/* Euler — Market Data Terminal. Design system: "Modern Analytical".
   Tokens + Bootstrap 5.3 bridge + bespoke component skins. Light + dark. */

/* ---- Tokens ---------------------------------------------------------- */
:root, [data-bs-theme="light"] {
  --bg: #F7F8FA;
  --surface: #FFFFFF;
  --surface2: #FBFBFC;
  --border: #E7EAEF;
  --line2: #EDEFF3;
  --text: #101625;
  --muted: #5B6472;
  --muted3: #8A93A2;
  --accent: #4B5EE6;
  --accent-weak: #EEF0FE;
  --pos: #12A15F;
  --pos-bg: #E7F6EE;
  --neg: #E0533B;
  --neg-bg: #FBECE7;
  --warn: #B7791F;
  --warn-bg: #FBF2E0;
  --e1: 0 1px 2px rgba(16,22,34,.05), 0 18px 40px -26px rgba(16,22,34,.20);
}
[data-bs-theme="dark"] {
  --bg: #0B0E14;
  --surface: #12161F;
  --surface2: #141922;
  --border: #232A36;
  --line2: #1B212C;
  --text: #E8ECF3;
  --muted: #98A2B3;
  --muted3: #6B7688;
  --accent: #6E82F0;
  --accent-weak: #1A2036;
  --pos: #35B37E;
  --pos-bg: #122A20;
  --neg: #EC6A50;
  --neg-bg: #2A1714;
  --warn: #D9A441;
  --warn-bg: #2A2110;
  --e1: 0 1px 2px rgba(0,0,0,.5), 0 20px 44px -24px rgba(0,0,0,.7);
}

/* ---- Bootstrap var bridge -------------------------------------------- */
:root {
  --bs-body-bg: var(--bg);
  --bs-body-color: var(--text);
  --bs-border-color: var(--border);
  --bs-primary: var(--accent);
  --bs-link-color: var(--accent);
  --bs-link-hover-color: var(--accent);
  --bs-success: var(--pos);
  --bs-danger: var(--neg);
  --bs-font-sans-serif: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", monospace;
}

/* ---- Base ------------------------------------------------------------ */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--bs-font-sans-serif);
  font-size: 13.5px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-feature-settings: "tnum" 1; }
.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; text-align: right; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: none; }
h1 { font-size: 24px; font-weight: 600; letter-spacing: -0.015em; margin: 0; }

.section-label {
  font-size: 11px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--muted3);
}
.micro { font-size: 11px; color: var(--muted3); }

/* ---- Layout: top bar + app ------------------------------------------- */
.app { width: 100%; }
.topbar {
  position: sticky; top: 0; z-index: 100;
  height: 54px; display: flex; align-items: center; gap: 18px;
  padding: 0 20px;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 9px; }
.brand-mark {
  width: 22px; height: 22px; border-radius: 6px;
  background: var(--text); color: var(--bg);
  display: grid; place-items: center; font-weight: 700; font-size: 13px;
}
.brand-word { font-size: 15px; font-weight: 600; }
.topnav { display: flex; align-items: center; gap: 2px; }
.topnav a {
  font-size: 13px; font-weight: 500; color: var(--muted);
  padding: 7px 12px; border-radius: 8; border-radius: 8px;
}
.topnav a:hover { color: var(--text); }
.topnav a.active { background: var(--accent-weak); color: var(--accent); }
.topnav a.inert { opacity: .55; cursor: default; }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.searchbox {
  height: 34px; display: flex; align-items: center; gap: 8px;
  padding: 0 10px; min-width: 240px;
  background: var(--surface2); border: 1px solid var(--border); border-radius: 9px;
  color: var(--muted3); font-size: 13px;
}
.searchbox input {
  border: 0; background: transparent; outline: 0; color: var(--text);
  font-size: 13px; width: 100%; font-family: var(--bs-font-sans-serif);
}
.kbd {
  font-family: var(--font-mono); font-size: 11px; color: var(--muted3);
  border: 1px solid var(--border); border-radius: 5px; padding: 1px 5px;
}

/* ---- Chips / pills / tags -------------------------------------------- */
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 12px; border-radius: 999px; font-size: 13px; font-weight: 500;
  background: var(--surface); border: 1px solid var(--border); color: var(--text);
  cursor: pointer; white-space: nowrap;
}
.chip .count { font-family: var(--font-mono); font-size: 11px; color: var(--muted3); }
.chip.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.chip.active .count { color: rgba(255,255,255,.75); }

.tag {
  display: inline-flex; align-items: center;
  font-size: 11.5px; padding: 1px 7px; border-radius: 6px;
  border: 1px solid var(--border); color: var(--muted);
}

.pill {
  display: inline-flex; align-items: center; gap: 3px;
  font-family: var(--font-mono); font-size: 12.5px;
  padding: 3px 8px; border-radius: 6px;
}
.pill.pos { color: var(--pos); background: var(--pos-bg); }
.pill.neg { color: var(--neg); background: var(--neg-bg); }
.pill.flat { color: var(--muted3); background: transparent; }

.dot { width: 7px; height: 7px; border-radius: 999px; display: inline-block; }
.dot.live { background: var(--pos); }
.dot.off { background: var(--border); }
.dot.warn { background: var(--warn); }

.val-pos { color: var(--pos); }
.val-neg { color: var(--neg); }
.val-flat { color: var(--muted3); }

/* ---- Segmented control ----------------------------------------------- */
.seg { display: inline-flex; background: var(--surface2); border: 1px solid var(--border); border-radius: 9px; padding: 2px; gap: 2px; }
.seg button {
  border: 0; background: transparent; color: var(--muted);
  font-size: 12px; font-family: var(--bs-font-sans-serif);
  padding: 5px 10px; border-radius: 7px; cursor: pointer;
}
.seg button.mono { font-family: var(--font-mono); }
.seg button.active { background: var(--accent-weak); color: var(--accent); }

