:root {
  color-scheme: dark;
  --red: #d10f1c;
  --white: #f5f5f3;
  --muted: #a6a6a2;
  --black: #050505;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  background: var(--black);
  overflow: hidden;
}

body {
  font-family: Inter, "Helvetica Neue", Arial, sans-serif;
  color: var(--white);
}

button {
  font: inherit;
}

.stage {
  position: relative;
  display: grid;
  min-height: 100svh;
  isolation: isolate;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 47%, rgba(52, 52, 52, 0.2), transparent 46%),
    var(--black);
}

.stage::before,
.stage::after {
  position: absolute;
  z-index: 3;
  content: "";
  pointer-events: none;
}

.stage::before {
  inset: 0;
  opacity: 0.14;
  background-image: linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 100% 4px;
  mix-blend-mode: screen;
}

.stage::after {
  top: 0;
  left: clamp(1.25rem, 5vw, 5rem);
  width: 1px;
  height: 100%;
  background: linear-gradient(transparent, rgba(209, 15, 28, 0.75), transparent);
  opacity: 0.45;
}

.intro {
  position: absolute;
  z-index: 0;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--black);
  transition: opacity 1.1s ease, transform 1.7s cubic-bezier(0.2, 0.7, 0.2, 1), filter 1.1s ease;
}

.shade {
  position: absolute;
  z-index: 1;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  background:
    radial-gradient(circle at 50% 44%, transparent 10%, rgba(5, 5, 5, 0.36) 58%, rgba(5, 5, 5, 0.9) 100%),
    linear-gradient(180deg, rgba(5, 5, 5, 0.08), rgba(5, 5, 5, 0.68));
  transition: opacity 1.1s ease;
}

.announcement {
  z-index: 2;
  place-self: center;
  width: min(100%, 52rem);
  padding: 2rem;
  text-align: center;
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity 0.9s ease 0.15s, transform 0.9s cubic-bezier(0.2, 0.75, 0.2, 1) 0.15s;
}

.eyebrow {
  margin: 0 0 1.35rem;
  color: var(--muted);
  font-size: clamp(0.78rem, 1vw, 0.95rem);
  font-weight: 600;
  letter-spacing: 0.34em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(5.5rem, 8.2vw, 9.6rem);
  font-weight: 780;
  line-height: 0.75;
  letter-spacing: -0.065em;
  text-transform: uppercase;
}

h1 span {
  color: transparent;
  -webkit-text-stroke: clamp(1px, 0.12vw, 2px) var(--white);
}

.rule {
  width: min(16rem, 42vw);
  height: 0.25rem;
  margin: clamp(1.8rem, 4vh, 3rem) auto 1.1rem;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.85s cubic-bezier(0.2, 0.75, 0.2, 1) 0.65s;
}

.soon {
  margin: 0;
  color: var(--muted);
  font-size: clamp(0.85rem, 1.15vw, 1.05rem);
  font-weight: 500;
  letter-spacing: 0.42em;
  text-transform: uppercase;
}

.sound {
  position: absolute;
  z-index: 5;
  top: clamp(1rem, 3vw, 2rem);
  right: clamp(1rem, 3vw, 2rem);
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 2.75rem;
  padding: 0.7rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.78);
  background: rgba(5, 5, 5, 0.54);
  backdrop-filter: blur(0.7rem);
  cursor: pointer;
  transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.sound:hover,
.sound:focus-visible {
  color: var(--white);
  border-color: rgba(209, 15, 28, 0.9);
  background: rgba(22, 22, 22, 0.82);
}

.sound:focus-visible {
  outline: 2px solid var(--white);
  outline-offset: 3px;
}

.sound svg {
  width: 1.15rem;
  height: 1.15rem;
  fill: currentColor;
}

.sound span {
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

footer {
  position: absolute;
  z-index: 4;
  left: clamp(1.25rem, 5vw, 5rem);
  bottom: clamp(1.2rem, 4vw, 2.5rem);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: rgba(255, 255, 255, 0.54);
  font-size: clamp(0.75rem, 1vw, 0.9rem);
  letter-spacing: 0.08em;
}

.signal {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 1rem rgba(209, 15, 28, 0.75);
}

.stage.is-ready .intro {
  opacity: 0.38;
  filter: saturate(0.72) brightness(0.62);
  transform: scale(1.035);
}

.stage.is-ready .shade,
.stage.is-ready .announcement {
  opacity: 1;
}

.final-layout {
  position: absolute;
  z-index: 2;
  inset: 0;
  display: grid;
  grid-template-columns: minmax(15rem, 0.82fr) minmax(32rem, 1.24fr) minmax(15rem, 0.82fr);
  align-items: center;
  gap: clamp(1rem, 2.4vw, 3.25rem);
  width: min(96vw, 112rem);
  min-height: 100svh;
  margin: 0 auto;
  padding: clamp(6.5rem, 10vh, 8rem) clamp(1.25rem, 3vw, 4rem) clamp(5rem, 8vh, 6.5rem);
  opacity: 0;
  transition: opacity 0.9s ease;
}

