/* ============== HAMMERHEAD SEWER REHAB SECTION ============== */
.bluelight {
  --bl-bg: #04111c;
  --bl-panel: rgba(7, 22, 34, 0.88);
  --bl-line: rgba(109, 200, 255, 0.24);
  --bl-blue: #55c7ff;
  --bl-blue-strong: #12a8ff;
  --bl-cyan: #a8efff;
  --bl-paper: #f8fbff;
  --bl-muted: rgba(248, 251, 255, 0.72);
  --bl-dim: rgba(248, 251, 255, 0.52);
  --bl-warn: #e39b69;
  background:
    linear-gradient(135deg, rgba(4, 17, 28, 0.98), rgba(3, 9, 18, 0.98) 58%, rgba(2, 21, 40, 0.98)),
    repeating-linear-gradient(90deg, rgba(85, 199, 255, 0.05) 0 1px, transparent 1px 76px);
  color: var(--bl-paper);
  overflow: hidden;
  padding: clamp(72px, 9vw, 124px) 0;
  position: relative;
}

.bluelight::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, transparent 0 18%, rgba(85, 199, 255, 0.13) 30%, transparent 44%),
    linear-gradient(180deg, rgba(255,255,255,.04), transparent 26%, rgba(85,199,255,.05));
  pointer-events: none;
}

.bluelight::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 34%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(85,199,255,.65), transparent);
  box-shadow: 0 0 32px rgba(85,199,255,.72);
  pointer-events: none;
}

.bl-shell {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.bl-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.82fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
}

.bl-copy,
.bl-media-stack,
.bl-system,
.bl-decision,
.bl-process,
.bl-bottom-cta {
  min-width: 0;
}

.bl-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--bl-cyan);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .2em;
  text-transform: uppercase;
}

.bl-beam-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--bl-blue);
  box-shadow: 0 0 0 7px rgba(85,199,255,.12), 0 0 26px rgba(85,199,255,.9);
}

.bl-title {
  max-width: 820px;
  margin: 0;
  color: var(--bl-paper);
  font-family: var(--serif);
  font-size: clamp(56px, 9.2vw, 118px);
  letter-spacing: 0;
  line-height: .86;
  text-transform: uppercase;
  text-shadow: 0 0 44px rgba(18,168,255,.28);
}

.bl-lede {
  max-width: 710px;
  margin: 28px 0 0;
  color: var(--bl-muted);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.52;
}

.bl-hero-actions,
.bl-bottom-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.bl-primary,
.bl-secondary {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--bl-blue);
  padding: 12px 18px;
  color: var(--bl-paper);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .12em;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
}

.bl-primary {
  flex-direction: column;
  align-items: flex-start;
  background: var(--bl-blue);
  color: #04111c;
  box-shadow: 0 0 34px rgba(85,199,255,.24);
}

.bl-primary strong {
  font-family: var(--serif);
  font-size: 23px;
  line-height: 1;
  letter-spacing: 0;
}

.bl-primary-small {
  flex-direction: row;
  align-items: center;
}

.bl-secondary {
  background: rgba(255,255,255,.03);
}

.bl-primary:hover,
.bl-secondary:hover {
  background: var(--bl-paper);
  border-color: var(--bl-paper);
  color: #04111c;
}

.bl-proof-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 30px;
  border: 1px solid var(--bl-line);
  background: rgba(0,0,0,.18);
}

.bl-proof-strip div {
  padding: 16px;
  border-right: 1px solid var(--bl-line);
}

.bl-proof-strip div:last-child { border-right: 0; }
.bl-proof-strip strong {
  display: block;
  color: var(--bl-blue);
  font-family: var(--serif);
  font-size: 24px;
  line-height: 1;
}
.bl-proof-strip span {
  display: block;
  margin-top: 6px;
  color: var(--bl-dim);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.bl-watch-card {
  position: relative;
  display: block;
  min-height: 310px;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--bl-line);
  background: var(--bl-panel);
  color: var(--bl-paper);
  box-shadow: 0 24px 80px rgba(0, 0, 0, .32);
  overflow: hidden;
  text-decoration: none;
  isolation: isolate;
}

.bl-watch-card-main {
  transform: none;
}

.bl-watch-thumb {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.03);
  transition: transform .45s ease, filter .45s ease;
}

.bl-watch-card-blue .bl-watch-thumb {
  filter: saturate(1.02) contrast(1.06) brightness(.82);
}

