:root {
  color-scheme: dark;
  --bg: #05070b;
  --surface: rgba(16, 23, 34, 0.72);
  --line: rgba(141, 247, 255, 0.18);
  --line-strong: rgba(0, 229, 255, 0.38);
  --text: #e6f1ff;
  --muted: #8b9bad;
  --cyan: #00e5ff;
  --magenta: #ff2bd6;
  --amber: #f6c85f;
  --green: #58ff9a;
  --shadow-cyan: 0 0 34px rgba(0, 229, 255, 0.22);
  --shadow-magenta: 0 0 42px rgba(255, 43, 214, 0.14);
  --radius: 8px;
  --mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --display: "Space Grotesk", Sora, Inter, ui-sans-serif, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 18% 12%, rgba(0, 229, 255, 0.12), transparent 30vw),
    radial-gradient(circle at 82% 16%, rgba(255, 43, 214, 0.11), transparent 26vw),
    linear-gradient(180deg, #05070b 0%, #081018 45%, #05070b 100%);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.045) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.75), transparent 85%);
  animation: grid-drift 26s linear infinite;
}

a { color: inherit; text-decoration: none; }

#lab-canvas {
  position: fixed;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  opacity: 0.72;
}

.ambient {
  position: fixed;
  z-index: -1;
  width: 38rem;
  height: 38rem;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.24;
  pointer-events: none;
}
.ambient-cyan { right: -12rem; top: 8rem; background: var(--cyan); }
.ambient-magenta { left: -12rem; bottom: 10rem; background: var(--magenta); }

.scanline {
  position: fixed;
  inset-inline: 0;
  top: -12%;
  z-index: 4;
  height: 10rem;
  pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(0, 229, 255, 0.08), transparent);
  transform: translateY(-20vh);
  animation: scanline 13s ease-in-out infinite;
}

.site-header, .site-footer, .section {
  width: min(1120px, calc(100% - 32px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 18px 0;
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  font-family: var(--mono);
  font-size: 0.86rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-mark {
  width: 1rem;
  height: 1rem;
  border: 1px solid var(--cyan);
  border-radius: 3px;
  background:
    linear-gradient(90deg, transparent 42%, rgba(0, 229, 255, 0.8) 42% 58%, transparent 58%),
    linear-gradient(0deg, transparent 42%, rgba(255, 43, 214, 0.8) 42% 58%, transparent 58%);
  box-shadow: var(--shadow-cyan);
  transform: rotate(45deg);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.78rem;
  text-transform: uppercase;
}
.nav a { padding: 0.45rem 0; transition: color 160ms ease, text-shadow 160ms ease; }
.nav a:hover { color: var(--cyan); text-shadow: 0 0 18px rgba(0, 229, 255, 0.45); }

.section { padding: 88px 0; }
.hero {
  min-height: calc(100vh - 84px);
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.62fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
  padding-top: 34px;
}

.eyebrow, .section-kicker {
  margin: 0 0 1rem;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 880px;
  margin-bottom: 1.3rem;
  font-family: var(--display);
  font-size: clamp(3rem, 8vw, 7.4rem);
  line-height: 0.92;
  letter-spacing: 0;
}
h2 {
  margin-bottom: 0.8rem;
  font-family: var(--display);
  font-size: clamp(2rem, 4.5vw, 4.4rem);
  line-height: 1;
  letter-spacing: 0;
}
h3 { margin-bottom: 0.65rem; font-family: var(--display); font-size: 1.1rem; line-height: 1.2; }

.accent-text {
  display: block;
  color: transparent;
  background: linear-gradient(90deg, var(--cyan), var(--magenta) 54%, var(--amber));
  -webkit-background-clip: text;
  background-clip: text;
  filter: drop-shadow(0 0 22px rgba(0, 229, 255, 0.18));
}

.hero-subtitle {
  max-width: 700px;
  margin-bottom: 1.6rem;
  color: #bdd0e4;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}
.status-row, .hero-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; }
.status-chip {
  border: 1px solid rgba(0, 229, 255, 0.22);
  border-radius: 999px;
  padding: 0.42rem 0.72rem;
  background: rgba(5, 12, 18, 0.72);
  color: #b8d4e6;
  font-family: var(--mono);
  font-size: 0.76rem;
}
.hero-actions { margin-top: 2rem; }

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 0.72rem 1rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { background: linear-gradient(135deg, rgba(0, 229, 255, 0.22), rgba(255, 43, 214, 0.16)); box-shadow: var(--shadow-cyan); }
.button-ghost { background: rgba(5, 12, 18, 0.6); color: #c9d9e8; }

