/* ───────────────────────────────────────────────────────────
   Systematic Regime Trading
   Editorial trading-terminal theme (v2 — denser, colour-forward)
   Graphite ground · gold/jade/copper/steel/violet signal palette
   ─────────────────────────────────────────────────────────── */

:root {
  --color-bg: 10 11 13;
  --color-fg: 234 230 222;
  --color-paper: 20 20 23;
  --color-paper-2: 26 26 30;
  --color-ink: 12 12 14;

  /* Signal palette — calibrated for saturation on near-black */
  --color-accent: 200 162 85;    /* gold — primary highlight */
  --color-accent-soft: 170 140 78;
  --color-up: 98 175 123;        /* jade — positive / bullish */
  --color-down: 207 102 77;      /* copper — negative / drawdown */
  --color-warn: 230 168 96;      /* amber — caution */
  --color-blue: 104 148 190;     /* steel — neutral data */
  --color-violet: 155 130 200;   /* violet — tertiary */

  /* Per-section accent (overridden via data-theme) */
  --section-accent: var(--color-accent);

  --edge: 1px solid rgb(var(--color-fg) / 0.09);
  --hairline: rgb(var(--color-fg) / 0.14);

  --font-serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "kern", "liga", "calt", "tnum";
}

body {
  font-family: var(--font-sans);
  background: rgb(var(--color-bg));
  color: rgb(var(--color-fg));
  line-height: 1.6;
  font-size: 15px;
  overflow-x: hidden;
  background-image:
    radial-gradient(1100px 520px at 10% -8%, rgb(var(--color-accent) / 0.055), transparent 60%),
    radial-gradient(900px 520px at 95% 6%, rgb(var(--color-blue) / 0.045), transparent 62%),
    radial-gradient(800px 600px at 50% 110%, rgb(var(--color-violet) / 0.04), transparent 60%);
  background-attachment: fixed;
}

::selection {
  background: rgb(var(--color-accent) / 0.42);
  color: rgb(var(--color-bg));
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: rgb(var(--color-bg)); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(to bottom, rgb(var(--color-accent) / 0.5), rgb(var(--color-down) / 0.4));
}
::-webkit-scrollbar-thumb:hover { background: rgb(var(--color-accent) / 0.8); }

/* ───────────────────────────────────────────────────────────
   Layout
   ─────────────────────────────────────────────────────────── */

.editorial {
  max-width: 1340px;
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(20px, 4vw, 56px);
  padding-right: clamp(20px, 4vw, 56px);
}

/* Sections: tighter padding, tinted top divider per theme */
main.editorial > section {
  padding: clamp(36px, 5.5vh, 64px) 0;
  position: relative;
}

/* Coloured divider rail between sections — replaces the bland 1px border */
main.editorial > section + section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    to right,
    transparent 0%,
    rgb(var(--section-accent) / 0.55) 18%,
    rgb(var(--color-fg) / 0.18) 40%,
    rgb(var(--color-fg) / 0.18) 60%,
    rgb(var(--section-accent) / 0.55) 82%,
    transparent 100%
  );
}

/* A small floating glyph at the start of each section (except first) */
main.editorial > section + section::after {
  content: "";
  position: absolute;
  top: -4px;
  left: 20px;
  width: 8px;
  height: 8px;
  background: rgb(var(--section-accent));
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgb(var(--color-bg)), 0 0 0 4px rgb(var(--section-accent) / 0.45);
}

/* Asymmetric two-column layout: main copy + side annotations */
.section-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: start;
}

@media (min-width: 960px) {
  .section-grid {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 48px;
  }
  .section-grid.reverse {
    grid-template-columns: 280px minmax(0, 1fr);
  }
}

.side-note {
  position: relative;
  padding: 14px 16px 16px 18px;
  border-left: 2px solid rgb(var(--section-accent));
  background: linear-gradient(
    to right,
    rgb(var(--section-accent) / 0.06),
    rgb(var(--section-accent) / 0.015) 70%,
    transparent 100%
  );
  font-family: var(--font-sans);
  font-size: 13.5px;
  line-height: 1.55;
  color: rgb(var(--color-fg) / 0.78);
}

.side-note strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgb(var(--section-accent));
  margin-bottom: 8px;
  font-weight: 500;
}

/* ───────────────────────────────────────────────────────────
   Typography primitives
   ─────────────────────────────────────────────────────────── */

