/* ===== v7 · milky-way flow · system cursor · perf light ===== */
:root {
  --bg: #05040c;
  --bg2: #0e0b1a;
  --text: #f4f0ff;
  --muted: #a89bc8;
  --neon: #c084fc;
  --neon2: #67e8f9;
  --neon3: #f472b6;
  --glass: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.12);
  --radius: 20px;
  --font: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --display: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  font-family: var(--font);
  color: var(--text);
  background: #05040c;
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
strong { font-weight: 700; }

.galaxy {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  background:
    radial-gradient(1200px 800px at 12% -8%, rgba(88, 28, 135, 0.5) 0%, transparent 58%),
    radial-gradient(900px 700px at 88% 12%, rgba(8, 90, 110, 0.38) 0%, transparent 52%),
    radial-gradient(720px 520px at 48% 105%, rgba(124, 58, 237, 0.22) 0%, transparent 58%),
    radial-gradient(600px 400px at 60% 40%, rgba(56, 20, 90, 0.25) 0%, transparent 60%),
    #05040c;
}

.nebula {
  position: absolute;
  border-radius: 50%;
  /* soft edge via large radial stop — avoid heavy blur filter */
  opacity: 0.42;
  mix-blend-mode: screen;
  animation: nebulaDrift 36s ease-in-out infinite alternate;
  will-change: transform;
  contain: layout paint;
}
.n1 {
  width: 54vmax; height: 38vmax;
  left: -12%; top: -8%;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.5), transparent 68%);
}
.n2 {
  width: 44vmax; height: 34vmax;
  right: -16%; top: 22%;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.36), transparent 68%);
  animation-duration: 44s;
  animation-delay: -6s;
}
.n3 {
  width: 48vmax; height: 38vmax;
  left: 18%; bottom: -22%;
  background: radial-gradient(circle, rgba(244, 114, 182, 0.28), transparent 68%);
  animation-duration: 50s;
  animation-delay: -12s;
}

.milky {
  position: absolute;
  inset: -30%;
  background:
    linear-gradient(
      118deg,
      transparent 0%,
      transparent 34%,
      rgba(192, 132, 252, 0.11) 42%,
      rgba(167, 139, 250, 0.15) 47%,
      rgba(103, 232, 249, 0.17) 50%,
      rgba(244, 114, 182, 0.12) 54%,
      rgba(192, 132, 252, 0.08) 58%,
      transparent 66%,
      transparent 100%
    );
  background-size: 220% 220%;
  animation: milkyFlow 36s linear infinite;
  opacity: 0.65;
  mix-blend-mode: screen;
  will-change: transform, background-position;
  contain: layout paint;
}
.milky-b {
  inset: -40%;
  opacity: 0.35;
  animation-duration: 56s;
  animation-direction: reverse;
  background:
    linear-gradient(
      105deg,
      transparent 0%,
      transparent 40%,
      rgba(99, 102, 241, 0.09) 46%,
      rgba(165, 243, 252, 0.13) 50%,
      rgba(216, 180, 254, 0.09) 54%,
      transparent 60%,
      transparent 100%
    );
  background-size: 240% 240%;
}
.dust {
  position: absolute;
  inset: 0;
  opacity: 0.35;
  mix-blend-mode: screen;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 22%, rgba(255,255,255,0.55), transparent),
    radial-gradient(1px 1px at 28% 48%, rgba(200,220,255,0.45), transparent),
    radial-gradient(1.2px 1.2px at 44% 18%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1px 1px at 62% 62%, rgba(220,200,255,0.5), transparent),
    radial-gradient(1.4px 1.4px at 78% 34%, rgba(180,240,255,0.45), transparent),
    radial-gradient(1px 1px at 88% 72%, rgba(255,255,255,0.35), transparent),
    radial-gradient(1.2px 1.2px at 18% 78%, rgba(200,180,255,0.4), transparent),
    radial-gradient(1px 1px at 52% 88%, rgba(255,255,255,0.3), transparent);
  animation: dustDrift 60s linear infinite;
}

@keyframes nebulaDrift {
  0% { transform: translate(0, 0) scale(1) rotate(0deg); }
  50% { transform: translate(4%, -3%) scale(1.08) rotate(4deg); }
  100% { transform: translate(-3%, 4%) scale(1.03) rotate(-3deg); }
}

@keyframes milkyFlow {
  0% { background-position: 0% 35%; transform: rotate(-10deg) translate3d(0, 0, 0); }
  50% { background-position: 50% 50%; transform: rotate(-10deg) translate3d(-2%, 1%, 0); }
  100% { background-position: 100% 65%; transform: rotate(-10deg) translate3d(0, 0, 0); }
}

