:root {
  --bg: #ffffff;
  --panel: #ffffff;
  --text: #111827;
  --muted: #6b7280;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  padding: 24px;
  overflow: hidden;
  position: relative;
}

body::before,
body::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.25;
  animation: float 10s ease-in-out infinite;
  pointer-events: none;
}

body::before {
  width: 320px;
  height: 320px;
  background: #f59e0b;
  top: -80px;
  left: -80px;
}

body::after {
  width: 360px;
  height: 360px;
  background: #3b82f6;
  right: -120px;
  bottom: -120px;
  animation-delay: 2s;
}

@keyframes float {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  50% {
    transform: translate3d(20px, -30px, 0) scale(1.05);
  }
}

.hero {
  width: min(90vw, 520px);
  min-height: 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px;
  background: var(--panel);
}

.logo-box {
  width: min(100%, 280px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: transparent;
  margin-bottom: 20px;
}

.logo-box img {
  width: 100%;
  height: auto;
  max-width: 320px;
}

.logo-text {
  margin-top: 18px;
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  letter-spacing: 0.05em;
  color: var(--text);
  font-weight: 600;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  color: var(--text);
  text-decoration: none;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.social-links a:hover {
  background-color: #f3f4f6;
  transform: translateY(-1px);
}

.social-links svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.title {
  font-size: clamp(1.2rem, 3vw, 1.6rem);
  margin: 0 0 8px;
  font-weight: 700;
}

.subtitle {
  margin: 0;
  font-size: clamp(0.95rem, 2vw, 1rem);
  color: var(--muted);
}

@media (max-width: 600px) {
  .hero {
    min-height: 360px;
    padding: 24px 20px;
  }

  .logo-box {
    width: min(100%, 220px);
  }

  .logo-box img {
    max-width: 280px;
  }
}