@import url('https://fonts.googleapis.com/css2?family=Raleway:wght@100;200;300;400;500;600;700;800&family=Courier+Prime:ital,wght@0,400;0,700;1,400&display=swap');

:root {
  --absolute: #000000;
  --near-void: #030306;
  --ghost: #08080f;
  --shadow: #0d0d18;
  --dark-matter: rgba(80,60,180,0.06);
  --dm-border: rgba(80,60,180,0.12);
  --dark-energy: rgba(180,40,220,0.06);
  --de-border: rgba(180,40,220,0.12);
  --whisper: rgba(255,255,255,0.04);
  --faint: rgba(255,255,255,0.08);
  --pale: rgba(255,255,255,0.55);
  --bright: rgba(255,255,255,0.85);
  --dm-purple: #6040c0;
  --de-violet: #b028d8;
  --text: rgba(255,255,255,0.25);
  --text-mid: rgba(255,255,255,0.45);
  --text-bright: rgba(255,255,255,0.75);
  --border: rgba(255,255,255,0.06);
}

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

body {
  font-family: 'Raleway', sans-serif;
  background: var(--absolute);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

#dm-canvas { position: fixed; inset: 0; z-index: 0; pointer-events: none; }

.wrap {
  position: relative;
  z-index: 2;
  max-width: 1020px;
  margin: 0 auto;
  padding: 0 28px 100px;
}

/* ── HERO ── */
.hero {
  padding: 90px 0 72px;
  text-align: center;
  position: relative;
  border-bottom: 1px solid var(--border);
  margin-bottom: 70px;
}

.hero-kicker {
  font-size: 0.58rem;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: var(--dm-purple);
  opacity: 0.5;
  margin-bottom: 24px;
  font-weight: 300;
}

.hero h1 {
  font-size: clamp(2.8rem, 8vw, 6rem);
  font-weight: 100;
  line-height: 1.05;
  color: var(--bright);
  letter-spacing: -1px;
}

.hero h1 .amp {
  display: block;
  font-size: 0.4em;
  font-weight: 200;
  color: var(--text);
  letter-spacing: 4px;
  margin: 8px 0;
}

.hero h1 .de {
  display: block;
  font-weight: 100;
  color: rgba(180,40,220,0.6);
}

.hero-desc {
  max-width: 580px;
  margin: 32px auto 0;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--text);
  font-weight: 300;
  font-style: italic;
}

/* ── The great mystery ── */
.universe-pie {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 70px;
}

.pie-slice {
  padding: 28px 20px;
  text-align: center;
  position: relative;
  border-right: 1px solid var(--border);
  transition: background 0.3s;
}

.pie-slice:last-child { border-right: none; }

.pie-slice.matter { background: rgba(60,80,200,0.06); }
.pie-slice.dark-matter { background: rgba(60,40,150,0.1); }
.pie-slice.dark-energy { background: rgba(120,20,180,0.08); }

.pie-slice:hover.matter { background: rgba(60,80,200,0.12); }
.pie-slice:hover.dark-matter { background: rgba(60,40,150,0.18); }
.pie-slice:hover.dark-energy { background: rgba(120,20,180,0.14); }

.pie-pct {
  font-size: 3.5rem;
  font-weight: 100;
  line-height: 1;
  margin-bottom: 10px;
  display: block;
}

.pie-slice.matter .pie-pct { color: rgba(140,160,255,0.7); }
.pie-slice.dark-matter .pie-pct { color: rgba(120,80,255,0.8); }
.pie-slice.dark-energy .pie-pct { color: rgba(180,40,220,0.8); }

.pie-name {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.pie-slice.matter .pie-name { color: rgba(140,160,255,0.6); }
.pie-slice.dark-matter .pie-name { color: rgba(120,80,255,0.65); }
.pie-slice.dark-energy .pie-name { color: rgba(180,40,220,0.65); }

.pie-sub {
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--text);
  font-weight: 300;
}

/* ── Sections ── */
.section {
  margin-bottom: 64px;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.section.visible { opacity: 1; transform: none; }