.display {
  font-family: var(--font-serif);
  font-weight: 300;
  letter-spacing: -0.022em;
  line-height: 0.94;
}

.italic-accent {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
}

.label {
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.4;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgb(var(--color-fg) / 0.55);
}

/* Section marker: chip-style with coloured ring + theme tag */
.section-marker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgb(var(--color-fg) / 0.72);
  margin-bottom: clamp(14px, 2vh, 22px);
  padding: 6px 14px 6px 10px;
  background: rgb(var(--section-accent) / 0.08);
  border: 1px solid rgb(var(--section-accent) / 0.28);
  border-left: 2px solid rgb(var(--section-accent));
  border-radius: 2px;
}

.section-marker::before {
  content: "";
  width: 7px;
  height: 7px;
  background: rgb(var(--section-accent));
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgb(var(--section-accent) / 0.18);
  flex-shrink: 0;
}

h2 {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(1.9rem, 4.2vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.022em;
  color: rgb(var(--color-fg));
  text-wrap: balance;
  max-width: 24ch;
  margin-bottom: clamp(14px, 2vh, 22px);
}

h2 em {
  font-style: italic;
  font-weight: 400;
  color: rgb(var(--section-accent));
}

h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
  margin: 1.5rem 0 0.6rem;
  color: rgb(var(--color-fg));
}

p {
  font-size: 1rem;
  line-height: 1.62;
  color: rgb(var(--color-fg) / 0.8);
  text-wrap: pretty;
  max-width: 64ch;
  margin-bottom: 0.9rem;
}

p.lead {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(1.08rem, 1.4vw, 1.26rem);
  line-height: 1.5;
  color: rgb(var(--color-fg) / 0.92);
  max-width: 58ch;
  margin-bottom: clamp(16px, 2.5vh, 24px);
}

p.lead em, p.lead b {
  color: rgb(var(--section-accent));
  font-style: italic;
  font-weight: 300;
}

a {
  color: rgb(var(--color-fg));
  text-decoration: none;
  border-bottom: 1px solid rgb(var(--color-accent) / 0.6);
  transition: border-color 0.25s, color 0.25s;
}

a:hover {
  color: rgb(var(--color-accent));
  border-color: rgb(var(--color-accent));
}

ul {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 1rem;
}

ul li {
  position: relative;
  padding: 6px 0 6px 26px;
  margin-bottom: 0.2rem;
  color: rgb(var(--color-fg) / 0.82);
  line-height: 1.5;
  border-bottom: 1px dashed rgb(var(--color-fg) / 0.06);
}

ul li:last-child { border-bottom: none; }

ul li::before {
  content: "▸";
  position: absolute;
  left: 6px;
  top: 5px;
  color: rgb(var(--section-accent));
  font-size: 11px;
}

ul li strong {
  color: rgb(var(--color-fg));
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: 0.92em;
  letter-spacing: 0.02em;
  background: rgb(var(--section-accent) / 0.08);
  padding: 1px 6px;
  border-radius: 2px;
  margin-right: 4px;
}

code, pre {
  font-family: var(--font-mono);
  font-size: 12.5px;
}

pre {
  background: rgb(var(--color-paper));
  border: var(--edge);
  border-left: 2px solid rgb(var(--color-accent) / 0.7);
  padding: 16px 20px;
  overflow-x: auto;
  margin: 1rem 0;
  line-height: 1.55;
  color: rgb(var(--color-fg) / 0.85);
  position: relative;
}

pre::before {
  content: "PYTHON";
  position: absolute;
  top: 0; right: 0;
  font-size: 9px;
  letter-spacing: 0.2em;
  color: rgb(var(--color-accent) / 0.7);
  background: rgb(var(--color-accent) / 0.08);
  padding: 4px 10px;
}

pre code { background: transparent; padding: 0; font-size: inherit; }

details {
  margin: 1rem 0;
  border-top: 1px solid rgb(var(--color-fg) / 0.12);
  border-bottom: 1px solid rgb(var(--color-fg) / 0.12);
  padding: 10px 0;
}

details summary {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgb(var(--color-fg) / 0.7);
  cursor: pointer;
  padding: 4px 0;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

details summary::before {
  content: "+";
  font-family: var(--font-mono);
  color: rgb(var(--color-accent));
  font-size: 14px;
  transition: transform 0.3s ease;
}

details[open] summary::before { content: "−"; }

details summary:hover { color: rgb(var(--color-accent)); }

/* ───────────────────────────────────────────────────────────
   Hero / masthead
   ─────────────────────────────────────────────────────────── */

