/* Gold Quant Lab - prile.us. [M30/M31]
 *
 * The approved visual direction (docs/design/README.md): compact, premium, data-dense, minimal
 * chrome, colour used only for meaning - green profit, red loss and drawdown, amber caution.
 * Gold is the single accent and is used for identity, never for a value. English throughout;
 * Roman Urdu appears only inside a trade explanation card.
 *
 * Contrast: every text colour here is checked against its own surface at 4.5:1 or better.
 */

:root {
  --bg: #0b0d10;
  --surface: #121519;
  --surface-2: #171b21;
  --surface-3: #1e232b;
  --line: #272d37;
  --line-soft: #1d222a;
  --text: #e9ecf2;
  --text-dim: #b3bbc9;
  --text-faint: #949cab;
  --gold: #e0bc57;
  --gold-dim: #9a8034;
  --up: #4bcf8b;
  --down: #ff6b70;
  --amber: #f5b544;
  --blue: #74aee6;
  --radius: 10px;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "JetBrains Mono", Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --wrap: 1240px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Links inside running text are underlined, not merely coloured: colour alone fails WCAG 1.4.1
   for readers who cannot distinguish it. Navigation, buttons and card links are unambiguous
   from their surroundings, so those opt out. */
a { color: var(--blue); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: .17em; }
a:hover { text-decoration-thickness: 2px; }
.site-nav a, .app-nav a, .crumbs a, .brand, .btn, .link-grid a, .foot-links a, .skip { text-decoration: none; }
.site-nav a:hover, .app-nav a:hover, .crumbs a:hover, .foot-links a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; border-radius: 3px; }
[hidden] { display: none !important; }
img, svg { max-width: 100%; height: auto; }

h1, h2, h3 { line-height: 1.25; letter-spacing: -0.015em; margin: 0 0 .5em; }
h1 { font-size: clamp(1.6rem, 1.15rem + 1.7vw, 2.3rem); font-weight: 650; }
h2 { font-size: 1.22rem; font-weight: 620; }
h3 { font-size: 1.02rem; font-weight: 620; margin-top: 1.6em; }
p { margin: 0 0 1em; }
code { font-family: var(--mono); font-size: .92em; background: var(--surface-2); padding: 1px 5px; border-radius: 4px; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--gold); color: #14100a; padding: 10px 16px; font-weight: 600;
}
.skip:focus { left: 8px; top: 8px; }

/* ------------------------------------------------------------------ header */

.site-head {
  border-bottom: 1px solid var(--line-soft);
  background: rgba(11, 13, 16, .9);
  backdrop-filter: blur(10px);
  position: sticky; top: 0; z-index: 30;
}
.head-inner { display: flex; align-items: center; gap: 16px; min-height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 32px; height: 32px; flex: none;
  display: grid; place-items: center;
  border: 1px solid var(--gold-dim); border-radius: 8px;
  color: var(--gold); font: 600 11px/1 var(--mono); letter-spacing: .04em;
}
.brand-text { font-weight: 640; font-size: .95rem; white-space: nowrap; }

.site-nav { margin-left: auto; }
.site-nav ul { display: flex; gap: 2px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
.site-nav a {
  display: block; padding: 7px 11px; border-radius: 7px;
  color: var(--text-dim); font-size: .875rem; text-decoration: none;
}
.site-nav a:hover { background: var(--surface-2); color: var(--text); text-decoration: none; }
.site-nav a[aria-current="page"] { background: var(--surface-3); color: var(--text); }

.mode-badge {
  padding: 4px 9px; border: 1px solid var(--gold-dim); border-radius: 5px;
  color: var(--gold); font: 600 10px/1.4 var(--mono); letter-spacing: .09em; flex: none;
}
.menu {
  display: none; margin-left: auto; background: var(--surface-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 7px; padding: 7px 12px;
  font: 500 .85rem var(--sans); cursor: pointer;
}

/* -------------------------------------------------------------- breadcrumbs */

.crumbs { padding-top: 14px; }
.crumbs ol { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; margin: 0; padding: 0; font-size: .82rem; }
.crumbs li + li::before { content: "/"; color: var(--text-faint); margin-right: 6px; }
.crumbs a { color: var(--text-faint); }
.crumbs [aria-current] { color: var(--text-dim); }

