:root {
  --bg-dark: #0d0d12;
  --box-bg: #1a1a24;
  --text-light: #e0e0e0;
  --neon-purple: #db52fd;
  --neon-blue: #8200df;
}

body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: var(--bg-dark);
  color: var(--text-light);
}

.btn-back-home {
  position: fixed;
  top: 25px;
  left: 25px;
  padding: 10px 18px;
  background: var(--box-bg);
  color: #fff;
  border: 2px solid var(--neon-purple);
  border-radius: 20px;
  cursor: pointer;
  font-size: 14px;
  letter-spacing: 1px;
  transition: 0.3s ease;
  animation: neonRun 3s linear infinite;
  z-index: 1000;
}

.btn-back-home:hover {
  background: var(--neon-purple);
  color: black;
  box-shadow: 0 0 20px var(--neon-purple),
              0 0 40px var(--neon-purple);
}

.contact-hero {
  height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background:
    linear-gradient(rgba(88, 88, 99, 0.85), rgba(13, 13, 18, 0.85)),
    url("zbuilding12.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.contact-hero h1 {
  font-size: 4rem;
  font-weight: 800;
  background: linear-gradient(90deg, var(--neon-purple), var(--neon-blue), var(--neon-purple));
  background-size: 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: rgbMove 4s linear infinite;
}

.contact-header {
  text-align: center;
  padding: 80px 20px 40px;
  max-width: 1000px;
  margin: auto;
}

.contact-header h1 {
  font-size: 36px;
  margin-bottom: 10px;
  font-weight: 600;
  text-shadow: 0 0 10px var(--neon-purple);
}

.contact-header h2 {
  font-size: 22px;
  font-weight: 400;
  color: var(--neon-purple);
  margin-bottom: 20px;
}

.contact-header h2::after {
  content: "";
  display: block;
  width: 120px;
  height: 2px;
  background: linear-gradient(to right, var(--neon-purple), var(--neon-blue));
  margin: 20px auto 0;
}

.contact-header .detail {
  font-size: 16px;
  line-height: 1.8;
  color: #cbd5e1;
}

.contact-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 30px;
  max-width: 1000px;
  margin: 60px auto 100px;
  padding: 0 20px;
  text-align: center;
}

.info-box {
  background: var(--box-bg);
  padding: 30px;
  border-radius: 12px;
  border: 1px solid #2a2a35;
  transition: 0.3s ease;
  position: relative;
  overflow: hidden;
}

.info-box::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 12px;
  padding: 2px;
  background: linear-gradient(
    90deg,
    var(--neon-purple),
    var(--neon-blue),
    var(--neon-purple)
  );
  background-size: 300% 300%;
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
}

.info-box:hover::before {
  opacity: 1;
  animation: rgbMove 3s linear infinite;
}

.info-box:hover {
  transform: translateY(-6px);
  border-color: var(--neon-purple);
  box-shadow: 0 0 25px rgba(184, 41, 255, 0.4);
}

.info-box h3 {
  font-size: 18px;
  margin-bottom: 15px;
  color: var(--neon-purple);
}

.info-box p {
  margin: 8px 0;
  color: #cbd5e1;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.info-box a {
  word-break: break-all;
  color: var(--neon-blue);
}

.full-line {
  border: none;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--neon-purple), transparent);
  width: 100%;
  margin: 80px 0;
}

@keyframes rgbMove {
  0% { background-position: 0% }
  100% { background-position: 300% }
}

@keyframes neonRun {
  0% {
    border-color: var(--neon-purple);
    box-shadow: 0 0 5px var(--neon-purple);
  }
  50% {
    border-color: var(--neon-blue);
    box-shadow: 0 0 15px var(--neon-blue);
  }
  100% {
    border-color: var(--neon-purple);
    box-shadow: 0 0 5px var(--neon-purple);
  }
}

@media (max-width:768px){

.contact-hero{
  height:auto;
  padding:80px 20px;
}

.contact-hero h1{
  font-size:2rem;
}

.contact-header{
  padding:60px 20px 30px;
}

.contact-header h1{
  font-size:26px;
}

.contact-header h2{
  font-size:18px;
}

.contact-header .detail{
  font-size:14px;
}

.contact-info-grid{
  gap:20px;
  margin:40px auto 80px;
}

.info-box{
  padding:20px;
}

.info-box h3{
  font-size:16px;
}

.info-box p{
  font-size:14px;
}

.btn-back-home{
  top:15px;
  left:15px;
  font-size:12px;
  padding:8px 14px;
}

}