/* style.css */
body {
  margin: 0;
  font-family: 'Montserrat', sans-serif;
  color: #fff;
  background: linear-gradient(180deg, #ff9a73 0%, #ea7e6f 50%, #df6d74 100%);
  overflow: hidden;
  position: relative;
}

/* Modern soft glow background */
.glow-bg {
  position: fixed;
  inset: 0;
  overflow: hidden;
  z-index: -1;
  background:
    linear-gradient(180deg,
      #4da3ff 0%,
      #3d7dff 45%,
      #5b5fff 100%);
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.45;
  animation: floatGlow 12s ease-in-out infinite;
}

.glow1 {
  width: 420px;
  height: 420px;
  background: #9fd4ff;
  top: -120px;
  left: -80px;
}

.glow2 {
  width: 500px;
  height: 500px;
  background: #7aa5ff;
  bottom: -180px;
  right: -120px;
  animation-delay: 2s;
}

.glow3 {
  width: 320px;
  height: 320px;
  background: #d8ecff;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: 4s;
}

@keyframes floatGlow {
  0% {
    transform: translateY(0px) scale(1);
  }

  50% {
    transform: translateY(-20px) scale(1.05);
  }

  100% {
    transform: translateY(0px) scale(1);
  }
}

/* Layout and card */
.container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  text-align: center;
}

:root {
  /* Fluid scale based on viewport width: 360px ? 0.9x, 1400px ? 1.12x */
  --scale: clamp(0.90, (100vw - 360px) / 1040, 1.12);
}

.card {
  background: rgba(29, 48, 105, 0.92);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 28px;
  padding: clamp(20px, 4vw, 44px);
  width: clamp(320px, 78vw, 560px);
  box-shadow:
    0 40px 90px rgba(0, 0, 0, .35),
    0 8px 16px rgba(0, 0, 0, .25);
  backdrop-filter: blur(4px);
  transform: scale(var(--scale));
  transform-origin: center;
  transition: transform 0.25s ease;
}

/* Fluid scaling replaces fixed breakpoints (desktop) */

/* Fluid scaling replaces fixed breakpoints (mobile) */

.title {
  margin-top: clamp(72px, 10vw, 96px);
  font-size: clamp(1.8rem, 4.5vw, 2.6rem);
  font-weight: 700;
}

.slogan {
  font-size: clamp(1rem, 2.6vw, 1.15rem);
  opacity: 0.9;
  margin-top: 4px;
  margin-bottom: clamp(14px, 2.2vw, 20px);
}

.logo {
  position: absolute;
  top: calc(-1 * clamp(60px, 8vw, 40px));
  left: 50%;
  transform: translateX(-50%);

  width: clamp(96px, 12vw, 140px);
  height: clamp(96px, 12vw, 140px);
  border-radius: 20px;

  background: rgba(17, 17, 17, 0.92);
  border: 2px solid rgba(120, 230, 255, 0.9);

  display: flex;
  align-items: center;
  justify-content: center;

  color: #ffffff;
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 700;
  letter-spacing: 2px;

  text-shadow:
    0 0 8px rgba(255, 255, 255, 0.9),
    0 0 18px rgba(0, 229, 255, 0.8),
    0 0 36px rgba(0, 229, 255, 0.45);

  box-shadow:
    0 0 8px rgba(255, 255, 255, 0.55),
    0 0 18px rgba(0, 229, 255, 0.55),
    0 0 38px rgba(0, 229, 255, 0.35),
    inset 0 0 18px rgba(0, 229, 255, 0.18);

  animation: logoGlow 2.4s ease-in-out infinite alternate;
}

@keyframes logoGlow {
  from {
    box-shadow:
      0 0 6px rgba(255, 255, 255, 0.45),
      0 0 14px rgba(0, 229, 255, 0.45),
      0 0 28px rgba(0, 229, 255, 0.25),
      inset 0 0 12px rgba(0, 229, 255, 0.12);
  }

  to {
    box-shadow:
      0 0 12px rgba(255, 255, 255, 0.75),
      0 0 28px rgba(0, 229, 255, 0.75),
      0 0 58px rgba(0, 229, 255, 0.45),
      inset 0 0 22px rgba(0, 229, 255, 0.24);
  }
}

.store-buttons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  padding: 30px 20px;
  flex-wrap: wrap;
}

.store-buttons img {
  height: 60px;
  transition: transform 0.2s ease;
}

.store-buttons img:hover {
  transform: scale(1.05);
}

footer {
  text-align: center;
  padding: 20px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
}