/* -------------------------------------------------------------------- main */

main { padding: 26px 20px 70px; }
.lede { font-size: 1.06rem; color: var(--text-dim); max-width: 72ch; }

.hero { padding: 14px 0 26px; }
.hero h1 { max-width: 20ch; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }

.btn {
  display: inline-block; padding: 10px 18px; border-radius: 8px;
  background: var(--gold); color: #17130a; font-weight: 620; font-size: .9rem;
  border: 1px solid var(--gold); cursor: pointer; text-decoration: none;
}
.btn:hover { background: #edcb6c; text-decoration: none; }
.btn.ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn.ghost:hover { background: var(--surface-2); }

/* ------------------------------------------------------------------- cards */

.cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 10px; margin: 0 0 20px;
}
.card {
  background: var(--surface); border: 1px solid var(--line-soft);
  border-radius: var(--radius); padding: 13px 15px 14px; min-width: 0;
}
.card .label {
  font: 600 10.5px/1 var(--mono); letter-spacing: .09em; color: var(--text-faint);
  text-transform: uppercase; margin: 0 0 9px;
}
.card .value { font: 640 1.42rem/1.15 var(--mono); letter-spacing: -.02em; margin: 0; }
.card .sub { font-size: .78rem; color: var(--text-faint); margin: 5px 0 0; }

/* ------------------------------------------------------------------ panels */

.panel {
  background: var(--surface); border: 1px solid var(--line-soft);
  border-radius: var(--radius); margin: 0 0 16px; overflow: hidden; min-width: 0;
}
.panel-head {
  display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap;
  padding: 13px 17px; border-bottom: 1px solid var(--line-soft); background: var(--surface-2);
}
.panel-head h2, .panel-head h3 { margin: 0; font-size: 1rem; }
.panel-head .hint { margin-left: auto; color: var(--text-faint); font-size: .78rem; }
.panel-body { padding: 16px 17px; }
.panel-body > :last-child { margin-bottom: 0; }

.grid-halves { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 16px; align-items: start; }

.link-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 10px; }
.link-grid a {
  display: block; padding: 14px 16px; background: var(--surface-2);
  border: 1px solid var(--line-soft); border-radius: 9px; color: var(--text); text-decoration: none;
}
.link-grid a:hover { border-color: var(--gold-dim); text-decoration: none; }
.link-grid h3 { margin: 0 0 4px; font-size: .95rem; }
.link-grid p { margin: 0; font-size: .84rem; color: var(--text-faint); }

/* ------------------------------------------------------------------ colour */

.up { color: var(--up); }
.down { color: var(--down); }
.dim { color: var(--text-faint); }
.mono { font-family: var(--mono); }
.nowrap { white-space: nowrap; }

.tag {
  display: inline-block; padding: 2px 8px; border-radius: 4px;
  font: 600 10.5px/1.7 var(--mono); letter-spacing: .05em;
  border: 1px solid var(--line); color: var(--text-dim); white-space: nowrap;
}
.tag.sell { color: var(--down); border-color: rgba(255,107,112,.36); }
.tag.buy { color: var(--up); border-color: rgba(75,207,139,.36); }
.tag.open { color: var(--blue); border-color: rgba(116,174,230,.36); }
.tag.valid { color: var(--up); border-color: rgba(75,207,139,.36); }
.tag.rejected { color: var(--amber); border-color: rgba(245,181,68,.34); }
.tag.gold { color: var(--gold); border-color: var(--gold-dim); }

.notice {
  background: var(--surface-2); border: 1px solid var(--line);
  border-left: 3px solid var(--line); border-radius: 8px;
  padding: 12px 15px; color: var(--text-dim); font-size: .88rem; margin: 0 0 14px;
}
.notice.warn { border-left-color: var(--amber); }
.notice.info { border-left-color: var(--blue); }

.ticks { padding-left: 1.1em; margin: 0 0 1em; }
.ticks li { margin-bottom: .5em; color: var(--text-dim); }
.stages { padding-left: 1.2em; }
.stages li { margin-bottom: .55em; color: var(--text-dim); }