/* ---- Card ------------------------------------------------------------ */
.card-e {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; box-shadow: var(--e1);
}

/* ---- Table ----------------------------------------------------------- */
.tbl { width: 100%; }
.tbl .thead, .tbl .trow { display: grid; align-items: center; }
.tbl .thead {
  background: var(--surface2); border-bottom: 1px solid var(--border);
  border-radius: 14px 14px 0 0;
}
.tbl .th {
  font-family: var(--font-mono); font-size: 10.5px; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--muted3); padding: 10px 18px; user-select: none;
}
.tbl .th.num { text-align: right; }
.tbl .th.sortable { cursor: pointer; }
.tbl .th .arrow { opacity: .8; }
.tbl .trow {
  border-bottom: 1px solid var(--line2); cursor: pointer;
}
.tbl .trow:hover { background: var(--surface2); }
.tbl .td { padding: 0 18px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13.5px; }
.tbl .td.num { text-align: right; font-family: var(--font-mono); }
.tbl .td.muted { color: var(--muted); }
.tbl.compact .trow { height: 34px; }
.tbl:not(.compact) .trow { height: 44px; }
.tbl .code-cell { display: flex; align-items: center; gap: 8px; }
.tbl .code-cell .c { color: var(--accent); font-weight: 600; }
.tbl-foot {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 18px; color: var(--muted); font-size: 12.5px;
}

/* stale row */
.trow.stale { opacity: .5; }
.age-warn { color: var(--warn); }

/* ---- Pagination ------------------------------------------------------ */
.pager { display: flex; gap: 4px; align-items: center; }
.pager button {
  border: 1px solid var(--border); background: var(--surface); color: var(--muted);
  border-radius: 8px; min-width: 28px; height: 28px; font-size: 12.5px; cursor: pointer;
  font-family: var(--font-mono);
}
.pager button.active { background: var(--accent-weak); color: var(--accent); border-color: var(--accent-weak); }
.pager button:disabled { opacity: .4; cursor: default; }

/* ---- Main padding ---------------------------------------------------- */
main.screen { padding: 24px 20px 60px; }
.filterrow { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin: 16px 0; }
.filterrow .spacer { margin-left: auto; }
.input {
  height: 34px; padding: 0 10px; background: var(--surface2);
  border: 1px solid var(--border); border-radius: 9px; color: var(--text);
  font-size: 13px; font-family: var(--bs-font-sans-serif); outline: 0; min-width: 160px;
}

/* ---- Sparkline ------------------------------------------------------- */
.spark { display: block; }
.spark path { fill: none; stroke-width: 2; vector-effect: non-scaling-stroke; }

/* ---- Instrument screen ----------------------------------------------- */
.inst-grid {
  display: grid; grid-template-columns: 272px minmax(0, 1fr) 316px;
  height: calc(100vh - 54px);
}
.inst-left { background: var(--surface); border-right: 1px solid var(--border); overflow-y: auto; }
.inst-right { background: var(--surface); border-left: 1px solid var(--border); overflow-y: auto; padding: 16px 16px; }
.inst-center { overflow-y: auto; padding: 18px 22px; }

.wl-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 14px 8px; }
.wl-add { border: 1px solid var(--border); background: var(--surface); color: var(--muted); border-radius: 7px; width: 24px; height: 24px; cursor: default; }
.wl-row { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 8px; padding: 10px 14px; margin: 0 8px 3px; border-radius: 10px; }
.wl-row:hover { background: var(--surface2); }
.wl-row.active { background: var(--accent-weak); }
.wl-main { min-width: 0; display: flex; flex-direction: column; gap: 1px; }
.wl-code { font-size: 13px; font-weight: 600; }
.wl-name { font-size: 11px; color: var(--muted3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.wl-price { display: flex; flex-direction: column; align-items: flex-end; gap: 1px; }
.wl-price .mono { font-size: 12.5px; }
.wl-price .mono:last-child { font-size: 11px; }

.breadcrumb { margin-bottom: 12px; }
.inst-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.inst-title { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.inst-title h1 { font-size: 26px; letter-spacing: -0.015em; }
.btn-watch { border: 1px solid var(--border); background: var(--surface); color: var(--muted); border-radius: 9px; padding: 7px 12px; font-size: 13px; cursor: default; }

.inst-priceline { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin: 12px 0 20px; }
.hero-price { font-size: 34px; font-weight: 500; letter-spacing: -0.01em; }
.unit-label { color: var(--muted3); }

.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 20px; }
.stat-card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 13px 15px; }
.stat-label { margin-bottom: 6px; }
.stat-value { font-size: 14px; }

.chart-card { overflow: hidden; }
.chart-toolbar { display: flex; align-items: center; gap: 12px; padding: 10px 14px; border-bottom: 1px solid var(--border); }
.ohlc-legend { margin-left: auto; }
.chart-body { height: 380px; }
.empty-chart { display: grid; place-items: center; height: 420px; }
.empty-note { color: var(--muted3); font-size: 13px; }

.ctx-tabs { display: flex; gap: 16px; border-bottom: 1px solid var(--border); margin-bottom: 14px; }
.ctx-tabs button { border: 0; background: transparent; color: var(--muted); font-size: 13px; padding: 8px 0; cursor: pointer; border-bottom: 2px solid transparent; }
.ctx-tabs button.active { color: var(--accent); border-bottom-color: var(--accent); }
.kv-row { display: flex; align-items: center; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--line2); }
.kv-k { color: var(--muted3); }
.kv-v { font-size: 12.5px; }