@keyframes dustDrift {
  0% { transform: translate3d(0, 0, 0); }
  100% { transform: translate3d(-3%, 2%, 0); }
}

#starfield {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  opacity: 0.75;
}

.noise {
  position: fixed;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  opacity: 0.02;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.nav, .hero, .section, .footer, .marquee-strip {
  position: relative;
  z-index: 5;
}

/* nav */
.nav {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  backdrop-filter: blur(8px);
  background: rgba(5, 4, 12, 0.78);
  border-bottom: 1px solid var(--glass-border);
  z-index: 20;
}

.nav-logo {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: 0.18em;
  font-size: 0.95rem;
  background: linear-gradient(90deg, var(--text), var(--neon2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav-links {
  display: flex;
  gap: 1rem;
  align-items: center;
  font-size: 0.82rem;
  color: var(--muted);
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--neon), var(--neon3));
  color: #12081f !important;
  font-weight: 700;
}

@media (max-width: 860px) {
  .nav-links a:not(.nav-cta) { display: none; }
}

/* hero */
.hero {
  min-height: calc(100vh - 60px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 4rem 1.5rem 5rem;
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
}

.hero-kicker {
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  color: var(--neon2);
  margin-bottom: 1rem;
  font-weight: 700;
}

.hero-orbs { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(28px);
  animation: float 12s ease-in-out infinite;
  contain: layout paint;
  will-change: transform;
}
.orb-a {
  width: 280px; height: 280px;
  background: rgba(192, 132, 252, 0.28);
  top: 10%; right: 5%;
}
.orb-b {
  width: 200px; height: 200px;
  background: rgba(103, 232, 249, 0.2);
  bottom: 15%; left: 0;
  animation-delay: -3s;
}
.orb-c {
  width: 160px; height: 160px;
  background: rgba(244, 114, 182, 0.22);
  top: 40%; left: 40%;
  animation-delay: -5s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(20px, -30px) scale(1.08); }
}

.hero-title {
  font-family: var(--display);
  font-size: clamp(2.6rem, 8vw, 5.2rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}
.hero-title .line { display: block; }

.gradient-text {
  background: linear-gradient(110deg, var(--neon) 0%, var(--neon2) 40%, var(--neon3) 70%, var(--neon) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: shine 6s linear infinite;
}

@keyframes shine {
  to { background-position: 200% center; }
}

.hero-sub {
  max-width: 34rem;
  color: var(--muted);
  font-size: 1.1rem;
  margin-bottom: 2rem;
}
.hero-sub strong { color: var(--text); }

.hero-actions { display: flex; flex-wrap: wrap; gap: 0.9rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.6rem;
  border-radius: 999px;
  font-weight: 700;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}
.btn-primary {
  background: linear-gradient(135deg, var(--neon), #818cf8 50%, var(--neon2));
  color: #0b0614;
  box-shadow: 0 0 22px rgba(192, 132, 252, 0.28);
}
.btn-primary:hover { box-shadow: 0 0 28px rgba(103, 232, 249, 0.32); }
.btn-ghost {
  border: 1px solid var(--glass-border);
  background: var(--glass);
  backdrop-filter: blur(4px);
}
.btn-ghost:hover { border-color: var(--neon); }

.scroll-hint {
  margin-top: 4rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
}
.scroll-hint span {
  width: 18px; height: 28px;
  border: 1px solid var(--muted);
  border-radius: 10px;
  position: relative;
}
.scroll-hint span::after {
  content: "";
  position: absolute;
  top: 6px; left: 50%;
  width: 3px; height: 6px;
  margin-left: -1.5px;
  background: var(--neon2);
  border-radius: 2px;
  animation: scrollDot 1.6s ease-in-out infinite;
}
@keyframes scrollDot {
  0% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(10px); }
}

/* marquee */
.marquee-strip {
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
  background: linear-gradient(90deg, rgba(192,132,252,0.08), rgba(103,232,249,0.06), rgba(244,114,182,0.08));
  overflow: hidden;
  padding: 0.85rem 0;
  margin: 0;
}
.marquee-track {
  display: flex;
  gap: 3rem;
  width: max-content;
  animation: marquee 36s linear infinite;
  white-space: nowrap;
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: 0.08em;
  font-size: 0.92rem;
  color: var(--text);
  opacity: 0.85;
}
.marquee-track span::after {
  content: " ✦ ";
  color: var(--neon2);
  margin-left: 3rem;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* sections */
.section {
  padding: 5.5rem 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.section-head { margin-bottom: 2.5rem; }
.eyebrow {
  color: var(--neon);
  letter-spacing: 0.2em;
  font-size: 0.72rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}
.section-title {
  font-family: var(--display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.section-desc {
  color: var(--muted);
  margin-top: 0.75rem;
  max-width: 36rem;
}