/* ------------------------------------------------------------------ tables */

.table-wrap { overflow-x: auto; max-width: 100%; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; font-size: .84rem; }
caption { text-align: left; }
th {
  text-align: left; padding: 9px 13px; font: 600 10.5px/1.3 var(--mono);
  letter-spacing: .08em; text-transform: uppercase; color: var(--text-faint);
  border-bottom: 1px solid var(--line); white-space: nowrap; background: var(--surface-2);
}
tbody th { text-transform: none; font-size: .82rem; letter-spacing: 0; color: var(--text-dim); background: none; font-family: var(--sans); }
td { padding: 10px 13px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
tbody tr:last-child td, tbody tr:last-child th { border-bottom: 0; }
tbody tr:hover { background: var(--surface-2); }
td.num, th.num { text-align: right; font-family: var(--mono); white-space: nowrap; }
.reason { color: var(--text-dim); max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------------------------------------------------------------- key/value */

.kv { display: grid; grid-template-columns: minmax(140px, max-content) 1fr; gap: 8px 20px; margin: 0 0 1em; font-size: .88rem; }
.kv dt { color: var(--text-faint); }
.kv dd { margin: 0; font-family: var(--mono); word-break: break-word; }

/* ------------------------------------------------------------- trade detail */

.explain {
  background: linear-gradient(180deg, rgba(224,188,87,.07), rgba(224,188,87,.02));
  border: 1px solid rgba(224,188,87,.22); border-radius: 9px; padding: 15px 17px; margin-bottom: 16px;
}
.explain .why { font-size: 1.02rem; margin: 0 0 8px; }
.explain .urdu {
  color: var(--text-dim); font-size: .87rem; font-style: italic; margin: 10px 0 0;
  padding-top: 10px; border-top: 1px solid rgba(224,188,87,.16);
}

.gates { list-style: none; margin: 0; padding: 0; }
.gate-row {
  display: grid; grid-template-columns: 18px minmax(120px, 190px) 1fr; gap: 10px;
  align-items: baseline; font-size: .82rem; padding: 7px 0; border-bottom: 1px solid var(--line-soft);
}
.gate-row:last-child { border-bottom: 0; }
.gate-row .mark.pass { color: var(--up); }
.gate-row .mark.fail { color: var(--down); }
.gate-row .gname { font-family: var(--mono); color: var(--text-dim); }
.gate-row .gdet { color: var(--text-faint); font-family: var(--mono); }

.timeline { list-style: none; position: relative; padding: 0 0 0 22px; margin: 0; }
.timeline::before { content: ""; position: absolute; left: 4px; top: 8px; bottom: 8px; width: 1px; background: var(--line); }
.tl-item { position: relative; padding-bottom: 18px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ""; position: absolute; left: -22px; top: 7px; width: 9px; height: 9px;
  border-radius: 50%; background: var(--surface); border: 2px solid var(--line);
}
.tl-item.locked::before { border-color: var(--up); }
.tl-item.exit::before { border-color: var(--gold); }
.tl-head { display: flex; align-items: baseline; gap: 9px; flex-wrap: wrap; margin: 0 0 3px; font-size: .9rem; }
.tl-meta { color: var(--text-faint); font: 400 .8rem var(--mono); }
.tl-body { color: var(--text-dim); font-size: .85rem; margin: 0 0 2px; }
.retention-bar { height: 6px; border-radius: 3px; background: var(--surface-3); overflow: hidden; margin-top: 8px; max-width: 320px; }
.retention-bar span { display: block; height: 100%; background: var(--up); }

/* ---------------------------------------------------------------- baskets */

.basket { background: var(--surface); border: 1px solid var(--line-soft); border-radius: var(--radius); margin-bottom: 10px; }
.basket summary { padding: 13px 16px; cursor: pointer; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.basket summary::-webkit-details-marker { display: none; }
.basket summary::before { content: "▶"; color: var(--text-faint); font-size: .65rem; }
.basket[open] summary::before { content: "▼"; }
.sum-stats { margin-left: auto; display: flex; gap: 16px; font: 500 .82rem var(--mono); color: var(--text-dim); flex-wrap: wrap; }
.basket-body { padding: 0 16px 16px; }

/* ------------------------------------------------------------------- prose */

.prose { max-width: 74ch; }
.prose h2 { margin-top: 1.9em; }
.prose p, .prose li { color: var(--text-dim); }
.prose strong { color: var(--text); }