.masthead {
  position: relative;
  min-height: auto;
  padding: clamp(36px, 5vh, 64px) 0 clamp(28px, 4vh, 48px);
  overflow: hidden;
  border-top: none;
}

.masthead .editorial { position: relative; z-index: 2; }

.masthead-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgb(var(--color-fg) / 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgb(var(--color-fg) / 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 72%);
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 72%);
  pointer-events: none;
}

.masthead-glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 120vw;
  height: 80vh;
  background:
    radial-gradient(ellipse 55% 45% at 35% 35%, rgb(var(--color-accent) / 0.14) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 72% 55%, rgb(var(--color-down) / 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 40% 50% at 55% 80%, rgb(var(--color-up) / 0.06) 0%, transparent 60%);
  pointer-events: none;
  filter: blur(6px);
}

/* Ticker strip across top of hero */
.ticker {
  position: relative;
  z-index: 3;
  border-top: 1px solid rgb(var(--color-accent) / 0.2);
  border-bottom: 1px solid rgb(var(--color-accent) / 0.2);
  background: linear-gradient(to bottom, rgb(var(--color-ink) / 0.9), rgb(var(--color-ink) / 0.55));
  overflow: hidden;
  margin-bottom: clamp(24px, 3.5vh, 40px);
}

.ticker-track {
  display: flex;
  gap: 48px;
  padding: 10px 0;
  white-space: nowrap;
  animation: ticker-scroll 50s linear infinite;
  width: max-content;
}

.ticker-item {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgb(var(--color-fg) / 0.72);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.ticker-item b {
  font-weight: 500;
  color: rgb(var(--color-fg));
  letter-spacing: 0.04em;
}

.ticker-item .t-up { color: rgb(var(--color-up)); }
.ticker-item .t-down { color: rgb(var(--color-down)); }
.ticker-item .t-gold { color: rgb(var(--color-accent)); }

.ticker-item::before {
  content: "◆";
  color: rgb(var(--color-accent) / 0.55);
  font-size: 8px;
}

@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.byline {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgb(var(--color-fg) / 0.6);
  margin-bottom: clamp(20px, 3vh, 32px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 0;
}

.byline-sep { color: rgb(var(--color-accent)); margin: 0 8px; }
.byline-item { color: inherit; margin: 0; }

@media (max-width: 640px) {
  .byline {
    font-size: 10px;
    letter-spacing: 0.12em;
  }
  .byline .byline-extra { display: none !important; }
}

.byline a {
  color: rgb(var(--color-fg) / 0.75);
  border: none;
}

.byline a:hover { color: rgb(var(--color-accent)); }

.title-block { margin-bottom: clamp(18px, 2.5vh, 28px); }

h1.display {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(2.4rem, 7vw, 5.8rem);
  line-height: 0.96;
  letter-spacing: -0.028em;
  color: rgb(var(--color-fg));
  text-wrap: balance;
}

h1.display .line {
  display: block;
  opacity: 0;
  transform: translateY(40px);
  filter: blur(6px);
  animation: rise 1.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

h1.display .line:nth-child(1) { animation-delay: 0.1s; }
h1.display .line:nth-child(2) { animation-delay: 0.25s; margin-top: -0.04em; }

h1.display em {
  font-style: italic;
  font-weight: 400;
  color: rgb(var(--color-accent));
}

@keyframes rise {
  0%   { opacity: 0; transform: translateY(40px); filter: blur(6px); }
  60%  { opacity: 1; filter: blur(0); }
  100% { opacity: 1; transform: translateY(0); filter: blur(0); }
}

/* Hero lower grid: tagline + hero chart stack */
.hero-lower {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vh, 36px);
  align-items: end;
}

@media (min-width: 900px) {
  .hero-lower { grid-template-columns: 1.15fr 1fr; gap: 56px; }
}

.tagline {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(1.05rem, 1.55vw, 1.4rem);
  line-height: 1.45;
  color: rgb(var(--color-fg) / 0.9);
  text-wrap: pretty;
  max-width: 52ch;
  margin-bottom: 14px;
}

