:root {
  /* DESIGN FONT SOURCE: Cormorant Garamond, Source Serif 4, IBM Plex Mono (Google Fonts); SCRIPT SPEC: IntersectionObserver` (threshold: 0.4) */
  --cosmos: #0D0B2E;
  --slate: #1A1832;
  --viridian: #2FC4AD;
  --crimson: #E03A5E;
  --amber: #D4A843;
  --parchment: #E8E4DC;
  --ash: #B0ABAC;
  --mauve: #5A5465;
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--ash);
  font-family: "Source Serif 4", "Cormorant Garamond", serif;
  background: radial-gradient(circle at 62% 28%, rgba(47, 196, 173, 0.08), transparent 34vw), var(--cosmos);
}

#starfield {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  background: var(--cosmos);
}

.orbital-rings {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.ring {
  position: absolute;
  left: 50%;
  top: 50%;
  border: 1px solid rgba(90, 84, 101, 0.18);
  border-radius: 50%;
  transform: translate(-50%, -50%) rotate(0deg);
  animation: orbitRing 120s linear infinite;
}

.ring-a { width: 74vw; height: 28vw; }
.ring-b { width: 44vw; height: 92vw; animation-duration: 156s; animation-direction: reverse; }
.ring-c { width: 96vw; height: 62vw; animation-duration: 204s; opacity: 0.6; }

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

.terminal-margin {
  position: fixed;
  left: 0;
  top: 0;
  width: 48px;
  height: 100vh;
  z-index: 5;
  border-right: 1px solid rgba(90, 84, 101, 0.22);
  color: var(--mauve);
  font-family: "IBM Plex Mono", monospace;
  font-size: clamp(0.65rem, 1vw, 0.8rem);
  font-weight: 300;
  letter-spacing: 0.08em;
}

.tick {
  position: absolute;
  left: 28px;
  width: 18px;
  height: 1px;
  background: rgba(176, 171, 172, 0.26);
}

.margin-label {
  position: fixed;
  left: 14px;
  transform: rotate(-90deg) translateX(-100%);
  transform-origin: left top;
  white-space: nowrap;
  opacity: 0.54;
}

.m0 { top: 14vh; } .m1 { top: 100vh; } .m2 { top: 200vh; } .m3 { top: 300vh; }
.m4 { top: 400vh; } .m5 { top: 500vh; } .m6 { top: 600vh; }
.t1 { top: 14vh; } .t2 { top: 28vh; } .t3 { top: 42vh; } .t4 { top: 56vh; } .t5 { top: 70vh; } .t6 { top: 84vh; }

main {
  position: relative;
  z-index: 1;
}

.orbit-section {
  position: relative;
  min-height: 100vh;
  isolation: isolate;
  overflow: hidden;
  background: linear-gradient(112deg, rgba(26, 24, 50, 0.2), rgba(13, 11, 46, 0) 58%);
}

.orbit-section::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 48px;
  height: 1px;
  background: linear-gradient(90deg, rgba(47, 196, 173, 0.18), transparent 55%, rgba(224, 58, 94, 0.12));
  opacity: 0.8;
}

.orbit-section::after {
  content: "";
  position: absolute;
  inset: 16vh 10vw;
  z-index: -1;
  opacity: 0.03;
  background-image:
    linear-gradient(60deg, var(--viridian) 1px, transparent 1px),
    linear-gradient(120deg, var(--viridian) 1px, transparent 1px);
  background-size: 110px 190px;
  clip-path: polygon(0 9%, 95% 0, 100% 74%, 18% 100%);
}

.coordinate {
  position: absolute;
  top: 7vh;
  left: 8vw;
  margin: 0;
  color: var(--mauve);
  font-family: "IBM Plex Mono", monospace;
  font-size: clamp(0.65rem, 1vw, 0.8rem);
  font-weight: 300;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.thesis {
  position: absolute;
  top: 12vh;
  left: 8vw;
  z-index: 3;
  width: min(760px, 74vw);
  margin: 0;
  color: var(--parchment);
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(2rem, 5vw, 4.2rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 800ms var(--ease), transform 800ms var(--ease);
}

.thesis em {
  color: var(--viridian);
  font-style: normal;
}

.is-active .thesis { opacity: 1; transform: translateX(0); }

.datum {
  position: absolute;
  right: 8vw;
  bottom: 12vh;
  z-index: 3;
  width: min(430px, 70vw);
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 800ms var(--ease) 400ms, transform 800ms var(--ease) 400ms;
  text-align: right;
}

