:root {
  --primary: #bdf906;
  --bg: #000;
  --text: #fff;
  --text-dim: rgba(255, 255, 255, 0.8);
  --text-muted: rgba(255, 255, 255, 0.6);
  --border: rgba(255, 255, 255, 0.1);
  --card-bg: rgba(255, 255, 255, 0.05);
  --card-hover: rgba(255, 255, 255, 0.1);
}

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

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  padding-bottom: 7rem;
}

a {
  color: inherit;
  text-decoration: none;
}

.max-w-md {
  max-width: 28rem;
  margin: 0 auto;
}

.px-4 { padding-left: 1rem; padding-right: 1rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.pt-8 { padding-top: 2rem; }
.pb-4 { padding-bottom: 1rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-24 { margin-bottom: 6rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }

.flex { display: flex; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.flex-1 { flex: 1; }

.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }

.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }
.tracking-tight { letter-spacing: -0.025em; }
.tracking-widest { letter-spacing: 0.1em; }
.uppercase { text-transform: uppercase; }
.text-center { text-align: center; }
.text-right { text-align: right; }

.primary-text { color: var(--primary); }
.dim-text { color: var(--text-dim); }
.muted-text { color: var(--text-muted); }

.rounded-xl { border-radius: 0.75rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-full { border-radius: 9999px; }

.border { border: 1px solid var(--border); }
.bg-card { background-color: var(--card-bg); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: 1rem;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}

.btn-primary {
  background-color: var(--primary);
  color: #111;
}

.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
}

.btn-outline {
  border: 1px solid var(--border);
  background-color: var(--card-bg);
  color: var(--text);
}

.btn-outline:hover {
  background-color: var(--card-hover);
}

.btn-small {
  padding: 0.5rem 0.75rem;
  border-radius: 0.75rem;
  font-size: 0.875rem;
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--border);
  background-color: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.logo-img {
  height: 2rem;
  width: 2rem;
  border-radius: 9999px;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Hero */
.hero-video-wrapper {
  width: 100%;
  margin: 0 auto;
  border-radius: 1rem;
  overflow: hidden;
  pointer-events: none;
  user-select: none;
}

.hero-video-wrapper video,
.hero-video-wrapper img {
  width: 100%;
  border-radius: 1rem;
  display: block;
}

/* Cards */
.card {
  border-radius: 1rem;
  padding: 1rem;
  border: 1px solid var(--border);
  background-color: var(--card-bg);
}

.grid-1 {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.75rem;
}

/* Range Input Formatter */
input[type=range] {
  -webkit-appearance: none;
  width: 100%;
  background: transparent;
  margin: 10px 0;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  height: 20px;
  width: 20px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  margin-top: -8px;
}
input[type=range]::-webkit-slider-runnable-track {
  width: 100%;
  height: 4px;
  cursor: pointer;
  background: var(--card-bg);
  border-radius: 2px;
}

/* Checkbox */
input[type=checkbox] {
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

/* Carousel */
.carousel-wrapper {
  position: relative;
  margin-top: 0.75rem;
}

.carousel {
  display: flex;
  overflow-x: auto;
  gap: 0.75rem;
  padding-bottom: 1rem;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
}
.carousel::-webkit-scrollbar {
  display: none;
}

.carousel-slide {
  flex-shrink: 0;
  width: 100%;
  border-radius: 1rem;
  overflow: hidden;
  border: 1px solid var(--border);
  scroll-snap-align: center;
  background-color: white;
}
@media (min-width: 640px) {
  .carousel-slide {
    width: 80%;
  }
}

.carousel-slide img {
  width: 100%;
  height: 16rem;
  object-fit: contain;
  border-radius: 1rem;
}

.carousel-nav {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
}

.carousel-btn {
  pointer-events: auto;
  background-color: rgba(0, 0, 0, 0.4);
  color: white;
  border-radius: 9999px;
  padding: 0.25rem;
  border: none;
  cursor: pointer;
  backdrop-filter: blur(4px);
  transition: opacity 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.carousel-nav-left { margin-left: 0.5rem; }
.carousel-nav-right { margin-right: 0.5rem; }

/* FAQ */
details {
  border-radius: 1rem;
  border: 1px solid var(--border);
  background-color: var(--card-bg);
  padding: 1rem;
}
summary {
  font-weight: 700;
  cursor: pointer;
  outline: none;
}

/* FAB - Floating Action Button */
.fab {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  z-index: 50;
  border-radius: 9999px;
  padding: 0.75rem 1.25rem;
  font-weight: 800;
  background-color: var(--primary);
  color: #111;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  transform: translateY(150%);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.fab.visible {
  transform: translateY(0);
  opacity: 1;
}

/* Animations */
.fade-in {
  animation: fadeIn 0.8s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}
.pulse-anim {
  animation: pulse 2s infinite ease-in-out;
}

ul {
  list-style: none;
}