.section-tag {
  font-family: 'Courier Prime', monospace;
  font-size: 0.62rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--dm-purple);
  opacity: 0.5;
  margin-bottom: 12px;
}

.section h2 {
  font-size: 1.6rem;
  font-weight: 200;
  color: var(--pale);
  margin-bottom: 24px;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 14px;
}

p {
  font-size: 0.96rem;
  line-height: 1.92;
  color: var(--text);
  font-weight: 300;
  margin-bottom: 14px;
}

strong { color: var(--text-mid); font-weight: 600; }

/* ── Evidence cards ── */
.evidence-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
  margin-top: 20px;
}

.ev-card {
  background: var(--whisper);
  border: 1px solid var(--border);
  padding: 20px;
  border-radius: 3px;
  transition: background 0.3s, border-color 0.3s;
}

.ev-card:hover {
  background: var(--dark-matter);
  border-color: var(--dm-border);
}

.ev-icon { font-size: 1.4rem; margin-bottom: 10px; opacity: 0.6; }

.ev-card h3 {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-mid);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 7px;
}

.ev-card p { font-size: 0.8rem; margin: 0; line-height: 1.6; }

/* ── Dark matter candidates ── */
.candidates {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin-top: 20px;
}

.cand {
  background: var(--whisper);
  border: 1px solid var(--border);
  border-left: 2px solid var(--dm-purple);
  padding: 18px;
  transition: border-left-color 0.3s, background 0.3s;
}

.cand:hover {
  background: var(--dark-matter);
  border-left-color: rgba(120,80,255,0.5);
}

.cand h3 {
  font-family: 'Courier Prime', monospace;
  font-size: 0.82rem;
  color: var(--text-bright);
  margin-bottom: 5px;
}

.cand .status {
  font-size: 0.6rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
  font-weight: 700;
}

.status.active { color: rgba(80,200,100,0.6); }
.status.excluded { color: rgba(255,80,60,0.5); }
.status.theoretical { color: rgba(180,140,255,0.55); }

.cand p { font-size: 0.78rem; margin: 0; line-height: 1.55; }

/* ── DE models ── */
.de-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 20px;
}

.de-card {
  background: var(--whisper);
  border: 1px solid var(--de-border);
  border-radius: 3px;
  padding: 20px;
  transition: background 0.3s;
}

.de-card:hover { background: var(--dark-energy); }

.de-card h3 {
  font-size: 0.82rem;
  font-weight: 600;
  color: rgba(180,40,220,0.7);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.de-card p { font-size: 0.82rem; margin: 0; line-height: 1.6; }

/* ── Tension box ── */
.tension-box {
  background: rgba(0,0,0,0);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 4px;
  padding: 28px;
  margin-top: 20px;
  position: relative;
}

.tension-box::before {
  content: '?';
  position: absolute;
  right: 24px;
  top: 16px;
  font-size: 5rem;
  font-weight: 100;
  color: rgba(255,255,255,0.03);
  font-family: 'Courier Prime', monospace;
}

.tension-box h3 {
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--text-mid);
  margin-bottom: 14px;
  letter-spacing: 1px;
}

.tension-box p { margin: 0 0 12px; }
.tension-box p:last-child { margin: 0; }

/* ── Experiments timeline ── */
.exp-list { margin-top: 20px; }

.exp-item {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.exp-item:last-child { border-bottom: none; }

.exp-name {
  font-family: 'Courier Prime', monospace;
  font-size: 0.72rem;
  color: var(--text-mid);
  font-weight: 700;
  padding-top: 2px;
}

.exp-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 3px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.exp-item p { font-size: 0.8rem; margin: 0; line-height: 1.5; }

/* ── Footer ── */
.footer-band {
  margin-top: 80px;
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-band span {
  font-size: 0.55rem;
  letter-spacing: 3px;
  color: rgba(255,255,255,0.12);
  text-transform: uppercase;
}

@media (max-width: 600px) {
  .universe-pie { grid-template-columns: 1fr; }
  .de-grid { grid-template-columns: 1fr; }
  .exp-item { grid-template-columns: 1fr; gap: 4px; }
}