:root {
  --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
  --color-text: #ffffff;
  --color-text-muted: rgba(255, 255, 255, 0.65);
  --overlay-dark: radial-gradient(circle at center, rgba(10, 12, 16, 0.35) 0%, rgba(5, 6, 8, 0.8) 100%);
  --glow-color: rgba(255, 255, 255, 0.25);
  --glow-intense: rgba(255, 255, 255, 0.45);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  width: 100%;
  height: 100%;
  min-height: 100vh;
  overflow: hidden;
  background-color: #050608;
  color: var(--color-text);
  font-family: var(--font-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.viewport-stage {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 100vh;
  display: grid;
  place-items: center;
  overflow: hidden;
  background-image: url('../assets/images/bg.jpg');
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
}

.backdrop-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--overlay-dark);
  backdrop-filter: blur(0.125rem);
  -webkit-backdrop-filter: blur(0.125rem);
  z-index: 1;
  pointer-events: none;
}

.ambient-spotlight {
  position: absolute;
  top: 36%;
  left: 50%;
  width: 45vw;
  height: 45vw;
  max-width: 35rem;
  max-height: 35rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
  transform: translate(calc(-50% + var(--shift-x, 0rem)), calc(-50% + var(--shift-y, 0rem)));
  pointer-events: none;
  z-index: 2;
  transition: transform 0.2s cubic-bezier(0.2, 0, 0.2, 1);
}

.brand-wrapper {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  margin-bottom: clamp(7rem, 20vh, 15rem);
  user-select: none;
  perspective: 50rem;
}

.brand-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem 1.5rem;
  opacity: 0;
  transform: translateY(1.2rem) scale(0.98) rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg));
  animation: enigmaReveal 2.2s cubic-bezier(0.16, 1, 0.3, 1) forwards 0.4s;
  cursor: default;
  transition: transform 0.2s ease-out;
}

.brand-logotype-row {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.brand-title {
  font-family: var(--font-primary);
  font-size: clamp(2.75rem, 8.5vw, 6.25rem);
  font-weight: 300;
  letter-spacing: clamp(0.4rem, 2.2vw, 1.25rem);
  line-height: 1;
  text-transform: lowercase;
  color: var(--color-text);
  margin: 0;
  padding: 0;
  text-shadow: 0 0 1.5rem var(--glow-color), 0 0 3.5rem rgba(255, 255, 255, 0.15);
  transition: letter-spacing 0.8s cubic-bezier(0.16, 1, 0.3, 1), text-shadow 0.8s ease;
}

.brand-card:hover .brand-title {
  letter-spacing: clamp(0.55rem, 2.8vw, 1.5rem);
  text-shadow: 0 0 2rem var(--glow-intense), 0 0 5rem rgba(255, 255, 255, 0.3);
}

.logo-last-letter {
  position: relative;
  display: inline-block;
  letter-spacing: 0;
}

.brand-tm-stamp {
  position: absolute;
  top: -0.3rem;
  left: calc(100% + clamp(0.25rem, 0.5vw, 0.45rem));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: clamp(0.95rem, 1.4vw, 1.25rem);
  height: clamp(0.95rem, 1.4vw, 1.25rem);
  border-radius: 50%;
  border: 0.075rem solid rgba(255, 255, 255, 0.4);
  font-family: var(--font-primary);
  font-size: clamp(0.35rem, 0.5vw, 0.45rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--color-text-muted);
  user-select: none;
  transition: border-color 0.4s ease, color 0.4s ease, box-shadow 0.4s ease, transform 0.4s ease;
}

.brand-card:hover .brand-tm-stamp {
  border-color: rgba(255, 255, 255, 0.9);
  color: #ffffff;
  box-shadow: 0 0 0.8rem rgba(255, 255, 255, 0.4);
  transform: translateY(-0.15rem);
}

.brand-slogan {
  font-family: var(--font-primary);
  font-size: clamp(0.6rem, 1vw, 0.8rem);
  font-weight: 300;
  letter-spacing: clamp(0.25rem, 0.8vw, 0.55rem);
  color: var(--color-text-muted);
  margin-top: clamp(0.75rem, 1.8vh, 1.25rem);
  padding-left: clamp(0.25rem, 0.8vw, 0.55rem);
  opacity: 0.75;
  text-shadow: 0 0 1rem rgba(255, 255, 255, 0.1);
  transition: opacity 0.5s ease, letter-spacing 0.5s ease, color 0.5s ease;
}

.brand-card:hover .brand-slogan {
  opacity: 1;
  color: var(--color-text);
  letter-spacing: clamp(0.35rem, 1vw, 0.65rem);
}

.aura-pulse {
  position: absolute;
  width: 0.25rem;
  height: 0.25rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.8);
  bottom: -1rem;
  opacity: 0;
  box-shadow: 0 0 0.75rem 0.15rem rgba(255, 255, 255, 0.6);
  animation: pulseDot 3s ease-in-out infinite 2.2s;
}

@keyframes enigmaReveal {
  0% {
    opacity: 0;
    filter: blur(0.75rem);
    transform: translateY(1.2rem) scale(0.96);
  }
  60% {
    filter: blur(0.15rem);
  }
  100% {
    opacity: 1;
    filter: blur(0);
    transform: translateY(0) scale(1);
  }
}

@keyframes pulseDot {
  0%, 100% {
    opacity: 0.2;
    transform: scale(0.8);
  }
  50% {
    opacity: 0.85;
    transform: scale(1.4);
    box-shadow: 0 0 1.2rem 0.25rem rgba(255, 255, 255, 0.8);
  }
}

@media (max-width: 48rem) {
  .brand-wrapper {
    padding: 1rem;
  }
}