.bl-watch-card-warm .bl-watch-thumb {
  filter: saturate(.98) contrast(1.08) brightness(.76);
}

.bl-watch-scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(145deg, rgba(4,17,28,.92) 0%, rgba(4,17,28,.34) 42%, rgba(4,17,28,.88) 100%),
    radial-gradient(circle at 76% 32%, rgba(85,199,255,.44), transparent 26%);
}

.bl-watch-card-warm .bl-watch-scrim {
  background:
    linear-gradient(145deg, rgba(16,12,9,.9) 0%, rgba(16,12,9,.22) 42%, rgba(4,17,28,.88) 100%),
    radial-gradient(circle at 76% 32%, rgba(227,155,105,.44), transparent 26%);
}

.bl-watch-top,
.bl-watch-bottom,
.bl-watch-play {
  position: absolute;
  z-index: 2;
}

.bl-watch-top {
  top: 14px;
  left: 14px;
  right: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--bl-cyan);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.bl-watch-top strong {
  flex: 0 0 auto;
  border: 1px solid rgba(255,255,255,.22);
  background: rgba(0,0,0,.32);
  padding: 6px 8px;
  color: var(--bl-paper);
  letter-spacing: .08em;
}

.bl-watch-play {
  top: 50%;
  left: 50%;
  width: 76px;
  height: 76px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255,255,255,.4);
  border-radius: 50%;
  background: rgba(85,199,255,.88);
  box-shadow: 0 0 0 10px rgba(85,199,255,.12), 0 0 44px rgba(85,199,255,.42);
  transform: translate(-50%, -50%);
  transition: transform .25s ease, background .25s ease;
}

.bl-watch-card-warm .bl-watch-play {
  background: rgba(227,155,105,.92);
  box-shadow: 0 0 0 10px rgba(227,155,105,.12), 0 0 44px rgba(227,155,105,.34);
}

.bl-play-triangle {
  width: 0;
  height: 0;
  margin-left: 5px;
  border-top: 14px solid transparent;
  border-bottom: 14px solid transparent;
  border-left: 22px solid #04111c;
}

.bl-watch-bottom {
  left: 18px;
  right: 18px;
  bottom: 18px;
  display: grid;
  gap: 6px;
}

.bl-watch-bottom span,
.bl-watch-bottom em {
  color: rgba(248,251,255,.68);
  font-family: var(--mono);
  font-size: 10px;
  font-style: normal;
  font-weight: 900;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.bl-watch-bottom strong {
  max-width: 440px;
  color: var(--bl-paper);
  font-family: var(--serif);
  font-size: clamp(28px, 3.7vw, 48px);
  line-height: .92;
  text-transform: uppercase;
  text-shadow: 0 0 24px rgba(0,0,0,.56);
}

.bl-watch-bottom em {
  width: max-content;
  margin-top: 6px;
  border-bottom: 1px solid currentColor;
  color: var(--bl-blue);
}

.bl-watch-card-warm .bl-watch-bottom em,
.bl-watch-card-warm .bl-watch-top {
  color: var(--bl-warn);
}

.bl-watch-card:hover .bl-watch-thumb,
.bl-watch-card:focus-visible .bl-watch-thumb {
  transform: scale(1.08);
}

.bl-watch-card:hover .bl-watch-play,
.bl-watch-card:focus-visible .bl-watch-play {
  background: var(--bl-paper);
  transform: translate(-50%, -50%) scale(1.05);
}

.bl-watch-card:focus-visible {
  outline: 3px solid var(--bl-paper);
  outline-offset: 4px;
}

.bl-equipment-mini {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 18px;
}

.bl-equipment-mini a {
  border: 1px solid var(--bl-line);
  background: rgba(255,255,255,.04);
  padding: 14px;
  color: inherit;
  text-decoration: none;
}

.bl-equipment-mini span,
.bl-source-link {
  color: var(--bl-dim);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.bl-equipment-mini strong {
  display: block;
  margin-top: 6px;
  color: var(--bl-blue);
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1;
  text-transform: uppercase;
}

.bl-tube-stage {
  margin-top: clamp(42px, 7vw, 86px);
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 28px;
  align-items: center;
  border: 1px solid var(--bl-line);
  background: rgba(0,0,0,.22);
  padding: clamp(18px, 3vw, 28px);
}

.bl-tube-copy h3,
.bl-decision h3,
.bl-process h3 {
  margin: 0;
  color: var(--bl-paper);
  font-family: var(--serif);
  font-size: clamp(28px, 4vw, 44px);
  line-height: .95;
  text-transform: uppercase;
}

