(0.82 0.008 248);
  --border-subtle: oklch(0.95 0.005 248);

  --text: oklch(0.180 0.012 248);
  --text-2: oklch(0.410 0.014 248);
  --text-3: oklch(0.570 0.014 248);
  --text-4: oklch(0.680 0.012 248);

  --accent: oklch(0.52 0.16 230);
  --accent-2: oklch(0.46 0.18 230);
  --accent-soft: oklch(0.95 0.04 230);
  --accent-ink: oklch(0.30 0.10 230);

  --buy: oklch(0.55 0.22 var(--hue-buy));
  --buy-soft: oklch(0.96 0.04 var(--hue-buy));
  --buy-fg: oklch(0.50 0.22 var(--hue-buy));

  --sell: oklch(0.50 0.18 var(--hue-sell));
  --sell-soft: oklch(0.95 0.04 var(--hue-sell));
  --sell-fg: oklch(0.46 0.18 var(--hue-sell));

  --hold: oklch(0.56 0.012 248);
  --hold-soft: oklch(0.94 0.006 248);

  --uncertain: oklch(0.62 0.17 var(--hue-warn));
  --uncertain-soft: oklch(0.96 0.06 var(--hue-warn));

  --critical: oklch(0.52 0.22 var(--hue-critical));
  --critical-soft: oklch(0.95 0.05 var(--hue-critical));

  --warn: oklch(0.62 0.17 var(--hue-warn));
  --warn-soft: oklch(0.96 0.06 var(--hue-warn));

  --info: oklch(0.52 0.16 var(--hue-info));
  --info-soft: oklch(0.95 0.05 var(--hue-info));

  --success: oklch(0.52 0.16 var(--hue-success));
  --success-soft: oklch(0.95 0.05 var(--hue-success));

  --m-kr: oklch(0.55 0.22 var(--hue-buy));
  --m-us: oklch(0.50 0.13 268);
  --m-kr-worker: oklch(0.62 0.17 45);

  --shadow-1: 0 1px 2px rgba(15, 20, 30, 0.04), 0 0 0 0.5px rgba(15, 20, 30, 0.05);
  --shadow-2: 0 4px 16px rgba(15, 20, 30, 0.06), 0 0 0 0.5px rgba(15, 20, 30, 0.05);
  --shadow-pop: 0 14px 48px rgba(15, 20, 30, 0.14), 0 0 0 0.5px rgba(15, 20, 30, 0.08);

  --chart-grid: oklch(0.93 0.006 248);
  --chart-axis: oklch(0.70 0.010 248);
}

/* ─── Base ───────────────────────────────────────────────────── */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  font-feature-settings: 'ss01', 'cv01', 'tnum';
  font-size: 14px;
  line-height: 1.45;
  letter-spacing: -0.005em;
  overscroll-behavior-y: contain;
  transition: background-color .25s var(--ease-out), color .25s var(--ease-out);
  word-break: keep-all;
}

button, input, select, textarea {
  font: inherit; color: inherit;
  background: transparent; border: 0; padding: 0;
}
button { cursor: pointer; -webkit-tap-highlight-color: transparent; }

.mono { font-family: var(--font-mono); font-feature-settings: 'zero', 'tnum'; letter-spacing: -0.01em; }
.tnum { font-variant-numeric: tabular-nums; }

/* selection */
::selection { background: var(--accent-soft); color: var(--text); }

/* scrollbars */
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb {
  background: color-mix(in oklch, var(--text-3) 30%, transparent);
  border-radius: 99px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
*::-webkit-scrollbar-thumb:hover { background: color-mix(in oklch, var(--text-3) 55%, transparent); background-clip: padding-box; border: 2px solid transparent; }

/* focus */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

/* shimmer */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.skeleton {
  background: linear-gradient(90deg, transparent 0%, var(--bg-elev-2) 50%, transparent 100%);
  background-size: 200% 100%;
  animation: shimmer 1.6s ease-in-out infinite;
}

/* dot pulse */
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(0.7); }
}
.pulse-dot { animation: pulse-dot 1.4s var(--ease-in-out) infinite; }

@keyframes fade-up {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fade-up .4s var(--ease-out) both; }

@keyframes ring-pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in oklch, var(--accent) 50%, transparent); }
  100% { box-shadow: 0 0 0 10px transparent; }
}