:root {
  --bg: #07080b;
  --bg-elevated: #0e1116;
  --border: #1f242d;
  --text: #edeff2;
  --text-dim: #9aa1ac;
  --text-faint: #565d68;

  --aether: #45d8f0;
  --species: #7fe8bf;
  --techno: #c3ff5e;
  --ambient: #b48cf7;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 15% -10%, rgba(69, 216, 240, 0.06), transparent 40%),
    radial-gradient(circle at 85% 0%, rgba(180, 140, 247, 0.06), transparent 40%),
    var(--bg);
  color: var(--text);
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.home-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border);
}

.wordmark {
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.wordmark .dim {
  color: var(--text-faint);
}

.home-header nav a {
  text-decoration: none;
  color: var(--text-dim);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  border: 1px solid var(--border);
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  transition: border-color 0.2s, color 0.2s;
}

.home-header nav a:hover {
  border-color: var(--text-dim);
  color: var(--text);
}

.home-main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
}

.hero {
  margin-bottom: 3rem;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin: 0;
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--species);
  box-shadow: 0 0 8px var(--species);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

@media (max-width: 720px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

.card {
  --accent: var(--text-dim);
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 1.75rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  text-decoration: none;
  overflow: hidden;
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px -12px var(--accent);
}

.card-aether { --accent: var(--aether); }
.card-species { --accent: var(--species); }
.card-techno { --accent: var(--techno); }
.card-ambient { --accent: var(--ambient); }

.card-visual {
  height: 110px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.card-tag {
  margin: 0 0 0.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.card h2 {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
  letter-spacing: 0.03em;
}

.card-sub {
  margin: 0;
  font-size: 0.82rem;
  color: var(--text-dim);
}

.card-enter {
  margin-top: 1.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--text-faint);
  transition: color 0.2s;
}

.card:hover .card-enter {
  color: var(--accent);
}

/* --- motifs --- */

.motif {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.ring {
  fill: none;
  stroke: var(--accent);
  stroke-opacity: 0.35;
  stroke-width: 1;
}

.sat {
  fill: var(--accent);
  filter: drop-shadow(0 0 4px var(--accent));
}

.core {
  fill: var(--text-dim);
}

.motif-species {
  transform-box: fill-box;
  transform-origin: center;
  animation: spin-slow 22s linear infinite;
}

@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.globe-outline {
  fill: none;
  stroke: var(--accent);
  stroke-opacity: 0.6;
  stroke-width: 1.2;
}

.lat, .lon {
  fill: none;
  stroke: var(--accent);
  stroke-opacity: 0.3;
  stroke-width: 1;
}

.knob-track {
  fill: none;
  stroke: var(--border);
  stroke-width: 4;
}

.knob-arc {
  fill: none;
  stroke: var(--accent);
  stroke-width: 4;
  stroke-linecap: round;
  filter: drop-shadow(0 0 3px var(--accent));
  animation: knob-breathe 3.2s ease-in-out infinite;
}

.knob-arc-2 { animation-delay: 0.4s; }
.knob-arc-3 { animation-delay: 0.8s; }

@keyframes knob-breathe {
  0%, 100% { opacity: 0.65; }
  50% { opacity: 1; }
}

.motif-ambient {
  position: relative;
}

.blob {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  opacity: 0.55;
  animation: breathe 6s ease-in-out infinite;
}

.blob-a {
  background: radial-gradient(circle, var(--ambient) 0%, transparent 70%);
  transform: translate(-68%, -50%);
}

.blob-b {
  background: radial-gradient(circle, var(--species) 0%, transparent 70%);
  transform: translate(-32%, -50%);
  animation-delay: 2s;
}

@keyframes breathe {
  0%, 100% { transform: translate(-68%, -50%) scale(1); opacity: 0.5; }
  50% { transform: translate(-62%, -55%) scale(1.2); opacity: 0.7; }
}

.blob-b {
  animation-name: breathe-b;
}

@keyframes breathe-b {
  0%, 100% { transform: translate(-32%, -50%) scale(1); opacity: 0.5; }
  50% { transform: translate(-38%, -45%) scale(1.2); opacity: 0.7; }
}