.system-panel, .principle-card, .module-card, .contact {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(16, 23, 34, 0.76), rgba(7, 12, 18, 0.7));
  box-shadow: 0 18px 80px rgba(0, 0, 0, 0.32);
  overflow: hidden;
}
.system-panel::before, .principle-card::before, .module-card::before, .contact::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.18), transparent 34%, rgba(255, 43, 214, 0.13));
  opacity: 0;
  transition: opacity 180ms ease;
}
.system-panel:hover::before, .principle-card:hover::before, .module-card:hover::before, .contact:hover::before { opacity: 1; }
.system-panel { padding: 1.2rem; }

.panel-topline {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
}
.live-dot { position: relative; color: var(--green); }
.live-dot::before {
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  margin-right: 0.45rem;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 16px rgba(88, 255, 154, 0.72);
  content: "";
}

.terminal {
  min-height: 104px;
  border: 1px solid rgba(0, 229, 255, 0.18);
  border-radius: 6px;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.32);
  font-family: var(--mono);
  color: #bfeeff;
}
.terminal-line { display: flex; gap: 0.6rem; }
.prompt { color: var(--magenta); }

.signal-stack { display: grid; gap: 0.8rem; margin-top: 1.2rem; }
.signal-row {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  align-items: center;
  gap: 0.8rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.76rem;
  text-transform: uppercase;
}
.bar { height: 7px; border-radius: 999px; background: rgba(255, 255, 255, 0.08); overflow: hidden; }
.bar i { display: block; width: var(--w); height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--cyan), var(--magenta)); box-shadow: 0 0 18px rgba(0, 229, 255, 0.42); }

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(320px, 0.88fr);
  gap: clamp(1.6rem, 5vw, 5rem);
  align-items: start;
}
.section-copy { color: #bed0df; font-size: 1.06rem; }
.section-heading { max-width: 780px; margin-bottom: 2rem; }
.section-heading p { color: var(--muted); font-size: 1.02rem; }
.principle-grid, .module-grid { display: grid; gap: 1rem; }
.principle-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.module-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.principle-card, .module-card {
  padding: 1.15rem;
  transition: transform 170ms ease, border-color 170ms ease, box-shadow 170ms ease;
}
.principle-card:hover, .module-card:hover { border-color: var(--line-strong); box-shadow: var(--shadow-cyan), var(--shadow-magenta); transform: translateY(-4px); }
.principle-card p, .module-card p { margin-bottom: 0; color: var(--muted); }
.card-index, .module-code { display: inline-block; margin-bottom: 1.6rem; color: var(--amber); font-family: var(--mono); font-size: 0.76rem; }
.module-head { display: flex; justify-content: space-between; gap: 1rem; margin-bottom: 1.1rem; }
.module-code { margin-bottom: 0; }
.module-pulse { width: 0.7rem; height: 0.7rem; border-radius: 50%; background: var(--green); box-shadow: 0 0 18px rgba(88, 255, 154, 0.8); animation: pulse 2.8s ease-in-out infinite; }

.method-list {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.9rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: method;
}
.method-list li { position: relative; min-height: 170px; border-top: 1px solid var(--line-strong); padding-top: 1rem; counter-increment: method; }
.method-list li::before { display: block; margin-bottom: 1.8rem; color: rgba(0, 229, 255, 0.7); font-family: var(--mono); font-size: 0.75rem; content: "0" counter(method); }
.method-list span { display: block; margin-bottom: 0.6rem; font-family: var(--display); font-size: 1rem; font-weight: 700; }
.method-list p { margin-bottom: 0; color: var(--muted); font-size: 0.92rem; }

.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(280px, 0.7fr);
  gap: 2rem;
  align-items: center;
  padding: clamp(1.3rem, 4vw, 2.4rem);
}
.contact p { color: #c1d0df; }
.contact-link { display: inline-flex; width: fit-content; border-bottom: 1px solid rgba(0, 229, 255, 0.65); color: var(--cyan); font-family: var(--mono); word-break: break-word; }

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--line);
  padding: 2rem 0 3rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
}

@keyframes grid-drift { from { background-position: 0 0; } to { background-position: 54px 54px; } }
@keyframes scanline { 0%, 62%, 100% { transform: translateY(-22vh); opacity: 0; } 68% { opacity: 1; } 82% { transform: translateY(112vh); opacity: 0; } }
@keyframes pulse { 0%, 100% { opacity: 0.55; transform: scale(0.86); } 50% { opacity: 1; transform: scale(1); } }

@media (max-width: 920px) {
  .nav { display: none; }
  .hero, .section-grid, .contact { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-top: 76px; }
  .principle-grid, .module-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .method-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
  .site-header, .site-footer, .section { width: min(100% - 24px, 1120px); }
  .section { padding: 64px 0; }
  h1 { font-size: clamp(2.65rem, 16vw, 4.2rem); }
  .principle-grid, .module-grid, .method-list { grid-template-columns: 1fr; }
  .site-footer { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  #lab-canvas, .scanline, .ambient { display: none; }
}