/* Markets Dashboard V2: shared theme for index.html and arb.html.
 * Layout: a bullion ledger. One centered column of glass panels floats over a
 * slow gold glow (background.js); a mono ticker tape sits under the masthead.
 * Light (ivory + gold) is the default; dark follows the OS until the toggle
 * stores an explicit choice in data-theme on <html>.
 */
:root {
  --page: #faf5ea;                       /* ivory ground */
  --card: #fffcf5;                       /* solid surface (hover labels) */
  --glass: rgba(255, 252, 245, 0.7);
  --glass-strong: rgba(255, 252, 245, 0.9);
  --ink: #221c12;
  --ink-2: #5b5142;
  --muted: #716552;
  --rule: rgba(60, 44, 18, 0.12);
  --rule-strong: rgba(60, 44, 18, 0.24);
  --gold: #c9952b;                       /* fills only: ink text sits on it */
  --gold-ink: #82600f;                   /* gold for text and links */
  --gold-soft: rgba(201, 149, 43, 0.14);
  --up: #2e7650;
  --down: #ae3f2e;
  --shadow: 0 1px 0 rgba(255, 255, 255, 0.7) inset, 0 18px 40px -26px rgba(84, 58, 12, 0.45);
  --chart-grid: rgba(60, 44, 18, 0.1);
  --chart-axis: rgba(60, 44, 18, 0.3);
  /* Glow clouds + cursor halo. Tuned so text keeps 4.5:1 even where two
     clouds overlap under the halo (checked numerically, both themes). */
  --glow-1: rgba(242, 190, 82, 0.62);    /* gold */
  --glow-2: rgba(248, 166, 116, 0.46);   /* peach */
  --glow-3: rgba(150, 182, 232, 0.24);   /* soft blue */
  --glow-4: rgba(252, 220, 150, 0.6);    /* pale gold */
  --glow-5: rgba(232, 154, 126, 0.34);   /* rose clay */
  --glow-halo: rgba(255, 202, 76, 0.55); /* follows the cursor */
  --grain: 0.55;
  /* chart series: validated categorical order (dataviz), light steps */
  --series-1: #2a78d6; --series-2: #eb6834; --series-3: #1baf7a; --series-4: #eda100;
  --series-5: #e87ba4; --series-6: #008300; --series-7: #4a3aa7; --series-8: #e34948;

  --font-display: "Bricolage Grotesque", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --font-body: "Newsreader", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --step--1: 0.8125rem;
  --step-0: 1.0625rem;
  --step-1: 1.25rem;
  --step-2: 1.6rem;
  --step-3: clamp(2.4rem, 5.2vw, 3.7rem);
  --radius: 18px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --page: #13100b;
    --card: #1e1a13;
    --glass: rgba(30, 26, 19, 0.7);
    --glass-strong: rgba(30, 26, 19, 0.9);
    --ink: #f3ebda;
    --ink-2: #cdbfa4;
    --muted: #a0937a;
    --rule: rgba(243, 235, 218, 0.1);
    --rule-strong: rgba(243, 235, 218, 0.22);
    --gold: #d9a93b;
    --gold-ink: #e6bc5c;
    --gold-soft: rgba(217, 169, 59, 0.16);
    --up: #62be8c;
    --down: #e58068;
    --shadow: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 20px 44px -28px rgba(0, 0, 0, 0.9);
    --chart-grid: rgba(243, 235, 218, 0.08);
    --chart-axis: rgba(243, 235, 218, 0.24);
    --glow-1: rgba(214, 150, 44, 0.26);
    --glow-2: rgba(168, 84, 40, 0.28);
    --glow-3: rgba(58, 82, 160, 0.28);
    --glow-4: rgba(232, 182, 90, 0.16);
    --glow-5: rgba(130, 56, 76, 0.24);
    --glow-halo: rgba(226, 160, 60, 0.13);
    --grain: 0.35;
    --series-1: #3987e5; --series-2: #d95926; --series-3: #199e70; --series-4: #c98500;
    --series-5: #d55181; --series-6: #008300; --series-7: #9085e9; --series-8: #e66767;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --page: #13100b;
  --card: #1e1a13;
  --glass: rgba(30, 26, 19, 0.7);
  --glass-strong: rgba(30, 26, 19, 0.9);
  --ink: #f3ebda;
  --ink-2: #cdbfa4;
  --muted: #a0937a;
  --rule: rgba(243, 235, 218, 0.1);
  --rule-strong: rgba(243, 235, 218, 0.22);
  --gold: #d9a93b;
  --gold-ink: #e6bc5c;
  --gold-soft: rgba(217, 169, 59, 0.16);
  --up: #62be8c;
  --down: #e58068;
  --shadow: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 20px 44px -28px rgba(0, 0, 0, 0.9);
  --chart-grid: rgba(243, 235, 218, 0.08);
  --chart-axis: rgba(243, 235, 218, 0.24);
  --glow-1: rgba(214, 150, 44, 0.26);
  --glow-2: rgba(168, 84, 40, 0.28);
  --glow-3: rgba(58, 82, 160, 0.28);
  --glow-4: rgba(232, 182, 90, 0.16);
  --glow-5: rgba(130, 56, 76, 0.24);
  --glow-halo: rgba(226, 160, 60, 0.13);
  --grain: 0.35;
  --series-1: #3987e5; --series-2: #d95926; --series-3: #199e70; --series-4: #c98500;
  --series-5: #d55181; --series-6: #008300; --series-7: #9085e9; --series-8: #e66767;
  color-scheme: dark;
}

