:root {
  --oq-midnight: #081522;
  --oq-near-black: #050912;
  --oq-electric-cyan: #00e5ff;
  --oq-emerald: #00d68f;
  --oq-violet: #6d6bff;
  --oq-soft-white: #e6ecf5;
  --oq-harbour-blue: #0a2a3d;
  --oq-lighthouse: #f5fbff;
}

body {
  background:
    radial-gradient(circle at 14% 8%, rgba(0, 229, 255, 0.14), transparent 28rem),
    radial-gradient(circle at 82% 12%, rgba(109, 107, 255, 0.13), transparent 30rem),
    radial-gradient(circle at 50% 76%, rgba(0, 214, 143, 0.08), transparent 34rem),
    linear-gradient(180deg, var(--oq-near-black) 0%, var(--oq-midnight) 48%, #041019 100%);
}

.city-grid {
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  background-image:
    linear-gradient(118deg, transparent 0 48%, rgba(0, 229, 255, 0.052) 48.2% 48.7%, transparent 49%),
    linear-gradient(62deg, transparent 0 52%, rgba(230, 236, 245, 0.04) 52.2% 52.8%, transparent 53%),
    radial-gradient(circle at 18% 30%, rgba(0, 229, 255, 0.08) 0 2px, transparent 3px),
    radial-gradient(circle at 76% 44%, rgba(0, 214, 143, 0.07) 0 2px, transparent 3px),
    linear-gradient(rgba(230, 236, 245, 0.038) 1px, transparent 1px),
    linear-gradient(90deg, rgba(230, 236, 245, 0.032) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 320px 260px, 280px 220px, 92px 92px, 92px 92px;
  mask-image: linear-gradient(to bottom, black, transparent 76%);
  animation: oq-shipping-lanes 56s linear infinite;
}

.city-glow {
  position: fixed;
  inset: auto -10% 0;
  z-index: -2;
  height: 34vh;
  pointer-events: none;
  background:
    linear-gradient(to top, rgba(0, 229, 255, 0.13), transparent 72%),
    repeating-linear-gradient(0deg, rgba(230, 236, 245, 0.035) 0 1px, transparent 1px 18px),
    linear-gradient(180deg, transparent, rgba(4, 16, 25, 0.82));
  filter: blur(0.4px);
  opacity: 0.76;
}

.city-glow::before {
  position: absolute;
  inset: 18% 8% auto;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.38), rgba(245, 251, 255, 0.48), rgba(0, 214, 143, 0.22), transparent);
  box-shadow: 0 0 34px rgba(0, 229, 255, 0.28);
  animation: oq-harbour-reflection 18s ease-in-out infinite;
}

.cityscape-background {
  position: fixed;
  inset: auto 0 0;
  z-index: -1;
  height: min(58vh, 560px);
  overflow: hidden;
  pointer-events: none;
  opacity: 0.9;
  background:
    radial-gradient(ellipse at 50% 100%, rgba(0, 229, 255, 0.22), transparent 54%),
    radial-gradient(ellipse at 13% 84%, rgba(0, 214, 143, 0.09), transparent 30%),
    radial-gradient(ellipse at 88% 82%, rgba(109, 107, 255, 0.1), transparent 30%),
    linear-gradient(to top, rgba(2, 12, 21, 0.98), rgba(6, 24, 38, 0.58), transparent);
  mask-image: linear-gradient(to top, black 0%, black 74%, transparent 100%);
}

.cityscape-background::before,
.cityscape-background::after {
  position: absolute;
  content: "";
  pointer-events: none;
}

.cityscape-background::before {
  inset: auto -8% 0;
  height: 76%;
  background:
    linear-gradient(90deg, transparent 0 7%, rgba(20, 32, 44, 0.88) 7.2% 8.2%, transparent 8.4% 18%, rgba(20, 32, 44, 0.78) 18.2% 19%, transparent 19.2% 36%, rgba(20, 32, 44, 0.86) 36.2% 37.2%, transparent 37.4% 58%, rgba(20, 32, 44, 0.78) 58.2% 59%, transparent 59.2% 78%, rgba(20, 32, 44, 0.88) 78.2% 79.2%, transparent 79.4%),
    linear-gradient(90deg, transparent 0 12%, rgba(0, 229, 255, 0.18) 12.1% 12.4%, transparent 12.6% 32%, rgba(0, 229, 255, 0.14) 32.1% 32.4%, transparent 32.6% 66%, rgba(0, 214, 143, 0.13) 66.1% 66.4%, transparent 66.6%),
    repeating-radial-gradient(ellipse at 50% 100%, rgba(230, 236, 245, 0.05) 0 1px, transparent 1px 34px),
    repeating-linear-gradient(0deg, transparent 0 28px, rgba(230, 236, 245, 0.038) 28px 29px, transparent 29px 56px),
    linear-gradient(to top, rgba(4, 13, 22, 0.98), rgba(8, 21, 34, 0.36), transparent);
  animation: oq-water-breathe 24s ease-in-out infinite;
}