.bl-tube-copy p,
.bl-decision-copy p,
.bl-process-head p,
.bl-bottom-cta p {
  margin: 10px 0 0;
  color: var(--bl-muted);
  line-height: 1.52;
}

.bl-tube {
  height: 132px;
  position: relative;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 999px;
  background:
    repeating-linear-gradient(100deg, rgba(255,255,255,.08) 0 10px, rgba(0,0,0,.16) 10px 20px),
    linear-gradient(90deg, rgba(75,64,56,.82), rgba(62,67,75,.88) 38%, rgba(8,36,60,.92) 54%, rgba(236,251,255,.94));
  box-shadow: inset 0 0 34px rgba(0,0,0,.7), 0 0 42px rgba(85,199,255,.18);
  overflow: hidden;
}

.bl-cured-path {
  position: absolute;
  left: 42%;
  right: 6%;
  top: 30px;
  bottom: 30px;
  border-radius: 999px;
  background: rgba(236,251,255,.9);
  box-shadow: inset 0 0 24px rgba(18,168,255,.2), 0 0 30px rgba(85,199,255,.48);
}

.bl-led-head {
  position: absolute;
  z-index: 2;
  top: 38px;
  left: 26%;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: var(--bl-blue);
  box-shadow: 0 0 28px rgba(85,199,255,1), 0 0 80px rgba(85,199,255,.75);
  animation: blScan 4s ease-in-out infinite;
}

.bl-led-head::after {
  content: "";
  position: absolute;
  inset: -18px -110px -18px 28px;
  background: linear-gradient(90deg, rgba(85,199,255,.38), transparent);
  filter: blur(8px);
}

.bl-tube-label {
  position: absolute;
  z-index: 3;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .15em;
  text-transform: uppercase;
}
.bl-tube-label-old { left: 28px; color: rgba(255,255,255,.65); }
.bl-tube-label-new { right: 34px; color: #04111c; }

@keyframes blScan {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(210px); }
}

.bl-systems {
  margin-top: clamp(42px, 7vw, 86px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.bl-system {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--bl-line);
  background: linear-gradient(180deg, rgba(8,32,52,.88), rgba(3,12,23,.92));
}

.bl-system-pb30 {
  background: linear-gradient(180deg, rgba(37,31,24,.9), rgba(3,12,23,.94));
  border-color: rgba(227,155,105,.32);
}

.bl-system-head {
  padding: clamp(18px, 3vw, 26px);
  border-bottom: 1px dashed var(--bl-line);
}

.bl-system-head span {
  color: var(--bl-blue);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .2em;
}
.bl-system-pb30 .bl-system-head span { color: var(--bl-warn); }

.bl-system-head h3 {
  margin: 10px 0 10px;
  color: var(--bl-paper);
  font-family: var(--serif);
  font-size: clamp(30px, 4vw, 50px);
  line-height: .95;
  text-transform: uppercase;
}

.bl-system-head p,
.bl-system-promise {
  margin: 0;
  color: var(--bl-muted);
  line-height: 1.52;
}

.bl-system-media {
  border-bottom: 1px dashed var(--bl-line);
}

.bl-system-media .bl-watch-card {
  min-height: 260px;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.bl-system-media .bl-watch-bottom strong {
  font-size: clamp(25px, 3vw, 38px);
}

.bl-system-promise {
  padding: 20px clamp(18px, 3vw, 26px) 0;
}

.bl-system-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 20px clamp(18px, 3vw, 26px);
  border-top: 1px solid var(--bl-line);
  border-left: 1px solid var(--bl-line);
}

.bl-system-stat {
  padding: 14px;
  border-right: 1px solid var(--bl-line);
  border-bottom: 1px solid var(--bl-line);
}

.bl-system-stat strong {
  display: block;
  color: var(--bl-blue);
  font-family: var(--serif);
  font-size: 25px;
  line-height: 1;
  text-transform: uppercase;
}
.bl-system-pb30 .bl-system-stat strong { color: var(--bl-warn); }
.bl-system-stat span {
  display: block;
  margin-top: 6px;
  color: var(--bl-dim);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.bl-source-link {
  margin: auto clamp(18px, 3vw, 26px) clamp(18px, 3vw, 26px);
  color: var(--bl-paper);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.bl-decision {
  margin-top: clamp(42px, 7vw, 86px);
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.bl-decision-table {
  border: 1px solid var(--bl-line);
  background: rgba(0,0,0,.18);
}