.glass, .glass-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(6px);
  border-radius: var(--radius);
}

/* manifesto */
.manifesto-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
@media (max-width: 700px) {
  .manifesto-grid { grid-template-columns: 1fr; }
}

.glass-card {
  padding: 1.6rem 1.5rem;
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
  transform-style: preserve-3d;
}
.glass-card:hover {
  border-color: rgba(192, 132, 252, 0.45);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
}
.card-num {
  font-family: var(--display);
  color: var(--neon2);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
}
.glass-card h3 {
  margin: 0.7rem 0 0.5rem;
  font-size: 1.2rem;
}
.glass-card p { color: var(--muted); font-size: 0.95rem; }

.mega-quote {
  margin-top: 2.5rem;
  padding: 2rem 1.5rem;
  text-align: center;
  font-family: var(--display);
  font-size: clamp(1.3rem, 3.5vw, 2rem);
  font-weight: 700;
  line-height: 1.35;
  background: linear-gradient(90deg, transparent, rgba(192, 132, 252, 0.12), transparent);
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
  background-size: 200% 100%;
  animation: quoteSweep 10s ease-in-out infinite;
}
@keyframes quoteSweep {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* journey — vwlab-style numbered chapters */
.journey-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.journey-item {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 1.25rem;
  padding: 1.5rem 1.4rem;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
  position: relative;
  overflow: hidden;
}
.journey-item::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--neon2), var(--neon), var(--neon3));
  opacity: 0.7;
}
.journey-item:hover {
  border-color: rgba(103, 232, 249, 0.4);
  box-shadow: 0 10px 24px rgba(0,0,0,0.28);
  transform: translateX(4px);
}
.journey-idx {
  font-family: var(--display);
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  background: linear-gradient(160deg, var(--neon2), var(--neon));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.1;
  padding-top: 0.15rem;
}
.journey-body h3 {
  font-size: 1.15rem;
  margin-bottom: 0.45rem;
}
.journey-body p {
  color: var(--muted);
  font-size: 0.95rem;
}
.journey-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.85rem;
}
.journey-tags em {
  font-style: normal;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  padding: 0.22rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  color: var(--neon2);
  background: rgba(103, 232, 249, 0.06);
}
@media (max-width: 600px) {
  .journey-item { grid-template-columns: 64px 1fr; gap: 0.85rem; }
  .journey-idx { font-size: 1.2rem; }
}

/* mosaic — dense concept tiles */
.mosaic-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: minmax(140px, auto);
  gap: 0.85rem;
}
.mosaic-tile {
  padding: 1.25rem 1.2rem;
  border-radius: var(--radius);
  border: 1px solid var(--glass-border);
  background: var(--glass);
  backdrop-filter: blur(5px);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 0.35rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
  transform-style: preserve-3d;
}
.mosaic-tile::after {
  content: "";
  position: absolute;
  inset: -40% -20%;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.08) 50%, transparent 70%);
  transform: translateX(-60%);
  transition: transform 0.7s ease;
  pointer-events: none;
}
.mosaic-tile:hover::after { transform: translateX(60%); }
.mosaic-tile:hover {
  border-color: rgba(192, 132, 252, 0.5);
  box-shadow: 0 10px 24px rgba(0,0,0,0.28);
}
.mosaic-tile.t-tall { grid-row: span 2; min-height: 280px; }
.mosaic-tile.t-wide { grid-column: span 2; }
.mosaic-tile.t-neon {
  background:
    linear-gradient(145deg, rgba(192,132,252,0.22), rgba(244,114,182,0.12)),
    var(--glass);
}
.mosaic-tile.t-cyan {
  background:
    linear-gradient(145deg, rgba(103,232,249,0.18), rgba(192,132,252,0.1)),
    var(--glass);
}
.mt-kicker {
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--neon);
  font-weight: 700;
  margin-bottom: auto;
}
.mosaic-tile h3 {
  font-size: 1.05rem;
  line-height: 1.3;
}
.mosaic-tile p {
  color: var(--muted);
  font-size: 0.88rem;
}
@media (max-width: 900px) {
  .mosaic-grid { grid-template-columns: repeat(2, 1fr); }
  .mosaic-tile.t-tall { grid-row: span 1; min-height: 160px; }
}
@media (max-width: 520px) {
  .mosaic-grid { grid-template-columns: 1fr; }
  .mosaic-tile.t-wide { grid-column: span 1; }
}

