/* ===== BIG TECH CAPEX STYLES ===== */

/* ===== PAGE VARIABLES ===== */
:root {
  /* Page accent: infrastructure / capital / industrial */
  --cap-gold: #d4a742;
  --cap-gold-soft: #d4a74288;
  --cap-gold-dim: #d4a74230;
  --cap-gold-glow: #d4a74215;
  --cap-red: #ef5350;
  --cap-red-dim: #ef535030;
  /* Company colors */
  --co-amazon: #ff9900;
  --co-alphabet: #4285f4;
  --co-meta: #0668e1;
  --co-msft: #7fba00;
  --co-oracle: #f80000;
  --co-stargate: #c084fc;
  --co-amazon-dim: #ff990030;
  --co-alphabet-dim: #4285f430;
  --co-meta-dim: #0668e130;
  --co-msft-dim: #7fba0030;
  --co-oracle-dim: #f8000030;
  --accent-line: linear-gradient(90deg, var(--co-amazon), var(--co-alphabet), var(--co-meta), var(--co-msft), var(--co-oracle));
}

/* ===== ACCENT RULE OVERRIDE ===== */
.accent-rule {
  background: var(--accent-line);
}

/* ===== HERO OVERRIDES ===== */
.hero::before {
  background:
    radial-gradient(ellipse 50% 45% at 25% 45%, var(--co-amazon-dim), transparent),
    radial-gradient(ellipse 50% 45% at 75% 55%, var(--co-alphabet-dim), transparent),
    radial-gradient(ellipse 40% 40% at 50% 70%, var(--cap-gold-glow), transparent),
    radial-gradient(ellipse 80% 60% at 50% 80%, #0a0a1500, var(--bg-deep));
}
.hero-content { max-width: 900px; }
.hero-pub { font-size: 0.72rem; }
.hero-pub a { color: var(--cap-gold); text-decoration: none; }
.hero-pub a:hover { text-decoration: underline; }
.hero h1 { font-size: clamp(2.6rem, 6.5vw, 4.8rem); }
.hero h1 em {
  background: linear-gradient(135deg, var(--co-amazon), var(--cap-gold), var(--co-alphabet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: clamp(1.02rem, 2vw, 1.22rem);
  max-width: 680px;
}
.hero-meta { font-size: 0.78rem; letter-spacing: 0.08em; }

/* ===== HERO BADGE ===== */
.hero-badge {
  display: inline-block;
  font-family: var(--mono); font-size: 0.6rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  padding: 0.25rem 0.65rem; border-radius: 3px;
  background: var(--cap-gold-dim); color: var(--cap-gold);
  margin-bottom: 2rem;
}

/* ===== SCROLL HINT OVERRIDES ===== */
.scroll-hint { bottom: 3rem; }
.scroll-hint span { font-size: 0.65rem; }
.scroll-arrow { height: 30px; }

/* ===== TOC DOT OVERRIDE ===== */
.toc-dot.active { background: var(--cap-gold); box-shadow: 0 0 8px var(--cap-gold-dim); }

/* ===== HOME NAV HOVER OVERRIDE ===== */
.home-nav a:hover { color: var(--cap-gold); }

/* ===== BACK TO TOP HOVER OVERRIDE ===== */
.back-to-top:hover { border-color: var(--cap-gold); color: var(--cap-gold); }

/* ===== MAIN LAYOUT OVERRIDE ===== */
main { max-width: 1000px; }

/* ===== PULL QUOTE OVERRIDE ===== */
.pull-quote {
  border-left: 2px solid;
  border-image: var(--accent-line) 1;
}

/* ===== STAT CARDS ===== */
.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin: 2.5rem 0;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
}
.stat-card.amazon::before { background: var(--co-amazon); }
.stat-card.alphabet::before { background: var(--co-alphabet); }
.stat-card.meta::before { background: var(--co-meta); }
.stat-card.msft::before { background: var(--co-msft); }
.stat-card.oracle::before { background: var(--co-oracle); }
.stat-card.total::before { background: var(--accent-line); }
.stat-num {
  font-family: var(--mono);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.3rem;
}
.stat-card.amazon .stat-num { color: var(--co-amazon); }
.stat-card.alphabet .stat-num { color: var(--co-alphabet); }
.stat-card.meta .stat-num { color: var(--co-meta); }
.stat-card.msft .stat-num { color: var(--co-msft); }
.stat-card.oracle .stat-num { color: var(--co-oracle); }
.stat-card.total .stat-num { color: var(--cap-gold); }
.stat-label {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--text-tertiary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.stat-sub {
  font-family: var(--mono);
  font-size: 0.58rem;
  color: var(--text-tertiary);
  margin-top: 0.35rem;
  opacity: 0.7;
}