.tagline em {
  color: rgb(var(--color-accent));
  font-style: italic;
}

.scroll-hint {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgb(var(--color-fg) / 0.65);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  padding: 8px 14px;
  background: rgb(var(--color-accent) / 0.06);
  border: 1px solid rgb(var(--color-accent) / 0.25);
  transition: color 0.3s, background 0.3s, border-color 0.3s;
  margin-top: 12px;
}

.scroll-hint:hover {
  color: rgb(var(--color-accent));
  background: rgb(var(--color-accent) / 0.12);
  border-color: rgb(var(--color-accent) / 0.6);
  border-bottom-color: rgb(var(--color-accent) / 0.6);
}
.scroll-hint .arrow { transition: transform 0.3s; }
.scroll-hint:hover .arrow { transform: translateY(3px); color: rgb(var(--color-accent)); }

/* Hero preview card — KPI panel on hero right */
.hero-preview {
  position: relative;
  background:
    linear-gradient(135deg, rgb(var(--color-paper)) 0%, rgb(var(--color-paper-2)) 100%);
  border: 1px solid rgb(var(--color-accent) / 0.22);
  padding: 20px 24px 22px;
  overflow: hidden;
  box-shadow: 0 0 0 1px rgb(var(--color-bg)), 0 20px 40px -20px rgb(0 0 0 / 0.6);
}

.hero-preview::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(to bottom,
    rgb(var(--color-accent)) 0%,
    rgb(var(--color-up)) 50%,
    rgb(var(--color-down)) 100%);
}

.hero-preview::after {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: 80px;
  height: 80px;
  background:
    radial-gradient(circle at top right, rgb(var(--color-accent) / 0.12), transparent 70%);
  pointer-events: none;
}

.hero-preview-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgb(var(--color-fg) / 0.6);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgb(var(--color-fg) / 0.1);
}

.hero-preview-head .live-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: rgb(var(--color-up));
  border-radius: 50%;
  margin-right: 7px;
  box-shadow: 0 0 0 3px rgb(var(--color-up) / 0.22);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 3px rgb(var(--color-up) / 0.22); }
  50%      { opacity: 0.6; box-shadow: 0 0 0 6px rgb(var(--color-up) / 0.06); }
}

.hero-preview-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 8px 0;
  border-bottom: 1px dashed rgb(var(--color-fg) / 0.08);
}

.hero-preview-row:last-child { border-bottom: none; }

.hero-preview-row .hp-label {
  font-family: var(--font-sans);
  font-size: 13px;
  color: rgb(var(--color-fg) / 0.72);
}

.hero-preview-row .hp-value {
  font-family: var(--font-mono);
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  color: rgb(var(--color-fg));
  font-weight: 500;
}

.hp-pos { color: rgb(var(--color-up)) !important; }
.hp-neg { color: rgb(var(--color-down)) !important; }
.hp-gold { color: rgb(var(--color-accent)) !important; }

.hp-delta {
  display: inline-block;
  margin-left: 6px;
  font-size: 10px;
  padding: 2px 5px;
  border-radius: 2px;
  letter-spacing: 0.02em;
  font-weight: 500;
}

.hp-delta.up {
  background: rgb(var(--color-up) / 0.2);
  color: rgb(var(--color-up));
}

.hp-delta.down {
  background: rgb(var(--color-down) / 0.2);
  color: rgb(var(--color-down));
}

/* ───────────────────────────────────────────────────────────
   Metric badges (hero key numbers)
   ─────────────────────────────────────────────────────────── */

.badges {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid rgb(var(--color-accent) / 0.35);
  border-bottom: 1px solid rgb(var(--color-accent) / 0.35);
  margin-top: clamp(24px, 3.5vh, 40px);
  background: linear-gradient(to bottom, rgb(var(--color-paper) / 0.35), rgb(var(--color-paper) / 0.15));
}

@media (min-width: 640px) {
  .badges { grid-template-columns: repeat(4, 1fr); }
}

.badge {
  padding: 20px 22px 18px;
  border-right: 1px solid rgb(var(--color-fg) / 0.1);
  border-top: 1px solid rgb(var(--color-fg) / 0.07);
  position: relative;
  overflow: hidden;
  transition: background 0.3s;
}

.badge:hover { background: rgb(var(--color-paper) / 0.35); }

.badge::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 28px;
  height: 2px;
  background: rgb(var(--color-accent));
  transition: width 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.badge:hover::before { width: 100%; }