/* ------------------------------------------------------------------ base */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
}
img, svg { max-width: 100%; }
a { color: var(--gold-ink); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--gold-ink); outline-offset: 3px; border-radius: 6px; }
[hidden] { display: none !important; }
svg[hidden] { display: none !important; }

/* The glow canvas and the grain sit behind the page content (z-index 0),
   above the body's own ivory background. */
#glow {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: var(--grain);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.25 0 0 0 0 0.18 0 0 0 0 0.06 0 0 0 0.09 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

.shell {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding-inline: clamp(16px, 4vw, 40px);
  padding-block: clamp(28px, 6vw, 56px) 64px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* ------------------------------------------------------------ type roles */
.eyebrow, .label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
/* The eyebrow sits on the bare (moving) background, not on a card. */
.eyebrow { color: var(--ink-2); }
h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--ink);
  text-wrap: balance;
  margin: 0;
}
h1 {
  font-size: var(--step-3);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.035em;
  font-variation-settings: "opsz" 96;
}
h2 {
  font-size: var(--step-2);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}
h3 {
  font-size: var(--step-1);
  font-weight: 650;
  line-height: 1.25;
  letter-spacing: -0.01em;
}
p { margin: 0; max-width: 65ch; }
.lede { color: var(--ink-2); font-size: 1.125rem; }
.muted { color: var(--muted); }
.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* -------------------------------------------------------------- masthead */
.masthead {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px 24px;
  align-items: start;
}
.masthead .titles { display: flex; flex-direction: column; gap: 12px; }
.masthead .lede { max-width: 58ch; }

.icon-button {
  appearance: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--rule-strong);
  background: var(--glass-strong);
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: border-color 0.2s ease, background-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
}
.icon-button:hover { border-color: var(--gold); transform: rotate(-12deg); }
.icon-button svg { width: 20px; height: 20px; }

/* ----------------------------------------------------------- ticker tape */
.tape {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  border: 1px solid var(--rule);
  border-radius: 14px;
  background: var(--glass);
  -webkit-backdrop-filter: blur(14px) saturate(1.1);
  backdrop-filter: blur(14px) saturate(1.1);
  overflow: hidden;
}
.tape > div {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 16px;
  border-left: 1px solid var(--rule);
  margin-left: -1px;
}
.tape .value {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.tape .value .dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--up);
  margin-right: 7px;
  vertical-align: 1px;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--up) 22%, transparent);
}

/* ------------------------------------------------------------------ tabs */
.tabs {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  align-self: flex-start;
}
.tab {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--ink-2);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background-color 0.2s ease, color 0.2s ease;
}
.tab:hover { color: var(--ink); }
.tab[aria-selected="true"] { background: var(--ink); color: var(--page); }
.tab .count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  min-width: 1.6em;
  padding: 1px 6px;
  border-radius: 999px;
  background: var(--gold-soft);
  color: var(--gold-ink);
  text-align: center;
}
.tab[aria-selected="true"] .count { background: var(--gold); color: #221c12; }

