:root {
  --primary-deep: #2b3d45;
  --surface-light: #e8eff2;
  --surface-mid: #c8d8dc;
  --accent-warm: #d4856a;
  --accent-electric: #4ae3c1;
  --text-primary: #3d5561;
  --void-dark: #1a2a31;
  --signal-pulse: #f0c457;
  --edge: #8faab5;
}

/* Design typography/compliance trace: Interference:** IntersectionObserver` callbacks skeletons (over 800ms designed refined elegance inside deliberately anti-design framework creates typographic irony. beautiful letterforms cropped mobile (allow horizontal with `overflow-x: hidden` (Google sabotaged placement headlines edges provides legibility grounds visual chaos. */

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

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--surface-light);
  color: var(--text-primary);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: clamp(1rem, 1.2vw, 1.15rem);
  font-weight: 400;
  line-height: 1.75;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  background-image: repeating-linear-gradient(transparent, transparent 2px, rgba(27,42,49,0.03) 2px, rgba(27,42,49,0.03) 4px);
}

.page-container { position: relative; width: 100%; isolation: isolate; }

.broadcast-section,
.fragment-grid,
.void-section { position: relative; overflow: hidden; }

.broadcast-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: clamp(3rem, 7vw, 7rem) 2rem;
  background: var(--surface-light);
}

.broadcast-inverted { background: var(--void-dark); }

.broadcast-content { position: relative; z-index: 2; max-width: min(88vw, 1180px); }
.broadcast-left .broadcast-content { margin-left: -5vw; }
.broadcast-right { justify-content: flex-end; }
.broadcast-right .broadcast-content { margin-right: -8vw; padding-left: 3rem; text-align: right; }

.broadcast-headline {
  max-width: 11ch;
  color: var(--primary-deep);
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(3.5rem, 9vw, 8rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 0.94;
  text-wrap: balance;
}

.broadcast-inverted .broadcast-headline {
  color: var(--surface-light);
  mix-blend-mode: difference;
}

.broadcast-text {
  max-width: 620px;
  margin-top: 1.5rem;
  color: var(--text-primary);
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  font-weight: 300;
}

.broadcast-right .broadcast-text { margin-left: auto; }
.broadcast-inverted .broadcast-text { color: #c8d8dc; }

.system-label {
  margin-bottom: 0.9rem;
  color: var(--edge);
  font-family: "DM Mono", monospace;
  font-size: 0.75rem;
  font-weight: 300;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-transform: uppercase;
}

.void-section {
  min-height: 60vh;
  background: var(--surface-light);
}

.void-line {
  position: absolute;
  top: var(--line-y, 50%);
  left: 50%;
  width: min(34vw, 330px);
  height: 1px;
  transform: translate(-50%, 0);
  background: var(--edge);
  box-shadow: 0 0 8px rgba(74,227,193,0.3);
}

.final-void { min-height: 80vh; }

.fragment-grid {
  min-height: 72vh;
  padding: clamp(5rem, 9vw, 9rem) 2rem;
  background: var(--surface-light);
}

.grid-alt { background: #eef5f7; }

.dot-matrix::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.26;
  background-image: radial-gradient(circle, var(--edge) 1px, transparent 1px);
  background-size: 12px 12px;
  mask-image: linear-gradient(90deg, transparent 0%, #000 18%, #000 72%, transparent 100%);
}

.grid-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  column-gap: 0.5rem;
  row-gap: 1.2rem;
  max-width: 1380px;
  margin: 0 auto;
}

.grid-content article:nth-child(even) { transform: translateY(2.2rem); }
.fragment-grid:nth-of-type(4n) .grid-content { column-gap: 3rem; }
.compact-grid { column-gap: 3rem; }

.fragment-block {
  position: relative;
  min-height: 148px;
  padding: 1.35rem;
  overflow: hidden;
  border: 1px solid rgba(143,170,181,0.48);
  border-radius: 2px;
  background: rgba(255,255,255,0.52);
  transition: opacity 0.8s ease, background-color 0.8s ease, border-color 0.8s ease;
}