.badge:nth-child(1)::before { background: rgb(var(--color-accent)); }
.badge:nth-child(2)::before { background: rgb(var(--color-down)); }
.badge:nth-child(3)::before { background: rgb(var(--color-up)); }
.badge:nth-child(4)::before { background: rgb(var(--color-blue)); }


@media (min-width: 640px) {
  .badge { border-top: none; }
  .badge:last-child { border-right: none; }
}

@media (max-width: 639px) {
  .badge:nth-child(2n) { border-right: none; }
}

.badge .value {
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 3.2vw, 2.2rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: rgb(var(--color-fg));
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.badge .label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgb(var(--color-fg) / 0.55);
  margin-top: 10px;
}

.badge .delta {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  padding: 2px 6px;
  margin-left: auto;
  border-radius: 2px;
  text-transform: none;
  font-weight: 500;
}

.badge .delta.up {
  background: rgb(var(--color-up) / 0.2);
  color: rgb(var(--color-up));
}

.badge .delta.down {
  background: rgb(var(--color-down) / 0.2);
  color: rgb(var(--color-down));
}

.badge .delta.neutral {
  background: rgb(var(--color-accent) / 0.2);
  color: rgb(var(--color-accent));
}

/* Badge sparkbar */
.badge .spark {
  margin-top: 10px;
  display: flex;
  gap: 2px;
  align-items: end;
  height: 18px;
}

.badge .spark span {
  flex: 1;
  background: rgb(var(--color-fg) / 0.15);
  border-radius: 1px;
}

.badge:nth-child(1) .spark span { background: rgb(var(--color-accent) / 0.3); }
.badge:nth-child(2) .spark span { background: rgb(var(--color-down) / 0.3); }
.badge:nth-child(3) .spark span { background: rgb(var(--color-up) / 0.3); }
.badge:nth-child(4) .spark span { background: rgb(var(--color-blue) / 0.3); }

.badge:nth-child(1) .spark span:nth-child(-n+4) { background: rgb(var(--color-accent)); }
.badge:nth-child(2) .spark span:nth-child(-n+5) { background: rgb(var(--color-down)); }
.badge:nth-child(3) .spark span:nth-child(-n+5) { background: rgb(var(--color-up)); }
.badge:nth-child(4) .spark span:nth-child(-n+3) { background: rgb(var(--color-blue)); }

/* ───────────────────────────────────────────────────────────
   Stat cards (in-section metrics) — stronger visual weight
   ─────────────────────────────────────────────────────────── */

.stat-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  margin: 22px 0;
  border-top: 1px solid rgb(var(--section-accent) / 0.35);
  border-bottom: 1px solid rgb(var(--section-accent) / 0.35);
  background: linear-gradient(to bottom, rgb(var(--color-paper) / 0.3), rgb(var(--color-paper) / 0.12));
}

@media (min-width: 640px) {
  .stat-row { grid-template-columns: repeat(4, 1fr); }
}

.stat-card {
  padding: 18px 20px 18px;
  border-right: 1px solid rgb(var(--color-fg) / 0.08);
  border-top: 1px solid rgb(var(--color-fg) / 0.06);
  position: relative;
  transition: background 0.3s;
  overflow: hidden;
}

.stat-card::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  background: rgb(var(--section-accent));
  transition: width 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.stat-card:hover {
  background: rgb(var(--color-paper) / 0.5);
}

.stat-card:hover::after { width: 100%; }

@media (min-width: 640px) {
  .stat-card { border-top: none; }
  .stat-card:last-child { border-right: none; }
}

@media (max-width: 639px) {
  .stat-card:nth-child(2n) { border-right: none; }
}

.stat-card .big {
  font-family: var(--font-mono);
  font-size: clamp(1.55rem, 2.8vw, 2.05rem);
  font-weight: 400;
  letter-spacing: -0.015em;
  font-variant-numeric: tabular-nums;
  color: rgb(var(--color-fg));
  line-height: 1.1;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.stat-card .big .arrow {
  font-size: 0.7em;
  opacity: 0.9;
}

.stat-card .desc {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgb(var(--color-fg) / 0.55);
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.stat-card .desc::before {
  content: "";
  width: 12px;
  height: 1px;
  background: rgb(var(--section-accent) / 0.7);
}