.is-active .datum { opacity: 1; transform: translateX(0); }

.datum strong {
  display: block;
  margin-bottom: 0.7rem;
  color: var(--amber);
  font-family: "IBM Plex Mono", monospace;
  font-size: clamp(0.65rem, 1vw, 0.8rem);
  font-weight: 300;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.datum span {
  display: block;
  color: var(--ash);
  font-family: "Source Serif 4", serif;
  font-size: clamp(0.95rem, 1.8vw, 1.15rem);
  font-weight: 300;
  line-height: 1.8;
}

.watermark {
  position: absolute;
  right: 5vw;
  top: 3vh;
  color: var(--parchment);
  font-family: "Cormorant Garamond", serif;
  font-size: 15vw;
  font-weight: 300;
  line-height: 1;
  opacity: 0.03;
  pointer-events: none;
}

.generative-svg {
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(72vw, 900px);
  height: min(54vh, 520px);
  transform: translate(-50%, -50%);
  overflow: visible;
  filter: drop-shadow(0 0 28px rgba(47, 196, 173, 0.12));
}

.generative-svg path,
.generative-svg polygon,
.generative-svg ellipse,
.generative-svg line {
  fill: none;
  stroke: rgba(47, 196, 173, 0.3);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.generative-svg circle {
  fill: var(--amber);
  stroke: rgba(232, 228, 220, 0.54);
  stroke-width: 1;
  animation: pulseNode 5.8s ease-in-out infinite alternate;
}

.generative-svg .hot {
  stroke: rgba(224, 58, 94, 0.68);
  stroke-dasharray: 4 2;
}

.generative-svg .eclipse {
  fill: rgba(13, 11, 46, 0.78);
  stroke: rgba(224, 58, 94, 0.4);
}

.noise-path {
  stroke: var(--crimson) !important;
  stroke-width: 2 !important;
  filter: drop-shadow(5px 0 0 rgba(47, 196, 173, 0.28));
}

.terminal-lines line { stroke: rgba(232, 228, 220, 0.2); }

@keyframes pulseNode {
  from { opacity: 0.55; transform: scale(0.96); transform-origin: center; }
  to { opacity: 1; transform: scale(1.08); transform-origin: center; }
}

.glitch-seam {
  position: relative;
  z-index: 4;
  height: 80px;
  margin-top: -40px;
  margin-bottom: -40px;
  clip-path: polygon(0 0, 100% 40px, 100% 80px, 0 40px);
  background: repeating-linear-gradient(90deg, rgba(224, 58, 94, 0.3) 0px, transparent 2px, rgba(47, 196, 173, 0.3) 4px, transparent 6px);
  mix-blend-mode: screen;
  overflow: hidden;
}

.glitch-seam i {
  position: absolute;
  width: 28vw;
  height: 100%;
  background: rgba(212, 168, 67, 0.06);
  clip-path: polygon(18% 0, 100% 0, 82% 100%, 0 100%);
}

.glitch-seam i:nth-child(1) { left: -6vw; }
.glitch-seam i:nth-child(2) { left: 12vw; opacity: 0.5; }
.glitch-seam i:nth-child(3) { left: 31vw; opacity: 0.7; }
.glitch-seam i:nth-child(4) { left: 49vw; opacity: 0.45; }
.glitch-seam i:nth-child(5) { left: 68vw; opacity: 0.7; }
.glitch-seam i:nth-child(6) { left: 86vw; opacity: 0.4; }
.seam-crimson { background-color: rgba(224, 58, 94, 0.12); }

.runtime-glitch {
  position: fixed;
  left: 0;
  width: 100vw;
  height: 200px;
  z-index: 100;
  pointer-events: none;
  border-top: 1px solid var(--crimson);
  border-bottom: 1px solid var(--crimson);
  mix-blend-mode: screen;
  background: rgba(224, 58, 94, 0.07);
  transform: translate(3px, 0) skew(0.5deg);
  filter: hue-rotate(180deg) saturate(2);
}

.runtime-glitch::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(90deg, rgba(224,58,94,0.3) 0px, transparent 2px, rgba(47,196,173,0.3) 4px, transparent 6px);
}

@media (max-width: 760px) {
  .terminal-margin { width: 28px; opacity: 0.55; }
  .orbit-section::before { left: 28px; }
  .coordinate, .thesis { left: 10vw; }
  .thesis { width: 82vw; }
  .datum { right: 9vw; width: 78vw; }
  .generative-svg { width: 94vw; opacity: 0.72; }
}