.fragment-block:nth-child(1) { grid-column: 1 / 3; }
.fragment-block:nth-child(2) { grid-column: 4 / 7; }
.fragment-block:nth-child(3) { grid-column: 7 / 9; }
.fragment-block:nth-child(4) { grid-column: 2 / 5; }
.fragment-block:nth-child(5) { grid-column: 5 / 6; }
.fragment-block:nth-child(6) { grid-column: 6 / 9; }
.compact-grid .fragment-block:nth-child(1) { grid-column: 1 / 4; }
.compact-grid .fragment-block:nth-child(2) { grid-column: 5 / 7; }
.compact-grid .fragment-block:nth-child(3) { grid-column: 7 / 9; }
.compact-grid .fragment-block:nth-child(4) { grid-column: 2 / 5; }
.compact-grid .fragment-block:nth-child(5) { grid-column: 6 / 8; }

.block-content { opacity: 1; transition: opacity 0.8s ease; }
.block-content h3 {
  margin-bottom: 0.6rem;
  color: var(--primary-deep);
  font-family: "Playfair Display", Georgia, serif;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.1;
}
.block-content p { color: var(--text-primary); font-size: 0.95rem; line-height: 1.55; }

.skeleton-state {
  border-color: var(--surface-mid);
  background: var(--surface-light);
}

.skeleton-state .block-content { opacity: 0; }

.skeleton-state::before {
  content: attr(data-skeleton-label);
  position: absolute;
  top: 0.55rem;
  right: 0.7rem;
  z-index: 4;
  color: var(--edge);
  font-family: "DM Mono", monospace;
  font-size: 0.6rem;
  font-weight: 300;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.skeleton-state::after {
  content: "";
  position: absolute;
  bottom: 0.8rem;
  left: 0.8rem;
  z-index: 4;
  width: 4px;
  height: 4px;
  border-radius: 999px;
  background: var(--accent-electric);
  animation: blink-pulse 3s ease-in-out infinite;
}

.skeleton-shimmer {
  position: absolute;
  inset: 1.25rem;
  z-index: 3;
  opacity: 0;
  background:
    linear-gradient(90deg, transparent, rgba(200,216,220,0.6), transparent),
    linear-gradient(var(--surface-mid), var(--surface-mid)) 0 0 / 62% 12px no-repeat,
    linear-gradient(var(--surface-mid), var(--surface-mid)) 0 32px / 92% 10px no-repeat,
    linear-gradient(var(--surface-mid), var(--surface-mid)) 0 58px / 48% 10px no-repeat;
  background-size: 200% 100%, 62% 12px, 92% 10px, 48% 10px;
  transform: translateZ(0);
}

.skeleton-state .skeleton-shimmer { opacity: 1; animation: shimmer-move 2.5s linear infinite; }
.fragment-block:nth-child(2) .skeleton-shimmer { animation-delay: 0.3s; }
.fragment-block:nth-child(3) .skeleton-shimmer { animation-delay: 0.6s; }
.fragment-block:nth-child(4) .skeleton-shimmer { animation-delay: 0.9s; }
.fragment-block:nth-child(5) .skeleton-shimmer { animation-delay: 1.2s; }
.fragment-block:nth-child(6) .skeleton-shimmer { animation-delay: 1.5s; }

@keyframes shimmer-move { from { background-position: -200% 0, 0 0, 0 32px, 0 58px; } to { background-position: 200% 0, 0 0, 0 32px, 0 58px; } }
@keyframes blink-pulse { 0%, 100% { opacity: 0; } 50% { opacity: 1; } }

.signal-block { box-shadow: inset 3px 0 0 var(--signal-pulse); }
.fragment-block:nth-child(3) { box-shadow: inset 2px 0 0 var(--accent-warm); }
.fragment-block:nth-child(6) { box-shadow: inset 2px 0 0 rgba(74,227,193,0.65); }

.iso-field { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.iso-icon {
  position: absolute;
  width: 48px;
  height: 48px;
  opacity: 0.4;
  transform-style: preserve-3d;
  transform: rotateX(45deg) rotateZ(45deg);
  animation: iso-float 10s ease-in-out infinite;
  will-change: opacity;
}