/* Visible data bar underneath each stat */
.stat-card .bar {
  margin-top: 10px;
  height: 3px;
  background: rgb(var(--color-fg) / 0.08);
  overflow: hidden;
  position: relative;
}

.stat-card .bar::after {
  content: "";
  position: absolute;
  top: 0; left: 0;
  height: 100%;
  width: var(--bar-w, 50%);
  background: currentColor;
  opacity: 0.7;
}

/* Directional coloring — high-specificity so utilities beat .stat-card .big */
.stat-card .big.negative-val,
.stat-card .big.negative,
.big.negative-val,
.big.negative,
.negative-val, .negative { color: rgb(var(--color-down)); }

.stat-card .big.positive,
.big.positive,
.positive { color: rgb(var(--color-up)); }

.stat-card .big.gold-val,
.big.gold-val,
.gold-val { color: rgb(var(--color-accent)); }

.stat-card .big.blue-val,
.big.blue-val,
.blue-val { color: rgb(var(--color-blue)); }

/* Chips — small coloured tags used inline */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 2px;
  background: rgb(var(--color-fg) / 0.08);
  color: rgb(var(--color-fg) / 0.85);
  border: 1px solid rgb(var(--color-fg) / 0.12);
}
.chip.gold  { background: rgb(var(--color-accent) / 0.14); color: rgb(var(--color-accent)); border-color: rgb(var(--color-accent) / 0.28); }
.chip.jade  { background: rgb(var(--color-up) / 0.14); color: rgb(var(--color-up)); border-color: rgb(var(--color-up) / 0.28); }
.chip.copper{ background: rgb(var(--color-down) / 0.14); color: rgb(var(--color-down)); border-color: rgb(var(--color-down) / 0.28); }
.chip.steel { background: rgb(var(--color-blue) / 0.14); color: rgb(var(--color-blue)); border-color: rgb(var(--color-blue) / 0.28); }
.chip.violet{ background: rgb(var(--color-violet) / 0.14); color: rgb(var(--color-violet)); border-color: rgb(var(--color-violet) / 0.28); }

/* ───────────────────────────────────────────────────────────
   Pipeline strip — more visual weight
   ─────────────────────────────────────────────────────────── */

.pipeline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 20px 0 26px;
  padding: 18px 20px;
  background:
    linear-gradient(to right,
      rgb(var(--color-accent) / 0.08) 0%,
      rgb(var(--color-paper) / 0.5) 25%,
      rgb(var(--color-paper) / 0.5) 75%,
      rgb(var(--color-blue) / 0.08) 100%);
  border: 1px solid rgb(var(--color-fg) / 0.1);
  border-left: 3px solid rgb(var(--color-accent));
  border-right: 3px solid rgb(var(--color-blue));
}

.pipeline-step {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgb(var(--color-fg) / 0.92);
  padding: 7px 13px;
  border: 1px solid rgb(var(--color-fg) / 0.16);
  background: rgb(var(--color-bg));
  transition: border-color 0.25s, color 0.25s, background 0.25s, transform 0.2s;
}

.pipeline-step:hover {
  border-color: rgb(var(--color-accent));
  color: rgb(var(--color-accent));
  transform: translateY(-1px);
}

.pipeline-arrow {
  font-family: var(--font-mono);
  color: rgb(var(--color-accent));
  font-size: 14px;
  user-select: none;
  font-weight: 500;
}

/* ───────────────────────────────────────────────────────────
   Charts — panel with coloured corner tag
   ─────────────────────────────────────────────────────────── */

.chart-container {
  margin: 22px 0 18px;
  position: relative;
  padding: 12px 12px 0;
  background: rgb(var(--color-paper) / 0.5);
  border: 1px solid rgb(var(--color-fg) / 0.08);
}

.chart-container::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 40px; height: 2px;
  background: rgb(var(--section-accent));
}

.chart-container::after {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 2px; height: 40px;
  background: rgb(var(--section-accent));
}

.chart-container img {
  display: block;
  width: 100%;
  height: auto;
  background: rgb(var(--color-paper));
}

.chart-caption {
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.55;
  color: rgb(var(--color-fg) / 0.72);
  margin: 10px 0 12px;
  padding: 10px 12px;
  background: rgb(var(--color-ink) / 0.5);
  border-left: 2px solid rgb(var(--section-accent));
  max-width: 72ch;
}