/* ===== BAR CHART ===== */
.bar-chart {
  margin: 2.5rem 0;
}
.bar-row {
  display: grid;
  grid-template-columns: 100px 1fr 60px;
  gap: 0.8rem;
  align-items: center;
  margin-bottom: 0.6rem;
}
.bar-company {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: right;
}
.bar-track {
  height: 28px;
  background: #ffffff06;
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}
.bar-fill {
  height: 100%;
  border-radius: 4px;
  width: 0;
  transition: width 1.4s cubic-bezier(0.22, 1, 0.36, 1);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0 10px;
}
.bar-fill.animated { /* width set via JS */ }
.bar-fill-2025 {
  position: absolute;
  top: 0; left: 0;
  height: 100%;
  border-radius: 4px;
  opacity: 0.2;
  transition: width 1.2s cubic-bezier(0.22, 1, 0.36, 1);
  width: 0;
}
.bar-val {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-align: left;
}
.bar-legend {
  display: flex;
  gap: 1.5rem;
  margin-top: 1rem;
  justify-content: center;
}
.bar-legend-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--text-tertiary);
}
.bar-legend-swatch {
  width: 12px;
  height: 8px;
  border-radius: 2px;
}

/* ===== TIMELINE ===== */
.timeline {
  position: relative;
  margin: 3rem 0;
  padding-left: 2rem;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--cap-gold-dim), var(--border), transparent);
}
.tl-item {
  position: relative;
  padding-bottom: 2rem;
}
.tl-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 0.4rem;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--cap-gold);
  border: 2px solid var(--bg-deep);
}
.tl-date {
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cap-gold);
  margin-bottom: 0.3rem;
}
.tl-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.tl-text strong { color: var(--text-primary); font-weight: 600; }

/* ===== COMPANY CARDS ===== */
.co-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 2.5rem 0;
}
.co-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  position: relative;
  overflow: hidden;
}
.co-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
}
.co-card.amazon::before { background: var(--co-amazon); }
.co-card.alphabet::before { background: var(--co-alphabet); }
.co-card.meta::before { background: var(--co-meta); }
.co-card.msft::before { background: var(--co-msft); }
.co-card-name {
  font-family: var(--sans);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.co-card.amazon .co-card-name { color: var(--co-amazon); }
.co-card.alphabet .co-card-name { color: var(--co-alphabet); }
.co-card.meta .co-card-name { color: var(--co-meta); }
.co-card.msft .co-card-name { color: var(--co-msft); }
.co-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.65;
  text-indent: 0;
}
.co-card .co-stat {
  font-family: var(--mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-hero);
  margin: 0.5rem 0;
}

/* ===== CALLOUT BOX ===== */
.callout {
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  margin: 2.5rem 0;
  position: relative;
}
.callout::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--co-stargate);
}
.callout-label {
  font-family: var(--mono);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--co-stargate);
  margin-bottom: 0.8rem;
}
.callout p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-indent: 0;
}
.callout p strong { color: var(--text-primary); }

/* ===== FOOTER OVERRIDES ===== */
footer { padding: 3rem 2rem; }
.footer-nav {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.footer-nav a {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text-tertiary);
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: color 0.2s;
}
.footer-nav a:hover { color: var(--text-primary); }
.footer-brand {
  font-family: var(--serif);
  font-size: 1.05rem;
  color: var(--text-hero);
  margin-bottom: 0.4rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 860px) {
  .stat-row { grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); }
  .co-cards { grid-template-columns: 1fr; }
  .bar-row { grid-template-columns: 70px 1fr 50px; }
  .bar-company { font-size: 0.62rem; }
}
@media (max-width: 560px) {
  .hero h1 { font-size: 2.2rem; }
  .stat-row { grid-template-columns: 1fr 1fr; }
  .bar-row { grid-template-columns: 55px 1fr 45px; }
  .bar-company { font-size: 0.55rem; }
  .bar-val { font-size: 0.6rem; }
}