/* -------------------------------------------------------------------- auth */

.auth-wrap { display: grid; place-items: center; min-height: 60vh; padding: 20px 0; }
.auth-card {
  width: 100%; max-width: 400px; background: var(--surface);
  border: 1px solid var(--line); border-radius: 14px; padding: 30px 28px;
}
.auth-card h1 { font-size: 1.35rem; margin-bottom: .25em; }
.auth-sub { color: var(--text-faint); font-size: .88rem; margin-bottom: 22px; }
.auth-card label { display: block; font-size: .82rem; color: var(--text-dim); margin-bottom: 6px; font-weight: 550; }
.auth-card input[type="tel"], .auth-card input[type="password"] {
  width: 100%; padding: 11px 13px; background: var(--bg); border: 1px solid var(--line);
  border-radius: 8px; color: var(--text); font-size: 1rem; margin-bottom: 4px;
}
.auth-card input:focus { outline: none; border-color: var(--gold-dim); box-shadow: 0 0 0 2px rgba(224,188,87,.14); }
.auth-card button[type="submit"] {
  width: 100%; padding: 12px; margin-top: 14px; background: var(--gold); color: #17130a;
  border: 0; border-radius: 8px; font: 640 .95rem var(--sans); cursor: pointer;
}
.auth-card button[type="submit"]:hover { background: #edcb6c; }
.field-help { font-size: .76rem; color: var(--text-faint); margin: 0 0 16px; }
.auth-error {
  background: rgba(255,107,112,.1); border: 1px solid rgba(255,107,112,.32);
  color: var(--down); border-radius: 8px; padding: 10px 13px; font-size: .85rem; margin-bottom: 16px;
}
.auth-alt { font-size: .85rem; color: var(--text-faint); margin: 16px 0 0; text-align: center; }
.auth-note { font-size: .76rem; color: var(--text-faint); margin: 18px 0 0; padding-top: 16px; border-top: 1px solid var(--line-soft); }

.toggle { display: flex; gap: 12px; align-items: flex-start; padding: 12px 0; border-bottom: 1px solid var(--line-soft); }
.toggle input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--gold); flex: none; }
.toggle label { font-size: .92rem; color: var(--text); font-weight: 550; display: block; margin-bottom: 2px; }
.toggle .field-help { margin: 0; }
.toggle.danger label { color: var(--down); }
form.panel button[type="submit"] {
  margin-top: 18px; padding: 10px 20px; background: var(--gold); color: #17130a;
  border: 0; border-radius: 8px; font: 640 .9rem var(--sans); cursor: pointer;
}

/* ------------------------------------------------------------------ footer */

.site-foot { border-top: 1px solid var(--line-soft); background: #0e1114; padding: 34px 0 20px; margin-top: 40px; }
.foot-inner { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 26px; }
.foot-about p { font-size: .82rem; color: var(--text-faint); margin: 0 0 10px; }
.foot-brand { font-weight: 620; color: var(--text) !important; font-size: .95rem !important; }
.disclaimer { color: var(--text-faint); }
.foot-links h2 { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--text-faint); font-family: var(--mono); }
.foot-links ul { list-style: none; margin: 0; padding: 0; }
.foot-links li { margin-bottom: 7px; }
.foot-links a { font-size: .85rem; color: var(--text-dim); }
.foot-bottom { border-top: 1px solid var(--line-soft); margin-top: 26px; padding-top: 16px; }
.foot-bottom p { font-size: .78rem; color: var(--text-faint); margin: 0; }

/* --------------------------------------------------------------- app nav */

.app-nav { margin: 0 0 22px; border-bottom: 1px solid var(--line-soft); }
.app-nav ul { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; overflow-x: auto; }
.app-nav a { display: block; padding: 9px 14px; color: var(--text-faint); font-size: .88rem; border-bottom: 2px solid transparent; white-space: nowrap; }
.app-nav a:hover { color: var(--text); text-decoration: none; }
.app-nav a[aria-current="page"] { color: var(--gold); border-bottom-color: var(--gold); }

/* -------------------------------------------------------------- freshness */

.freshness {
  display: inline-flex; align-items: center; gap: 7px; font-size: .76rem;
  color: var(--text-faint); font-family: var(--mono);
}
.freshness .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--up); flex: none; }
.freshness.delayed { color: var(--amber); }
.freshness.delayed .dot { background: var(--amber); }
.freshness.stale { color: var(--down); }
.freshness.stale .dot { background: var(--down); }
.flash { animation: flash .9s ease-out; }
@keyframes flash { from { background: rgba(224,188,87,.22); } to { background: transparent; } }

