:root {
  --ml-amber: #f59e0b;
  --ml-amber-dark: #d97706;
  --ml-stone: #1c1917;
  --ml-stone-soft: #292524;
  --ml-emerald: #059669;
  --ml-surface: #fafaf9;
  --ml-muted: #78716c;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", "Noto Sans TC", "Noto Sans SC", sans-serif;
  color: var(--ml-stone);
  background: var(--ml-surface);
}

body.font-tc {
  font-family: "Noto Sans TC", "Inter", sans-serif;
}

body.font-sc {
  font-family: "Noto Sans SC", "Inter", sans-serif;
}

body.font-en {
  font-family: "Inter", "Noto Sans TC", sans-serif;
}

.hero-glow {
  background:
    radial-gradient(ellipse 80% 50% at 70% -10%, rgba(245, 158, 11, 0.28), transparent 55%),
    radial-gradient(ellipse 60% 40% at 10% 80%, rgba(245, 158, 11, 0.12), transparent 50%),
    linear-gradient(165deg, #1c1917 0%, #292524 45%, #1c1917 100%);
}

.texture-dots {
  background-image: radial-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 22px 22px;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.tv-bezel {
  background: linear-gradient(145deg, #44403c, #1c1917 40%, #0c0a09);
  box-shadow:
    0 40px 80px -20px rgba(0, 0, 0, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.menu-screen {
  background: linear-gradient(180deg, #292524 0%, #1c1917 100%);
}

.pulse-dot {
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.9); }
}

.float-soft {
  animation: float-soft 6s ease-in-out infinite;
}

@keyframes float-soft {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  background: var(--ml-amber);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.nav-link:hover::after,
.nav-link.is-active::after {
  transform: scaleX(1);
}

.faq-item[open] summary .faq-chevron {
  transform: rotate(180deg);
}

.lang-btn.is-active {
  background: var(--ml-amber);
  color: #1c1917;
}

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .float-soft,
  .pulse-dot {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}