:root {
  --bg-deep: #04162f;
  --bg-page: #07182f;
  --ink-light: #fbfbff;
  --muted-light: rgba(251, 251, 255, 0.78);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: clip;
  color: var(--ink-light);
  background: var(--bg-page);
  font-family: "Manrope", sans-serif;
}

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

.site-shell,
.hero-journey,
.hero-sticky,
.hero-stage {
  min-height: 100vh;
}

.hero-journey {
  background: linear-gradient(180deg, var(--bg-deep) 0%, #0a2346 68%, #0e3b1d 100%);
}

.hero-sticky {
  position: relative;
}

.site-nav {
  position: absolute;
  inset: 0 0 auto;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 20px 42px;
}

.campaign-mark {
  display: inline-flex;
  align-items: center;
}

.campaign-mark img {
  display: block;
  width: clamp(5.8rem, 10vw, 8.4rem);
  height: auto;
  filter: drop-shadow(0 12px 28px rgba(1, 8, 22, 0.34));
}

.hero-stage {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(4, 22, 47, 0.42) 0%, rgba(8, 40, 82, 0.18) 42%, rgba(6, 24, 49, 0.04) 68%, rgba(4, 19, 20, 0.44) 100%),
    radial-gradient(circle at 50% 14%, rgba(214, 238, 255, 0.32), transparent 34%),
    url("../assets/estadio-fondo-sharp.webp") center 56% / cover no-repeat;
}

.hero-stage::before {
  content: "";
  position: absolute;
  inset: auto -6% -5% -6%;
  height: 30vh;
  background:
    radial-gradient(circle at 50% 0%, rgba(142, 228, 113, 0.24), transparent 44%),
    linear-gradient(180deg, rgba(15, 63, 27, 0) 0%, rgba(22, 95, 39, 0.62) 100%);
  pointer-events: none;
  z-index: 1;
}

.hero-copy {
  position: absolute;
  left: 48px;
  bottom: 54px;
  z-index: 6;
  width: min(46rem, 44vw);
  will-change: transform, opacity;
}

.hero-kicker {
  margin: 0 0 14px;
  font-family: "Oswald", sans-serif;
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.hero-copy h1 {
  margin: 0;
  max-width: 9em;
  font-family: "League Spartan", sans-serif;
  font-size: clamp(2.35rem, 3.8vw, 3.95rem);
  font-weight: 800;
  line-height: 0.88;
  letter-spacing: -0.06em;
  text-transform: uppercase;
  text-shadow: 0 10px 26px rgba(1, 8, 22, 0.28);
}

.hero-description {
  margin: 18px 0 0;
  max-width: 26rem;
  color: var(--muted-light);
  font-size: 1rem;
  line-height: 1.6;
}

.hero-bus-wrap {
  position: absolute;
  inset: 0;
  z-index: 3;
  cursor: ew-resize;
}

.bus-glow,
.bus-reflection {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
}

.bus-glow {
  bottom: 11vh;
  width: min(72vw, 1120px);
  height: min(21vw, 300px);
  border-radius: 999px;
  background: radial-gradient(circle, rgba(173, 230, 255, 0.26) 0%, rgba(255, 255, 255, 0) 72%);
  filter: blur(16px);
}

.bus-reflection {
  bottom: 5.5vh;
  width: min(54vw, 840px);
  height: 52px;
  border-radius: 50%;
  background: rgba(8, 24, 45, 0.46);
  filter: blur(22px);
}

.bus-stack {
  position: absolute;
  left: 60.4%;
  bottom: -1vh;
  width: min(79vw, 1180px);
  aspect-ratio: 1.5;
  transform: translateX(-50%) translateY(1%) translateX(2%) scale(1.08) rotate(0.06deg);
  transform-origin: 57% 72%;
  will-change: transform, opacity;
}

.bus-state {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center center;
  opacity: 0;
  filter: drop-shadow(0 28px 60px rgba(0, 0, 0, 0.26));
  user-select: none;
  -webkit-user-drag: none;
  will-change: opacity;
  z-index: 3;
}

.bus-state.is-active {
  opacity: 1;
}

@media (max-width: 1100px) {
  .hero-copy {
    width: min(35rem, calc(100vw - 48px));
  }
}

@media (max-width: 860px) {
  .site-nav {
    padding: 18px 18px 0;
  }

  .campaign-mark img {
    width: 5.8rem;
  }

  .hero-copy {
    left: 18px;
    right: 18px;
    bottom: 34px;
    width: min(19.75rem, calc(100vw - 36px));
  }

  .hero-copy h1 {
    max-width: 9.1ch;
    font-size: clamp(2.35rem, 9.1vw, 3.15rem);
    line-height: 0.94;
  }

  .hero-description {
    max-width: 18rem;
    font-size: 0.9rem;
    line-height: 1.55;
  }

  .bus-stack {
    left: 72%;
    bottom: 15.5vh;
    width: min(134vw, 680px);
    transform: translateX(-50%) translateY(3%) translateX(5%) scale(1.1) rotate(0.08deg);
    transform-origin: 56% 72%;
  }
}

@media (max-width: 560px) {
  .campaign-mark img {
    width: 5.3rem;
  }

  .hero-copy {
    width: min(17.75rem, calc(100vw - 32px));
    bottom: 20px;
  }

  .hero-kicker {
    margin-bottom: 10px;
    font-size: 0.68rem;
    letter-spacing: 0.14em;
  }

  .hero-copy h1 {
    max-width: 8.8ch;
    font-size: clamp(2rem, 8vw, 2.7rem);
  }

  .hero-description {
    max-width: 14.5rem;
    font-size: 0.86rem;
  }

  .bus-stack {
    left: 76%;
    bottom: 16.8vh;
    width: min(132vw, 572px);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}