.bl-decision-row {
  display: grid;
  grid-template-columns: 1fr 220px 1.15fr;
  gap: 18px;
  padding: 18px;
  border-bottom: 1px solid var(--bl-line);
  align-items: center;
}
.bl-decision-row:last-child { border-bottom: 0; }
.bl-decision-row div,
.bl-decision-row span {
  color: var(--bl-muted);
}
.bl-decision-row strong {
  color: var(--bl-blue);
  font-family: var(--serif);
  font-size: 23px;
  line-height: 1;
  text-transform: uppercase;
}

.bl-process {
  margin-top: clamp(42px, 7vw, 78px);
  display: grid;
  grid-template-columns: minmax(0, .75fr) minmax(0, 1.25fr);
  gap: 28px;
  padding: clamp(20px, 4vw, 34px);
  border: 1px solid var(--bl-line);
  background: rgba(255,255,255,.04);
}

.bl-process-steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.bl-step {
  border: 1px solid rgba(255,255,255,.1);
  background: rgba(0,0,0,.16);
  padding: 16px;
  display: flex;
  gap: 14px;
}

.bl-step-n {
  color: var(--bl-blue);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 900;
}

.bl-step-t {
  color: var(--bl-paper);
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1;
  text-transform: uppercase;
}

.bl-step-d {
  margin-top: 6px;
  color: var(--bl-muted);
  font-size: 14px;
  line-height: 1.45;
}

.bl-bottom-cta {
  margin-top: clamp(42px, 7vw, 78px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 22px;
  align-items: center;
  border: 1px solid var(--bl-blue);
  background: linear-gradient(90deg, rgba(85,199,255,.16), rgba(255,255,255,.04));
  padding: clamp(20px, 3vw, 30px);
}

.bl-bottom-cta strong {
  color: var(--bl-paper);
  font-family: var(--serif);
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1;
  text-transform: uppercase;
}

.bl-bottom-actions {
  margin-top: 0;
  justify-content: flex-end;
}

.bl-attribution {
  margin-top: 16px;
  color: rgba(248,251,255,.48);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.5;
}

@media (prefers-reduced-motion: reduce) {
  .bl-led-head { animation: none; }
}

@media (max-width: 980px) {
  .bl-hero,
  .bl-tube-stage,
  .bl-systems,
  .bl-decision,
  .bl-process,
  .bl-bottom-cta {
    grid-template-columns: 1fr;
  }

  .bl-watch-card-main {
    transform: none;
  }

  .bl-process-steps,
  .bl-decision-row {
    grid-template-columns: 1fr;
  }

  .bl-bottom-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .bluelight {
    padding: 64px 0;
  }

  .bl-shell {
    width: min(100% - 28px, 1180px);
  }

  .bl-mark {
    align-items: flex-start;
    font-size: 10px;
    line-height: 1.45;
  }

  .bl-title {
    font-size: clamp(46px, 15vw, 70px);
  }

  .bl-proof-strip,
  .bl-equipment-mini,
  .bl-system-stats {
    grid-template-columns: 1fr;
  }

  .bl-watch-card,
  .bl-system-media .bl-watch-card {
    min-height: auto;
    aspect-ratio: 16 / 11;
  }

  .bl-watch-top {
    top: 12px;
    left: 12px;
    right: 12px;
    font-size: 9px;
    letter-spacing: .1em;
  }

  .bl-watch-play {
    width: 58px;
    height: 58px;
  }

  .bl-play-triangle {
    border-top-width: 11px;
    border-bottom-width: 11px;
    border-left-width: 17px;
  }

  .bl-watch-bottom {
    left: 14px;
    right: 14px;
    bottom: 14px;
  }

  .bl-watch-bottom strong {
    max-width: 100%;
    font-size: clamp(23px, 8.2vw, 31px);
    line-height: .96;
  }

  .bl-proof-strip div,
  .bl-equipment-mini a {
    border-right: 0;
    border-bottom: 1px solid var(--bl-line);
  }

  .bl-proof-strip div:last-child,
  .bl-equipment-mini a:last-child {
    border-bottom: 0;
  }

  .bl-primary,
  .bl-secondary {
    width: 100%;
  }

  .bl-tube {
    height: 104px;
  }

  .bl-led-head {
    width: 42px;
    height: 42px;
    top: 31px;
  }

  @keyframes blScan {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(100px); }
  }
}