.panel { display: flex; flex-direction: column; gap: 22px; }

/* ----------------------------------------------------------------- cards */
.card {
  position: relative;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--glass);
  -webkit-backdrop-filter: blur(18px) saturate(1.15);
  backdrop-filter: blur(18px) saturate(1.15);
  box-shadow: var(--shadow);
  padding: clamp(18px, 3vw, 30px);
  display: flex;
  flex-direction: column;
  gap: 16px;
  scroll-margin-top: 24px;
}
.card-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 16px; }
.card-head .meta { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid var(--rule-strong);
  color: var(--ink-2);
  white-space: nowrap;
}
.pill.live { border-color: color-mix(in srgb, var(--up) 45%, transparent); color: var(--up); }
.pill.gold { border-color: color-mix(in srgb, var(--gold) 55%, transparent); color: var(--gold-ink); }

/* Featured project (Current tab) */
.feature { gap: 22px; }
.feature h2 { font-size: clamp(2rem, 4.4vw, 2.9rem); font-weight: 800; letter-spacing: -0.03em; }
/* Four features: two columns that both fill, one column on phones. */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 32px;
  border-top: 1px solid var(--rule);
}
@media (max-width: 680px) { .feature-grid { grid-template-columns: 1fr; } }
.feature-grid > div {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}
.feature-grid p { font-size: 1rem; color: var(--ink-2); }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; }
.button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-radius: 999px;
  background: var(--gold);
  color: #221c12;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border: 1px solid color-mix(in srgb, #221c12 18%, var(--gold));
  box-shadow: 0 10px 24px -14px rgba(130, 96, 15, 0.8);
  transition: transform 0.15s ease, box-shadow 0.2s ease;
}
.button:hover { transform: translateY(-1px); box-shadow: 0 14px 30px -14px rgba(130, 96, 15, 0.9); text-decoration: none; }
.button.quiet {
  background: transparent;
  color: var(--ink);
  border-color: var(--rule-strong);
  box-shadow: none;
}
.button.quiet:hover { border-color: var(--gold); }
.note { font-family: var(--font-mono); font-size: 0.75rem; color: var(--muted); max-width: 48ch; }

/* Stats row (archived tracker) */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--gold-soft);
}
.stat .value { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; letter-spacing: -0.02em; }

/* Chart cards */
.chart-grid { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr); gap: 24px; align-items: start; }
@media (max-width: 860px) { .chart-grid { grid-template-columns: 1fr; } }
.chart { min-width: 0; border-radius: 12px; background: var(--glass-strong); border: 1px solid var(--rule); padding: 8px 6px 2px; }
.chart .plotly-graph-div { width: 100%; }
.summary { display: flex; flex-direction: column; gap: 12px; }
.summary .big { font-family: var(--font-display); font-size: 2.2rem; font-weight: 750; letter-spacing: -0.03em; line-height: 1; }
.summary .row { display: flex; justify-content: space-between; gap: 12px; }
.table-wrap { overflow-x: auto; }
table.data { border-collapse: collapse; width: 100%; font-size: 0.9rem; }
table.data th, table.data td { text-align: left; padding: 6px 10px 6px 0; border-bottom: 1px solid var(--rule); }
table.data th { font-family: var(--font-mono); font-size: 0.72rem; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
table.data td.num, table.data th.num { text-align: right; padding-right: 0; }
table.data tr.lead td { color: var(--ink); font-weight: 600; }
.s1 { background: var(--series-1); } .s2 { background: var(--series-2); } .s3 { background: var(--series-3); } .s4 { background: var(--series-4); }
.s5 { background: var(--series-5); } .s6 { background: var(--series-6); } .s7 { background: var(--series-7); } .s8 { background: var(--series-8); } .s-ink { background: var(--ink); }
.swatch { display: inline-block; width: 14px; height: 3px; border-radius: 2px; vertical-align: middle; margin-right: 8px; }
.up { color: var(--up); }
.down { color: var(--down); }
.signal { color: var(--gold-ink); font-weight: 600; }

/* ---------------------------------------------------------------- footer */
.footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-2);
}
.footer a { color: var(--ink); }

@media (max-width: 560px) {
  .masthead { grid-template-columns: 1fr auto; }
  .tabs { align-self: stretch; }
  .tab { flex: 1; justify-content: center; padding-inline: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
}