/* ------------------------------------------------------------ responsive */

@media (max-width: 980px) {
  .foot-inner { grid-template-columns: 1fr 1fr; }
  .grid-halves { grid-template-columns: 1fr; }
}

@media (max-width: 780px) {
  .menu { display: block; }
  .site-nav { display: none; width: 100%; order: 3; }
  .site-nav.open { display: block; padding-bottom: 12px; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav a { padding: 10px 12px; }
  .head-inner { flex-wrap: wrap; }
  .mode-badge { order: 2; }
  main { padding: 18px 16px 60px; }
  .wrap { padding: 0 16px; }
  .cards { grid-template-columns: repeat(auto-fit, minmax(142px, 1fr)); gap: 8px; }
  .card .value { font-size: 1.2rem; }
  .kv { grid-template-columns: 1fr; gap: 2px; }
  .kv dt { margin-top: 10px; font-size: .78rem; }
  .gate-row { grid-template-columns: 18px 1fr; }
  .gate-row .gdet { grid-column: 2; }
  .reason { max-width: 200px; }
  .foot-inner { grid-template-columns: 1fr; gap: 20px; }
  .sum-stats { margin-left: 0; width: 100%; gap: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ------------------------------------------------------------- dashboard */

.dash-head { display: flex; align-items: flex-start; gap: 20px; flex-wrap: wrap; margin-bottom: 18px; }
.cards.tight { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); margin-bottom: 16px; }
.panel-body.flush { padding: 0; }

.period-bar { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin: 4px 0 16px; }
.period-bar button {
  padding: 8px 15px; background: var(--surface); border: 1px solid var(--line);
  border-radius: 8px; color: var(--text-dim); font: 550 .85rem var(--sans); cursor: pointer;
}
.period-bar button:hover { background: var(--surface-2); color: var(--text); }
.period-bar button.on { background: var(--gold); border-color: var(--gold); color: #17130a; }
.period-note { margin-left: auto; font-size: .76rem; color: var(--text-faint); font-family: var(--mono); }

.grid-2-1 { display: grid; grid-template-columns: minmax(0, 1.85fr) minmax(0, 1fr); gap: 16px; align-items: start; }

/* the chart */
.chart { margin: 0; position: relative; }
.eqchart { width: 100%; height: 280px; display: block; }
.eqchart .ax { fill: var(--text-faint); font: 10px var(--mono); }
.chart .tip {
  position: absolute; top: 8px; pointer-events: none;
  background: var(--surface-3); border: 1px solid var(--line); border-radius: 8px;
  padding: 9px 12px; font: 11.5px/1.6 var(--mono); color: var(--text-dim);
  min-width: 180px; box-shadow: 0 6px 20px rgba(0,0,0,.45);
}
.chart .tip strong { display: block; color: var(--text); margin-bottom: 4px; font-size: 11px; }
.chart .tip span { display: flex; justify-content: space-between; gap: 14px; }
.chart .tip b { color: var(--text); font-weight: 600; }
.chart-toggle { margin-left: auto; display: flex; gap: 4px; flex-wrap: wrap; }
.chart-toggle button {
  padding: 5px 10px; background: transparent; border: 1px solid var(--line);
  border-radius: 6px; color: var(--text-faint); font: 500 .74rem var(--sans); cursor: pointer;
}
.chart-toggle button.on { background: var(--surface-3); color: var(--text); border-color: var(--line); }

/* comparisons */
.cmp-title { font-size: .82rem; text-transform: uppercase; letter-spacing: .07em;
  color: var(--text-faint); font-family: var(--mono); margin: 0 0 8px; }
.cmp-title + .cmp { margin-bottom: 22px; }
table.cmp th[scope="row"] { color: var(--text-dim); }
table.cmp td { padding: 7px 10px; }

/* daily table: the day's tone is carried by a leading bar, not by a wash of colour over the
   numbers, so the figures stay readable and colour is not the only signal. */
table.daily tbody th[scope="row"] { border-left: 3px solid var(--line); padding-left: 12px; }
table.daily tr.win th[scope="row"] { border-left-color: var(--up); }
table.daily tr.loss th[scope="row"] { border-left-color: var(--down); }
table.daily tr.flat th[scope="row"] { border-left-color: var(--text-faint); }

@media (max-width: 980px) {
  .grid-2-1 { grid-template-columns: 1fr; }
  .period-note { margin-left: 0; width: 100%; }
}