.chart-caption b, .chart-caption strong {
  color: rgb(var(--section-accent));
  font-weight: 500;
}

.chart-caption-inline {
  font-family: var(--font-sans);
  font-size: 13px;
  color: rgb(var(--color-fg) / 0.62);
  font-style: italic;
  margin: 10px 0 18px;
  max-width: 60ch;
}

.interactive-chart {
  width: 100%;
  height: 480px;
  background: rgb(var(--color-paper));
  border: var(--edge);
  margin-bottom: 8px;
}

@media (max-width: 640px) { .interactive-chart { height: 380px; } }

/* ───────────────────────────────────────────────────────────
   Tables — inline data bars behind numeric cells
   ─────────────────────────────────────────────────────────── */

.table-wrap {
  margin: 22px 0;
  overflow-x: auto;
  border-top: 1px solid rgb(var(--section-accent) / 0.4);
  border-bottom: 1px solid rgb(var(--section-accent) / 0.4);
  background:
    linear-gradient(to bottom,
      rgb(var(--color-paper) / 0.45),
      rgb(var(--color-paper) / 0.2));
}

table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

thead th {
  text-align: right;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgb(var(--color-fg) / 0.6);
  font-weight: 400;
  border-bottom: 1px solid rgb(var(--section-accent) / 0.45);
  background: rgb(var(--color-ink) / 0.55);
}

thead th:first-child { text-align: left; }

tbody td {
  padding: 11px 16px;
  text-align: right;
  border-bottom: 1px solid rgb(var(--color-fg) / 0.06);
  color: rgb(var(--color-fg) / 0.88);
  position: relative;
}

tbody td:first-child {
  text-align: left;
  font-family: var(--font-sans);
  font-weight: 500;
  color: rgb(var(--color-fg));
}

tbody tr { transition: background 0.2s; }
tbody tr:hover { background: rgb(var(--color-fg) / 0.035); }

tbody tr:last-child td { border-bottom: none; }

tbody tr.highlight td {
  background: linear-gradient(to right,
    rgb(var(--color-accent) / 0.12) 0%,
    rgb(var(--color-accent) / 0.04) 50%,
    transparent 100%);
  color: rgb(var(--color-fg));
}

tbody tr.highlight td:first-child {
  position: relative;
  padding-left: 26px;
}

tbody tr.highlight td:first-child::before {
  content: "★";
  position: absolute;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
  color: rgb(var(--color-accent));
  font-size: 10px;
}

tbody tr.highlight td:first-child::after {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 3px;
  height: 100%;
  background: rgb(var(--color-accent));
}

tbody td.positive { color: rgb(var(--color-up)); font-weight: 500; }
tbody td.negative { color: rgb(var(--color-down)); font-weight: 500; }
tbody td.gold-val { color: rgb(var(--color-accent)); font-weight: 500; }

/* ───────────────────────────────────────────────────────────
   Simulator
   ─────────────────────────────────────────────────────────── */

.sim-container {
  margin: 22px 0;
  padding: 24px clamp(20px, 3vw, 32px);
  background:
    linear-gradient(135deg,
      rgb(var(--color-paper)) 0%,
      rgb(var(--color-paper-2)) 100%);
  border: 1px solid rgb(var(--section-accent) / 0.3);
  border-left: 3px solid rgb(var(--section-accent));
  position: relative;
  overflow: hidden;
}

.sim-container::before {
  content: "INTERACTIVE";
  position: absolute;
  top: 0; right: 0;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  padding: 6px 12px;
  color: rgb(var(--section-accent));
  background: rgb(var(--section-accent) / 0.12);
  border-left: 1px solid rgb(var(--section-accent) / 0.4);
  border-bottom: 1px solid rgb(var(--section-accent) / 0.4);
  font-weight: 500;
}

.sim-container::after {
  content: "";
  position: absolute;
  bottom: 0; right: 0;
  width: 180px; height: 180px;
  background: radial-gradient(circle at bottom right, rgb(var(--section-accent) / 0.08), transparent 70%);
  pointer-events: none;
}

.sim-slider-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
}

.sim-slider-row label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgb(var(--color-fg) / 0.7);
}

.sim-slider-row input[type="range"] {
  flex: 1;
  min-width: 200px;
  height: 2px;
  -webkit-appearance: none;
  appearance: none;
  background: linear-gradient(to right,
    rgb(var(--color-up)) 0%,
    rgb(var(--color-accent)) 40%,
    rgb(var(--color-down)) 100%);
  outline: none;
  cursor: pointer;
}