.iso-top, .iso-left, .iso-right { position: absolute; display: block; border: 1px solid var(--edge); }
.iso-top { inset: 8px; background: rgba(200,216,220,0.72); transform: translateZ(12px); }
.iso-left { left: 8px; top: 28px; width: 32px; height: 18px; background: rgba(143,170,181,0.48); transform: skewX(45deg); }
.iso-right { left: 28px; top: 8px; width: 18px; height: 32px; background: rgba(200,216,220,0.38); transform: skewY(45deg); }
.iso-antenna .iso-top { width: 3px; height: 44px; left: 22px; top: 2px; background: var(--primary-deep); }
.iso-antenna .iso-left { width: 24px; height: 2px; left: 10px; top: 16px; background: var(--primary-deep); box-shadow: 0 10px 0 var(--primary-deep), 0 20px 0 var(--primary-deep); }
.iso-antenna .iso-right { width: 6px; height: 6px; left: 21px; top: 0; border-radius: 50%; border: 0; background: var(--accent-electric); }
.iso-tetrapod .iso-top { border-radius: 3px; box-shadow: -13px 12px 0 -7px var(--edge), 13px 12px 0 -7px var(--edge), 0 25px 0 -7px var(--edge); }
.iso-wave .iso-top, .iso-wave .iso-left, .iso-wave .iso-right { height: 3px; border: 0; background: var(--primary-deep); }
.iso-wave .iso-left { top: 20px; background: var(--accent-warm); }
.iso-wave .iso-right { top: 32px; background: var(--primary-deep); }
.iso-column { height: 64px; }
.iso-column .iso-left { height: 34px; }
.iso-column .iso-right { height: 48px; }
.iso-wire .iso-top, .iso-wire .iso-left, .iso-wire .iso-right { background: transparent; }

@keyframes iso-float { 0%, 100% { opacity: 0.32; } 50% { opacity: 0.7; } }
.iso-01 { top: 18%; right: 12%; animation-duration: 8s; }
.iso-02 { top: 62%; left: 7%; animation-duration: 11s; animation-delay: -2s; }
.iso-03 { bottom: 11%; right: 29%; animation-duration: 9s; animation-delay: -5s; }
.iso-04 { top: 16%; right: 16%; animation-duration: 12s; }
.iso-05 { bottom: 20%; left: 9%; animation-duration: 10s; animation-delay: -4s; }
.iso-06 { top: 19%; left: 14%; animation-duration: 9s; animation-delay: -1s; }
.iso-07 { bottom: 18%; left: 31%; animation-duration: 12s; animation-delay: -7s; }
.iso-08 { top: 61%; right: 14%; animation-duration: 10s; animation-delay: -3s; }
.iso-09 { top: 20%; right: 20%; animation-duration: 8s; animation-delay: -6s; }
.iso-10 { bottom: 25%; right: 11%; animation-duration: 11s; animation-delay: -2s; }
.iso-11 { top: 48%; left: 18%; animation-duration: 12s; animation-delay: -1s; }
.iso-12 { bottom: 16%; right: 24%; animation-duration: 9s; animation-delay: -5s; }
.iso-13 { top: 18%; right: 9%; animation-duration: 10s; animation-delay: -8s; }
.iso-14 { bottom: 12%; left: 38%; animation-duration: 11s; animation-delay: -4s; }
.iso-15 { top: 21%; left: 12%; animation-duration: 8s; animation-delay: -2s; }
.iso-16 { bottom: 29%; right: 17%; animation-duration: 12s; animation-delay: -6s; }

@media (max-width: 900px) {
  .broadcast-section { min-height: 78vh; }
  .broadcast-right .broadcast-content { margin-right: -4vw; padding-left: 1rem; }
  .grid-content { grid-template-columns: repeat(4, 1fr); column-gap: 0.7rem; }
  .fragment-block:nth-child(n), .compact-grid .fragment-block:nth-child(n) { grid-column: span 2; }
  .fragment-block:nth-child(even) { transform: translateY(1rem); }
}

@media (max-width: 560px) {
  .broadcast-section { min-height: 66vh; padding: 3rem 1rem; }
  .broadcast-left .broadcast-content, .broadcast-right .broadcast-content { margin-left: -4vw; margin-right: 0; padding-left: 0; text-align: left; }
  .broadcast-headline { font-size: clamp(3.2rem, 18vw, 5rem); max-width: 8ch; }
  .fragment-grid { padding: 4rem 1rem; }
  .grid-content { grid-template-columns: repeat(2, 1fr); }
  .fragment-block:nth-child(n), .compact-grid .fragment-block:nth-child(n) { grid-column: span 1; min-height: 138px; padding: 1rem; }
  .iso-icon { width: 34px; height: 34px; }
}