.stage.is-ready .final-layout {
  opacity: 1;
}

.sector {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-rows: auto minmax(15rem, 43vh) auto;
  align-items: center;
  min-width: 0;
  text-align: center;
  opacity: 0;
  transform: translateY(1rem);
  transition: opacity 0.9s ease 0.22s, transform 0.9s cubic-bezier(0.2, 0.75, 0.2, 1) 0.22s;
}

.stage.is-ready .sector {
  opacity: 1;
  transform: translateY(0);
}

.sector::before {
  position: absolute;
  z-index: -1;
  inset: 12% -5% 9%;
  content: "";
  pointer-events: none;
  opacity: 0.82;
  filter: blur(0.2rem);
}

.commercial::before {
  background: radial-gradient(ellipse at center, rgba(103, 19, 25, 0.54), rgba(38, 8, 10, 0.18) 52%, transparent 74%);
}

.defence::before {
  background: radial-gradient(ellipse at center, rgba(70, 85, 51, 0.52), rgba(25, 31, 19, 0.18) 52%, transparent 74%);
}

.sector header {
  min-height: 5.15rem;
}

.sector-kicker {
  margin: 0 0 0.35rem;
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.34em;
  opacity: 0.72;
  text-transform: uppercase;
}

.commercial .sector-kicker,
.commercial h2 {
  color: #df4a52;
}

.defence .sector-kicker,
.defence h2 {
  color: #96a77e;
}

h2 {
  margin: 0;
  font-size: clamp(1rem, 1.25vw, 1.45rem);
  font-weight: 720;
  line-height: 1.12;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.vehicle-art {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 15rem;
  isolation: isolate;
  -webkit-mask-image: radial-gradient(ellipse 65% 61% at center, #000 40%, rgba(0, 0, 0, 0.84) 58%, transparent 82%);
  mask-image: radial-gradient(ellipse 65% 61% at center, #000 40%, rgba(0, 0, 0, 0.84) 58%, transparent 82%);
}

.vehicle-art img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.commercial .vehicle-art {
  background: radial-gradient(ellipse at center, #641b21, #26090b 66%, transparent 82%);
}

.defence .vehicle-art {
  background: radial-gradient(ellipse at center, #4d613c, #1a2115 66%, transparent 82%);
}

.vehicle-base {
  opacity: 0.96;
  filter: contrast(1.2) saturate(1.16) brightness(1.16);
  mix-blend-mode: multiply;
}

.vehicle-detail {
  opacity: 0.22;
  filter: contrast(1.12) saturate(1.28) brightness(0.88);
  mix-blend-mode: screen;
}

.sector-copy {
  width: min(100%, 22rem);
  min-height: 3rem;
  margin: 0.4rem auto 0;
  color: rgba(245, 245, 243, 0.72);
  font-size: clamp(0.72rem, 0.78vw, 0.9rem);
  font-weight: 540;
  line-height: 1.45;
  letter-spacing: 0.015em;
}

.stage.is-ready .announcement {
  transform: translateY(0);
}

.stage.is-ready .rule {
  transform: scaleX(1);
}

.stage.is-replaying .announcement,
.stage.is-replaying .shade,
.stage.is-replaying .sector,
.stage.is-replaying .final-layout {
  opacity: 0;
}

.stage.is-replaying .intro {
  opacity: 1;
  filter: none;
  transform: none;
}

@media (max-width: 42rem) {
  html,
  body {
    overflow: auto;
  }

  .stage {
    min-height: 100svh;
    overflow: hidden;
  }

  .final-layout {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto auto auto;
    gap: 2rem;
    width: 100%;
    height: 100svh;
    min-height: 0;
    padding: 6.5rem 1rem 6rem;
    overflow-x: hidden;
    overflow-y: auto;
  }

  .announcement {
    grid-column: 1;
    grid-row: 1;
    width: 100%;
    padding: 1rem 0.5rem;
  }

  h1 {
    font-size: clamp(3.2rem, 13vw, 4.25rem);
    line-height: 0.8;
  }

  .sector {
    grid-column: 1;
    grid-row: auto;
    grid-template-rows: auto 17rem auto;
    width: 100%;
    max-width: 24rem;
    margin: 0 auto;
  }

  .commercial {
    grid-row: 2;
  }

  .defence {
    grid-row: 3;
  }

  .sector header {
    min-height: 4.25rem;
  }

  h2 {
    font-size: 0.82rem;
  }

  .sector-copy {
    font-size: 0.66rem;
  }

  footer {
    display: none;
  }

  .sound span {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }

  .sound {
    justify-content: center;
    width: 2.9rem;
    padding: 0;
  }

  footer {
    right: 1.25rem;
    justify-content: center;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}