:root {
  --color-text: #111;
  --color-accent: #58e7ff;
  --color-accent-tranh1 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 3rem);
  margin: 0 0 0.5em 0;
  line-height: 1.3;
  text-align: center;
  width: 100%;
  color: var(--color-text);
  position: relative;
  z-index: 1;
}8, 231, 255, 0.15);
  --font-body: Inter, system-ui, -apple-system, sans-serif;
  --font-display: "Playfair Display", serif;
}

html {
  height: 100vh;
  height: -webkit-fill-available;
  overflow: hidden;
  position: fixed;
  width: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: #000;
  min-height: 100vh;
  min-height: -webkit-fill-available;
  text-align: center;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
  overflow: hidden;
  position: fixed;
  width: 100%;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
  isolation: isolate;
}

.bg {
  position: fixed;
  inset: 0;
  background: url('hero.jpg') center/cover no-repeat;
  z-index: 0;
  filter: brightness(0.85);
  will-change: transform;
  backface-visibility: hidden;
  height: 100%;
  width: 100%;
}

.overlay {
  background: rgba(255,255,255,0.15);
  padding: clamp(1rem, 3vw, 2rem);
  width: min(95%, 800px);
  box-sizing: border-box;
  backdrop-filter: blur(4px) saturate(140%);
  -webkit-backdrop-filter: blur(4px) saturate(140%);
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  -webkit-overflow-scrolling: touch;
  touch-action: none;
  border: 1px solid var(--color-accent-transparent);
  overflow: visible;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.overlay.top {
  top: 0;
  margin-top: clamp(1rem, 3vw, 2rem);
}

.overlay.bottom {
  bottom: 0;
  margin-bottom: clamp(1rem, 3vw, 2rem);
}

h1 {
  font-family: "Playfair Display", serif;
  font-size: clamp(1.5rem, 4vw, 3rem);
  margin: 0 0 0.5em 0;
  line-height: 1.3;
  text-align: center;
  width: 100%;
  background: linear-gradient(135deg, #111 0%, #333 50%, #111 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
  position: relative;
  z-index: 1;
}

.strap {
  font-size: clamp(0.8rem, 1.6vw, 1.2rem);
  color: var(--color-accent);
  font-weight: 700;
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: clamp(0.4em, 1.5vw, 0.8em);
  white-space: nowrap;
  width: 100%;
  line-height: 1.6;
  letter-spacing: 0.01em;
  padding: 0.5em clamp(1rem, 3vw, 2rem);
  max-width: 100%;
}

.strap::-webkit-scrollbar {
  display: none;
}

.strap span:not(:last-child)::after {
  content: "|";
  margin-left: 0.5em;
  color: var(--color-accent-transparent);
}

.soon {
  font-family: var(--font-display);
  font-size: clamp(1rem, 3vw, 2rem);
  margin: 0 0 0.75em 0;
  line-height: 1.4;
  width: 100%;
}

footer {
  margin: 1em 0 0 0;
  font-size: clamp(0.7rem, 1.2vw, 0.8rem);
  color: #555;
  opacity: 0.9;
  width: 100%;
  line-height: 1.5;
}

@media (max-width: 480px) {
  .strap {
    font-size: 0.75rem;
    gap: 0.4em;
  }
}

@media (max-width: 375px) {
  .strap {
    font-size: 0.7rem;
    gap: 0.3em;
    padding: 0.5em 0.75rem;
  }
}

@media (max-width: 320px) {
  h1 {
    font-size: 1.8rem;
  }
  .soon {
    font-size: 1.2rem;
  }
}