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

html,
body {
  width: 100%;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  background-color: #0b0401;
  background-image:
    radial-gradient(ellipse 60% 45% at 0% 90%, rgba(220, 80, 10, 0.42) 0%, rgba(130, 40, 5, 0.18) 45%, transparent 75%),
    radial-gradient(ellipse 55% 50% at 100% 50%, rgba(195, 75, 10, 0.38) 0%, rgba(120, 35, 5, 0.14) 45%, transparent 75%),
    radial-gradient(ellipse 45% 45% at 15% 35%, rgba(160, 60, 10, 0.22) 0%, rgba(80, 25, 5, 0.08) 40%, transparent 70%),
    radial-gradient(circle at 50% 15%, rgba(110, 40, 10, 0.25) 0%, transparent 60%),
    radial-gradient(ellipse 70% 60% at 50% 50%, rgba(50, 18, 6, 0.65) 0%, #070301 90%);
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size: cover;
  color: #ffffff;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding-top: 34px;
  padding-bottom: 6px;
  flex-shrink: 0;
  animation: fadeInDown 0.8s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.header-logo {
  height: 36px;
  width: auto;
  object-fit: contain;
  display: block;
}

.header-divider {
  color: rgba(255, 255, 255, 0.35);
  font-size: 22px;
  font-weight: 200;
  line-height: 1;
  user-select: none;
}

.header-badge {
  height: 34px;
  width: auto;
  object-fit: contain;
  display: block;
}

.promo-container {
  flex: 1;
  width: 100%;
  max-width: 1200px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  padding: 0 24px;
  overflow: hidden;
}

.promo-card {
  flex: 1 1 380px;
  max-width: 480px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.promo-card-left {
  animation: slideInFromLeft 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.promo-card-right {
  animation: slideInFromRight 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.promo-card-left .model-img {
  animation: floatModelLeft 4.5s ease-in-out infinite;
}

.promo-card-right .model-img {
  animation: floatModelRight 5s ease-in-out infinite;
}

.model-wrapper {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.model-img {
  width: 100%;
  max-height: min(46vh, 360px);
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 15px 35px rgba(0, 0, 0, 0.6));
  transition: transform 0.3s ease;
  transform-origin: center center;
}

.btn-action {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  margin-top: -12px;
  z-index: 2;
  text-decoration: none;
  animation: pulseZoom 2s ease-in-out infinite;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), filter 0.25s ease;
}

.btn-img {
  height: 42px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  filter: drop-shadow(0 6px 14px rgba(0, 0, 0, 0.5));
}

.btn-action:active {
  transform: scale(0.96);
}

.footer-info {
  flex-shrink: 0;
  padding: 0 20px 32px;
  margin-top: -10px;
  text-align: center;
  max-width: 960px;
  animation: fadeInUp 0.9s cubic-bezier(0.22, 1, 0.36, 1) 0.15s both;
}

.footer-title {
  color: #ffc400;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.2px;
  margin-bottom: 8px;
  text-align: center;
}

.footer-desc {
  color: #ffffff;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.6;
  text-align: center;
  opacity: 0.94;
}

/* Keyframes */
@keyframes slideInFromLeft {
  0% { opacity: 0; transform: translateX(-80px); }
  100% { opacity: 1; transform: translateX(0); }
}

@keyframes slideInFromRight {
  0% { opacity: 0; transform: translateX(80px); }
  100% { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInDown {
  0% { opacity: 0; transform: translateY(-20px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  0% { opacity: 0; transform: translateY(20px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes pulseZoom {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}

@keyframes floatModelLeft {
  0%, 100% { transform: translateY(0) rotate(0deg) scale(1); }
  50% { transform: translateY(-6px) rotate(-1.2deg) scale(1.025); }
}

@keyframes floatModelRight {
  0%, 100% { transform: translateY(0) rotate(0deg) scale(1); }
  50% { transform: translateY(-6px) rotate(1.2deg) scale(1.025); }
}

/* Desktop layout constraint */
@media (min-width: 861px) {
  html,
  body {
    height: 100vh;
    overflow-y: hidden;
  }
}

/* Mobile responsive layout */
@media (max-width: 860px) {
  html,
  body {
    height: auto;
    min-height: 100vh;
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  body {
    justify-content: flex-start;
  }

  .header {
    padding-top: 24px;
    padding-bottom: 10px;
  }

  .promo-container {
    flex-wrap: wrap;
    gap: 30px;
    padding: 10px 16px;
    width: 100%;
    overflow: visible;
  }

  .promo-card {
    flex: 1 1 100%;
    max-width: 100%;
    width: 100%;
  }

  .promo-card-left {
    animation: fadeInUp 0.75s cubic-bezier(0.22, 1, 0.36, 1) both;
  }

  .promo-card-right {
    animation: fadeInUp 0.75s cubic-bezier(0.22, 1, 0.36, 1) 0.12s both;
  }

  .model-img {
    padding-top: 15px;
    max-height: 320px;
  }

  .btn-action {
    margin-top: -29px;
  }

  .footer-info {
    margin-top: 10px;
    padding-top: 25px;
    padding-bottom: 36px;
    padding-left: 16px;
    padding-right: 16px;
  }
}