/* ------------------------------------------------
   christoro.com - Aerial-inspired landing page
   ------------------------------------------------ */

/* Reset & Base */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  width: 100%;
  overflow: hidden;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Animated gradient background */
body {
  background: linear-gradient(
    135deg,
    #0a0a0f 0%,
    #1a1a2e 20%,
    #16213e 40%,
    #0f3460 60%,
    #1a1a2e 80%,
    #0a0a0f 100%
  );
  background-size: 400% 400%;
  animation: gradientShift 20s ease infinite;
}

@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  25%  { background-position: 100% 50%; }
  50%  { background-position: 100% 100%; }
  75%  { background-position: 0% 100%; }
  100% { background-position: 0% 50%; }
}

/* Overlay */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Content container */
.content {
  text-align: center;
  color: #fff;
  padding: 2rem;
  max-width: 600px;
  width: 100%;
}

/* Fade-in animation */
.content {
  opacity: 0;
  transform: translateY(18px);
  animation: fadeInUp 1.2s cubic-bezier(0.22, 1, 0.36, 1) 0.2s forwards;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Name heading */
h1 {
  font-size: 3rem;
  font-weight: 300;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
  color: rgba(255, 255, 255, 0.95);
}

/* Tagline */
.tagline {
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 2.2rem;
}

/* Divider line */
.divider {
  width: 60px;
  height: 1px;
  background: rgba(255, 255, 255, 0.25);
  margin: 0 auto 2rem;
}

/* Social icons row */
.social {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.6rem;
}

.social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  color: rgba(255, 255, 255, 0.65);
  text-decoration: none;
  transition: all 0.3s ease;
}

.social a:hover,
.social a:focus {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}

.social a svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* Staggered fade-in for social icons */
.social a {
  opacity: 0;
  animation: fadeIn 0.6s ease forwards;
}
.social a:nth-child(1) { animation-delay: 0.8s; }
.social a:nth-child(2) { animation-delay: 1.0s; }
.social a:nth-child(3) { animation-delay: 1.2s; }

@keyframes fadeIn {
  to { opacity: 1; }
}

/* Responsive */
@media (max-width: 600px) {
  h1 {
    font-size: 2rem;
    letter-spacing: 0.18em;
  }

  .tagline {
    font-size: 0.85rem;
    letter-spacing: 0.1em;
  }

  .social {
    gap: 1.2rem;
  }

  .social a {
    width: 40px;
    height: 40px;
  }

  .social a svg {
    width: 16px;
    height: 16px;
  }
}