:root {
  color-scheme: dark;
  --page-padding: clamp(1.25rem, 3vw, 3rem);
  --ink: #ffffff;
  --muted: rgba(255, 255, 255, 0.72);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  background: #050505;
}

body {
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  overflow: hidden;
}

button {
  color: inherit;
  font: inherit;
}

.teaser {
  position: relative;
  display: grid;
  grid-template-rows: 1fr auto;
  width: 100%;
  min-height: 100svh;
  padding: var(--page-padding);
  isolation: isolate;
}

.teaser__video,
.teaser__veil,
.teaser__texture {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.teaser__video {
  z-index: -3;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.06) brightness(0.72);
  opacity: 0.85;
  transform: scale(1);
  transform-origin: center;
}

.teaser__veil {
  z-index: -2;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.76) 0%, rgba(0, 0, 0, 0.3) 42%, rgba(0, 0, 0, 0.82) 100%),
    linear-gradient(90deg, rgba(0, 0, 0, 0.55), transparent 65%);
}

.teaser__texture {
  z-index: -1;
  background-image: radial-gradient(circle, rgba(255, 255, 255, 0.72) 0 1px, transparent 1.25px);
  background-size: 6px 6px;
  opacity: 0.55;
  mix-blend-mode: soft-light;
  -webkit-mask-image:
    radial-gradient(ellipse 85% 75% at 72% 45%, #000 0%, rgba(0, 0, 0, 0.78) 38%, transparent 78%);
  mask-image:
    radial-gradient(ellipse 85% 75% at 72% 45%, #000 0%, rgba(0, 0, 0, 0.78) 38%, transparent 78%);
}

.teaser__cuca-detail {
  position: absolute;
  z-index: 3;
  top: clamp(0.75rem, 2vw, 2rem);
  right: clamp(0.75rem, 2vw, 2rem);
  width: clamp(8rem, 17vw, 14rem);
  aspect-ratio: 3 / 2;
  background: url("assets/cuca-network-decorative.png?v=1") center / contain no-repeat;
  filter: grayscale(1) brightness(1.8);
  opacity: 0.18;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.62) 34%, #000 82%);
  mask-image: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.62) 34%, #000 82%);
}

.message__brand {
  width: clamp(3.2rem, 8vw, 7rem);
  margin-bottom: clamp(0.8rem, 1.5vw, 1.25rem);
  aspect-ratio: 1;
}

.message__mark {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: grayscale(1) brightness(0) invert(1) drop-shadow(0 0.25rem 1rem rgba(0, 0, 0, 0.25));
}

.footer p,
.message__eyebrow {
  margin: 0;
}

.message {
  position: relative;
  z-index: 4;
  align-self: start;
}

.message__eyebrow {
  margin-bottom: 0.75rem;
  color: var(--muted);
  font-size: clamp(0.72rem, 1vw, 0.9rem);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.message h1 {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(3.8rem, 10.5vw, 10rem);
  font-weight: 700;
  letter-spacing: -0.075em;
  line-height: 0.78;
  text-wrap: balance;
}

.footer {
  position: relative;
  z-index: 4;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 1.5rem;
  align-items: end;
  font-size: clamp(0.7rem, 0.9vw, 0.85rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer__identity {
  display: flex;
  gap: clamp(0.35rem, 0.75vw, 0.65rem);
  align-items: center;
}

.footer__signature {
  display: grid;
  gap: 0.25rem;
  width: max-content;
}

.footer__author {
  font-size: clamp(0.72rem, 0.9vw, 0.9rem);
  font-weight: 700;
  letter-spacing: 0.005em;
  white-space: nowrap;
}

.footer__author span {
  display: inline-block;
  margin: 0 0.3em;
  color: var(--muted);
}

.footer__coming {
  justify-self: start;
  color: var(--muted);
  font-size: clamp(0.58rem, 0.68vw, 0.7rem);
  letter-spacing: 0;
  white-space: nowrap;
}

.footer__contact {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  white-space: nowrap;
}

.sound {
  display: grid;
  width: 1.35rem;
  height: 1.35rem;
  padding: 0;
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.45);
  cursor: pointer;
  place-items: center;
  transition: color 180ms ease;
}

.sound:hover,
.sound:focus-visible,
.sound--active {
  color: var(--ink);
}

.sound__icon {
  width: 100%;
  height: 100%;
  overflow: visible;
  fill: currentColor;
}

.sound__waves {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  opacity: 0;
  transition: opacity 180ms ease;
}

.sound--active .sound__waves {
  opacity: 1;
}

.sound__label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.footer__divider {
  color: var(--muted);
}

.footer__email {
  color: var(--ink);
  letter-spacing: 0.035em;
  text-decoration: none;
  text-transform: lowercase;
}

.footer__email:hover {
  text-decoration: underline;
  text-underline-offset: 0.25em;
}

.sound:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 0.35rem;
}

.footer__year {
  color: var(--muted);
}

@media (max-width: 700px) {
  .teaser {
    padding: 1.15rem;
  }

  .teaser__video {
    object-position: center;
    width: 100%;
    height: 100%;
    opacity: 0.85;
  }

  .teaser__cuca-detail {
    width: clamp(6.5rem, 28vw, 9rem);
    opacity: 0.14;
  }

  .message h1 {
    font-size: clamp(3.5rem, 18vw, 6rem);
    line-height: 0.82;
  }

  .footer {
    grid-template-columns: 1fr auto;
    gap: 0.8rem;
  }

  .footer__identity {
    gap: 0.35rem;
  }

  .footer__author {
    font-size: 0.62rem;
  }

  .footer__coming {
    font-size: 0.52rem;
  }

  .footer__year {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .teaser__video {
    display: none;
  }
}