.cityscape-background::after {
  left: 6%;
  right: 6%;
  bottom: 27%;
  height: 86px;
  background:
    linear-gradient(100deg, transparent 0 10%, rgba(29, 41, 54, 0.92) 10.4% 25%, transparent 25.4% 32%, rgba(29, 41, 54, 0.82) 32.4% 45%, transparent 45.4% 56%, rgba(29, 41, 54, 0.9) 56.4% 75%, transparent 75.4%),
    linear-gradient(90deg, transparent, rgba(230, 236, 245, 0.16), rgba(0, 229, 255, 0.34), rgba(230, 236, 245, 0.12), transparent);
  clip-path: polygon(0 58%, 9% 58%, 9% 36%, 23% 36%, 23% 58%, 38% 58%, 38% 40%, 52% 40%, 52% 58%, 67% 58%, 67% 34%, 81% 34%, 81% 58%, 100% 58%, 100% 64%, 0 64%);
  filter: drop-shadow(0 0 26px rgba(0, 229, 255, 0.16));
  animation: oq-shipping-lane-glide 22s ease-in-out infinite;
}

.bridge-silhouette,
.bridge-cable,
.bridge-tower,
.bridge-light,
.boulevard {
  display: none !important;
}

.skyline {
  position: absolute;
  inset: auto 0 0;
  display: block;
  height: 76%;
}

.building {
  position: absolute;
  display: block;
  pointer-events: none;
}

.building.one,
.building.five,
.building.eight {
  z-index: 2;
  border: 1px solid rgba(230, 236, 245, 0.1);
  background:
    repeating-linear-gradient(90deg, rgba(230, 236, 245, 0.12) 0 2px, transparent 2px 18px),
    linear-gradient(180deg, rgba(31, 43, 56, 0.92), rgba(10, 18, 29, 0.96));
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.building.one {
  left: 5%;
  right: 7%;
  bottom: 25%;
  height: 16px;
  border-radius: 999px;
}

.building.five {
  left: 49%;
  bottom: 25%;
  width: 18px;
  height: 144px;
  border-radius: 999px 999px 0 0;
}

.building.eight {
  right: 17%;
  bottom: 25%;
  width: 16px;
  height: 118px;
  border-radius: 999px 999px 0 0;
}

.building.two,
.building.six,
.building.seven {
  z-index: 3;
  height: 34px;
  border: 1px solid rgba(230, 236, 245, 0.16);
  border-radius: 999px 22px 24px 999px;
  background:
    linear-gradient(90deg, rgba(230, 236, 245, 0.2), rgba(0, 229, 255, 0.16) 16%, rgba(10, 22, 36, 0.92) 72%),
    rgba(8, 15, 27, 0.94);
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.14), 0 16px 42px rgba(0, 0, 0, 0.26);
}

.building.two::before,
.building.six::before,
.building.seven::before {
  position: absolute;
  left: 24px;
  top: 7px;
  width: 36px;
  height: 13px;
  content: "";
  border-radius: 4px;
  background:
    repeating-linear-gradient(90deg, rgba(0, 229, 255, 0.28) 0 6px, rgba(230, 236, 245, 0.12) 6px 12px),
    rgba(230, 236, 245, 0.09);
}

.building.two::after,
.building.six::after {
  position: absolute;
  right: 18px;
  top: -9px;
  width: 18px;
  height: 24px;
  content: "";
  border-radius: 5px 5px 2px 2px;
  background: linear-gradient(180deg, rgba(245, 251, 255, 0.24), rgba(0, 229, 255, 0.1));
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.18);
}

.building.two {
  left: 18%;
  bottom: 33%;
  width: 168px;
  transform: rotate(-2deg);
}

.building.six {
  right: 21%;
  bottom: 38%;
  width: 132px;
  height: 30px;
  transform: rotate(2deg);
  opacity: 0.88;
}

.building.seven {
  left: 58%;
  bottom: 21%;
  width: 92px;
  height: 22px;
  transform: rotate(-7deg);
  opacity: 0.78;
}

.building.three,
.building.four {
  z-index: 3;
  width: 58px;
  height: 90px;
  border-left: 4px solid rgba(0, 229, 255, 0.22);
  border-bottom: 4px solid rgba(0, 229, 255, 0.18);
  opacity: 0.78;
}

.building.three::before,
.building.four::before {
  position: absolute;
  left: -3px;
  top: 12px;
  width: 76px;
  height: 3px;
  content: "";
  background: linear-gradient(90deg, rgba(0, 229, 255, 0.5), transparent);
  transform: rotate(-12deg);
  transform-origin: left center;
  box-shadow: 0 0 18px rgba(0, 229, 255, 0.18);
}