/* playground */
.field-panel { padding: 1.25rem; }

.field-stage {
  position: relative;
  min-height: 340px;
  height: min(52vh, 420px);
  border-radius: 16px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 55%, rgba(192, 132, 252, 0.18), transparent 55%),
    radial-gradient(circle at 20% 30%, rgba(103, 232, 249, 0.08), transparent 40%),
    rgba(0, 0, 0, 0.25);
  touch-action: none;
  user-select: none;
}

.field-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.field-lines line {
  stroke: rgba(103, 232, 249, 0.22);
  stroke-width: 1.2;
  transition: stroke 0.35s, stroke-width 0.35s, opacity 0.35s;
}
.field-lines line.lit {
  stroke: rgba(244, 114, 182, 0.85);
  stroke-width: 2;
  /* drop-shadow removed for paint cost */
}

.field-node {
  position: absolute;
  left: var(--nx);
  top: var(--ny);
  z-index: 2;
  width: 64px;
  height: 64px;
  margin: -32px 0 0 -32px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.35), rgba(192, 132, 252, 0.35) 45%, rgba(14, 11, 26, 0.85) 75%);
  border: 1px solid rgba(255, 255, 255, 0.28);
  box-shadow: 0 0 12px rgba(192, 132, 252, 0.25);
  cursor: grab;
  transition: box-shadow 0.25s, border-color 0.25s;
  will-change: transform;
  transform: translate3d(0, 0, 0);
}
.field-node span {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  pointer-events: none;
}
.field-node.core {
  width: 78px;
  height: 78px;
  margin: -39px 0 0 -39px;
  background: radial-gradient(circle at 35% 30%, #fff, var(--neon) 40%, var(--neon3) 80%);
  color: #12081f;
  box-shadow: 0 0 18px rgba(192, 132, 252, 0.4);
}
.field-node:hover,
.field-node.active {
  border-color: var(--neon2);
  box-shadow: 0 0 18px rgba(103, 232, 249, 0.4);
}
.field-node.dragging {
  cursor: grabbing;
  z-index: 4;
}
.field-node.lit {
  border-color: var(--neon3);
  box-shadow: 0 0 16px rgba(244, 114, 182, 0.45);
}

.field-ripple {
  position: absolute;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border-radius: 50%;
  border: 1.5px solid rgba(103, 232, 249, 0.7);
  pointer-events: none;
  opacity: 0;
  z-index: 0;
  transform: translate3d(-9999px, -9999px, 0) scale(0.2);
}
.field-ripple.pulse {
  animation: fieldPulse 0.7s ease-out forwards;
}
@keyframes fieldPulse {
  0% { opacity: 0.85; transform: translate3d(var(--rx), var(--ry), 0) scale(0.2); }
  100% { opacity: 0; transform: translate3d(var(--rx), var(--ry), 0) scale(8); }
}

.field-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-top: 1rem;
}
.field-status {
  color: var(--muted);
  font-size: 0.88rem;
  letter-spacing: 0.04em;
  flex: 1;
  min-width: 200px;
}
.field-reset {
  padding: 0.45rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--muted);
  font-size: 0.82rem;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.field-reset:hover {
  color: var(--text);
  border-color: var(--neon);
  background: rgba(192, 132, 252, 0.15);
}

/* orbit */
.orbit-wrap {
  position: relative;
  width: min(420px, 90vw);
  height: min(420px, 90vw);
  margin: 0 auto 3rem;
}

.orbit-center {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 88px; height: 88px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, var(--neon), var(--neon3));
  color: #12081f;
  font-family: var(--display);
  font-weight: 800;
  z-index: 2;
  box-shadow: 0 0 18px rgba(192, 132, 252, 0.35);
}
.orbit-center small { font-size: 0.65rem; font-weight: 600; opacity: 0.8; }

.orbit {
  position: absolute;
  top: 50%; left: 50%;
  border: 1px dashed rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}
.orbit-1 { width: 55%; height: 55%; animation: spin 18s linear infinite; }
.orbit-2 { width: 78%; height: 78%; animation: spin 28s linear infinite reverse; }
.orbit-3 { width: 100%; height: 100%; animation: spin 40s linear infinite; }