.sim-slider-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  background: rgb(var(--color-accent));
  border: 2px solid rgb(var(--color-bg));
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 0 4px rgb(var(--color-accent) / 0.22);
  transition: transform 0.2s;
}

.sim-slider-row input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.sim-slider-row input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  background: rgb(var(--color-accent));
  border: 2px solid rgb(var(--color-bg));
  border-radius: 50%;
  cursor: pointer;
}

.sim-value {
  font-family: var(--font-mono);
  font-size: 14px;
  color: rgb(var(--color-accent));
  font-variant-numeric: tabular-nums;
  min-width: 80px;
  text-align: right;
  font-weight: 600;
  padding: 4px 10px;
  background: rgb(var(--color-accent) / 0.1);
  border: 1px solid rgb(var(--color-accent) / 0.3);
}

.sim-button {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  background: rgb(var(--section-accent) / 0.1);
  color: rgb(var(--section-accent));
  border: 1px solid rgb(var(--section-accent) / 0.5);
  padding: 10px 20px;
  cursor: pointer;
  transition: border-color 0.25s, color 0.25s, background 0.25s, transform 0.15s;
  font-weight: 500;
}

.sim-button:hover {
  border-color: rgb(var(--section-accent));
  background: rgb(var(--section-accent) / 0.2);
  color: rgb(var(--color-fg));
  transform: translateY(-1px);
}

.sim-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.sim-container .stat-row {
  margin: 0;
  border: none;
  background: transparent;
  position: relative;
  z-index: 1;
}

.sim-container .stat-card {
  border-top: 1px solid rgb(var(--color-fg) / 0.1);
  border-right: none;
  padding: 16px 0;
  background: transparent;
}

@media (min-width: 640px) {
  .sim-container .stat-card {
    border-right: 1px solid rgb(var(--color-fg) / 0.1);
    padding: 16px 20px;
  }
  .sim-container .stat-card:last-child { border-right: none; }
}

/* ───────────────────────────────────────────────────────────
   Footer
   ─────────────────────────────────────────────────────────── */

footer.colophon {
  padding: 44px 0 40px;
  border-top: 1px solid rgb(var(--color-accent) / 0.35);
  position: relative;
  background:
    linear-gradient(to bottom,
      rgb(var(--color-paper) / 0.4),
      rgb(var(--color-bg)));
}

footer.colophon::before {
  content: "";
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 2px;
  background: linear-gradient(to right,
    rgb(var(--color-accent)),
    rgb(var(--color-up)),
    rgb(var(--color-down)));
}

.colophon-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 18px;
  align-items: baseline;
}

.colophon-mark {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  font-size: 1.25rem;
  color: rgb(var(--color-fg) / 0.8);
}

.colophon-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgb(var(--color-fg) / 0.5);
}

.colophon-meta a {
  color: rgb(var(--color-fg) / 0.75);
  border-bottom: 1px solid rgb(var(--color-accent) / 0.55);
}

.colophon-meta a:hover { color: rgb(var(--color-accent)); }

/* ───────────────────────────────────────────────────────────
   Per-section accent themes (data-theme on each <section>)
   ─────────────────────────────────────────────────────────── */
[data-theme="gold"]   { --section-accent: var(--color-accent); }
[data-theme="jade"]   { --section-accent: var(--color-up); }
[data-theme="copper"] { --section-accent: var(--color-down); }
[data-theme="steel"]  { --section-accent: var(--color-blue); }
[data-theme="violet"] { --section-accent: var(--color-violet); }
[data-theme="amber"]  { --section-accent: var(--color-warn); }

/* ───────────────────────────────────────────────────────────
   Reveal on scroll
   ─────────────────────────────────────────────────────────── */

.reveal {
  opacity: 1;
  transform: none;
  transition:
    opacity 0.9s cubic-bezier(0.2, 0.8, 0.2, 1),
    transform 0.9s cubic-bezier(0.2, 0.8, 0.2, 1);
}

body.js .reveal {
  opacity: 0;
  transform: translateY(20px);
}

body.js .reveal.in {
  opacity: 1;
  transform: translateY(0);
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ───────────────────────────────────────────────────────────
   Reduced motion
   ─────────────────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}