.building.three::after,
.building.four::after {
  position: absolute;
  right: -19px;
  top: 15px;
  width: 1px;
  height: 34px;
  content: "";
  background: rgba(230, 236, 245, 0.28);
}

.building.three { left: 33%; bottom: 25%; }
.building.four { right: 28%; bottom: 25%; transform: scaleX(-1); }

.building.nine {
  right: 8%;
  bottom: 27%;
  z-index: 4;
  width: 42px;
  height: 92px;
  border: 1px solid rgba(230, 236, 245, 0.18);
  border-radius: 18px 18px 7px 7px;
  background:
    linear-gradient(90deg, transparent 38%, rgba(0, 229, 255, 0.26) 39% 61%, transparent 62%),
    repeating-linear-gradient(0deg, rgba(245, 251, 255, 0.22) 0 12px, rgba(7, 11, 20, 0.54) 12px 20px),
    linear-gradient(180deg, rgba(245, 251, 255, 0.16), rgba(0, 229, 255, 0.09), rgba(7, 11, 20, 0.8));
  box-shadow: 0 0 34px rgba(0, 229, 255, 0.2);
}

.building.nine::before {
  position: absolute;
  left: 50%;
  top: -18px;
  width: 56px;
  height: 20px;
  content: "";
  border-radius: 999px;
  background: rgba(245, 251, 255, 0.18);
  box-shadow: 0 0 24px rgba(245, 251, 255, 0.44), 0 0 62px rgba(0, 229, 255, 0.32);
  transform: translateX(-50%);
}

.building.nine::after {
  position: absolute;
  right: 38px;
  top: -8px;
  width: 250px;
  height: 68px;
  content: "";
  background: linear-gradient(270deg, rgba(245, 251, 255, 0.28), rgba(0, 229, 255, 0.08), transparent 78%);
  clip-path: polygon(100% 43%, 0 0, 0 100%, 100% 57%);
  opacity: 0.6;
  animation: oq-lighthouse-sweep-wide 16s ease-in-out infinite;
}

.city-streetlight {
  position: absolute;
  bottom: 22%;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--oq-lighthouse);
  box-shadow: 0 0 18px rgba(245, 251, 255, 0.75), 0 0 42px rgba(0, 229, 255, 0.4);
  animation: oq-harbour-light 7s ease-in-out infinite;
}

.city-streetlight::before {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 96px;
  height: 1px;
  content: "";
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(245, 251, 255, 0.48), transparent);
  transform: translateY(-50%);
  transform-origin: left center;
  animation: oq-lighthouse-sweep 14s ease-in-out infinite;
}

.city-streetlight.left-one { left: 13%; }
.city-streetlight.left-two { left: 29%; opacity: 0.72; animation-delay: -2s; }
.city-streetlight.right-one { right: 13%; animation-delay: -4s; }
.city-streetlight.right-two { right: 29%; opacity: 0.72; animation-delay: -6s; }

@keyframes oq-lighthouse-sweep-wide {
  0%, 100% { opacity: 0.22; transform: rotate(-5deg) scaleX(0.74); }
  48%, 56% { opacity: 0.62; transform: rotate(7deg) scaleX(1); }
}

@keyframes oq-shipping-lanes {
  0% { background-position: 0 0, 0 0, 0 0, 0 0, 0 0, 0 0; }
  100% { background-position: 0 0, 0 0, 42px 18px, -36px 22px, 92px 92px, 92px 92px; }
}

@keyframes oq-harbour-reflection {
  0%, 100% { opacity: 0.68; transform: translateX(-1.5%); }
  50% { opacity: 1; transform: translateX(1.5%); }
}

@keyframes oq-water-breathe {
  0%, 100% { opacity: 0.72; transform: translateY(0); }
  50% { opacity: 0.92; transform: translateY(5px); }
}

@keyframes oq-shipping-lane-glide {
  0%, 100% { opacity: 0.52; transform: translateX(-2%); }
  50% { opacity: 0.88; transform: translateX(2%); }
}

@keyframes oq-harbour-light {
  0%, 100% { opacity: 0.58; transform: scale(0.92); }
  48%, 56% { opacity: 1; transform: scale(1); }
}

@keyframes oq-lighthouse-sweep {
  0%, 100% { opacity: 0.24; transform: translateY(-50%) scaleX(0.52); }
  50% { opacity: 0.72; transform: translateY(-50%) scaleX(1); }
}

@media (max-width: 900px) {
  .cityscape-background {
    height: 42vh;
    opacity: 0.72;
  }
}

@media (max-width: 640px) {
  .cityscape-background {
    height: 34vh;
    opacity: 0.58;
  }

  .city-streetlight.left-one,
  .city-streetlight.right-one {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .city-grid,
  .city-glow::before,
  .cityscape-background::before,
  .cityscape-background::after,
  .building.nine::after,
  .city-streetlight,
  .city-streetlight::before {
    animation: none !important;
  }
}