@keyframes spin { to { transform: translate(-50%, -50%) rotate(360deg); } }

.sat {
  position: absolute;
  padding: 0.25rem 0.55rem;
  font-size: 0.7rem;
  border-radius: 999px;
  background: rgba(14, 11, 26, 0.9);
  border: 1px solid var(--glass-border);
  color: var(--neon2);
  white-space: nowrap;
}
.orbit-1 .sat:nth-child(1) { top: -10px; left: 50%; transform: translateX(-50%); }
.orbit-1 .sat:nth-child(2) { bottom: -10px; left: 50%; transform: translateX(-50%); }
.orbit-2 .sat:nth-child(1) { top: 12%; right: 0; }
.orbit-2 .sat:nth-child(2) { bottom: 18%; left: -8px; }
.orbit-2 .sat:nth-child(3) { top: 45%; right: -12px; }
.orbit-3 .sat:nth-child(1) { top: 0; left: 30%; }
.orbit-3 .sat:nth-child(2) { top: 35%; right: -8px; }
.orbit-3 .sat:nth-child(3) { bottom: 8%; left: 15%; }
.orbit-3 .sat:nth-child(4) { bottom: 30%; left: -10px; }

.timeline {
  list-style: none;
  max-width: 560px;
  margin: 0 auto;
  border-left: 2px solid rgba(192, 132, 252, 0.35);
  padding-left: 1.4rem;
}
.timeline li {
  position: relative;
  padding: 0.85rem 0;
  color: var(--muted);
}
.timeline li::before {
  content: "";
  position: absolute;
  left: -1.65rem;
  top: 1.15rem;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 12px var(--neon);
}
.timeline span {
  display: inline-block;
  min-width: 3.2rem;
  margin-right: 0.6rem;
  color: var(--neon2);
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.85rem;
}

/* signal panel */
.signal-panel {
  padding: 1.5rem 1.4rem;
  margin-bottom: 1.5rem;
  position: relative;
  overflow: hidden;
}
.signal-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(103,232,249,0.08) 50%, transparent 60%);
  background-size: 220% 100%;
  animation: signalSweep 7s linear infinite;
  pointer-events: none;
}
@keyframes signalSweep {
  from { background-position: 100% 0; }
  to { background-position: -100% 0; }
}
.signal-head {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--neon2);
  font-weight: 700;
  margin-bottom: 0.9rem;
  position: relative;
}
.signal-live {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 10px #34d399;
  animation: liveBlink 1.4s ease-in-out infinite;
}
@keyframes liveBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}
.signal-freq {
  margin-left: auto;
  color: var(--muted);
  letter-spacing: 0.1em;
}
.signal-msg {
  font-family: var(--display);
  font-size: clamp(1.05rem, 2.4vw, 1.35rem);
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 1.1rem;
  position: relative;
}
.signal-btn {
  position: relative;
  overflow: hidden;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  border: 1px solid rgba(103, 232, 249, 0.4);
  background: rgba(103, 232, 249, 0.1);
  color: var(--neon2);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  transition: background 0.2s, box-shadow 0.2s;
}
.signal-btn:hover {
  background: rgba(103, 232, 249, 0.2);
  box-shadow: 0 0 28px rgba(103, 232, 249, 0.25);
}

/* connect */
.connect-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
@media (max-width: 700px) {
  .connect-row { grid-template-columns: 1fr; }
}

.connect-card {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.connect-card:hover {
  border-color: var(--neon2);
  box-shadow: 0 0 40px rgba(103, 232, 249, 0.15);
}
.cc-label {
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--neon);
}
.connect-card strong { font-size: 1.25rem; }
.connect-card em {
  font-style: normal;
  color: var(--muted);
  font-size: 0.85rem;
}

/* footer */
.footer {
  text-align: center;
  padding: 3rem 1.5rem 4rem;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--glass-border);
}
.footer-note { margin-top: 0.4rem; opacity: 0.7; }

/* reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in {
  opacity: 1;
  transform: none;
}
.reveal.d1 { transition-delay: 0.05s; }
.reveal.d2 { transition-delay: 0.12s; }
.reveal.d3 { transition-delay: 0.2s; }
.reveal.d4 { transition-delay: 0.28s; }
.reveal.d5 { transition-delay: 0.36s; }
.reveal.d6 { transition-delay: 0.44s; }

/* ripple */
.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  transform: scale(0);
  animation: rippleAnim 0.6s ease-out forwards;
  pointer-events: none;
}
@keyframes rippleAnim {
  to { transform: scale(4); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .orb, .gradient-text, .orbit, .scroll-hint span::after,
  .nebula, .milky, .dust, .field-ripple.pulse,
  .marquee-track, .mega-quote, .signal-panel::before,
  .signal-live {
    animation: none !important;
  }
  .reveal { opacity: 1; transform: none; transition: none; }
}