:root {
  --fade: 1.2s;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  background: #000;
  color: #fff;
  font-family: "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;
  overflow: hidden;
}

/* --- Video background --- */
.bg {
  position: fixed;
  inset: 0;
  z-index: 0;
}

.bg__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity var(--fade) ease-in-out;
}

.bg__video.is-active {
  opacity: 1;
}

/* Darkening layer so foreground text stays readable. */
.overlay {
  position: fixed;
  inset: 0;
  z-index: 1;
  background: radial-gradient(
    ellipse at center,
    rgba(0, 0, 0, 0.25) 0%,
    rgba(0, 0, 0, 0.65) 100%
  );
  pointer-events: none;
}

/* --- Foreground content --- */
.content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  padding: 1.5rem;
}

.title {
  margin: 0;
  font-size: clamp(2.5rem, 12vw, 9rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.6);
  animation: rise 1s ease-out both;
}

.tagline {
  margin: 0.75rem 0 0;
  font-size: clamp(0.9rem, 2.5vw, 1.4rem);
  font-weight: 300;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  opacity: 0.85;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
  animation: rise 1s ease-out 0.15s both;
}

/* "Dimmy" link in the tagline: bold and white in every state, orange on hover. */
.tagline a,
.tagline a:link,
.tagline a:visited,
.tagline a:active,
.tagline a:focus {
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  transition: color 0.2s ease;
}

.tagline a:hover {
  color: orange;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- Mute toggle --- */
.mute-toggle {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 3;
  width: 3rem;
  height: 3rem;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 1.25rem;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: background 0.2s ease, transform 0.1s ease;
}

.mute-toggle:hover {
  background: rgba(255, 255, 255, 0.25);
}

.mute-toggle:active {
  transform: scale(0.92);
}

@media (prefers-reduced-motion: reduce) {
  .bg__video {
    transition: none;
  }
  .title,
  .tagline {
    animation: none;
  }
}