body {
  font-family: 'Poppins', sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;

  /* Premium dark gradient background */
  background: radial-gradient(circle at 20% 30%, #1e293b, #0f172a 60%),
              radial-gradient(circle at 80% 70%, #1e3a8a33, transparent 60%),
              #0f172a;

  position: relative;
  overflow: hidden;
}
/* soft animated glow in background */
body::before {
  content: "";
  position: absolute;
  width: 600px;
  height: 600px;
  background: #3b82f6;
  filter: blur(180px);
  opacity: 0.15;
  top: -100px;
  left: -100px;
  z-index: 0;
}

.login-box {
  position: relative;
  z-index: 1;
}


.login-box {
  background: #1e293b;
  padding: 45px;
  border-radius: 12px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 25px 60px rgba(0,0,0,.4);
  border: 1px solid #334155;
}

h2 {
  text-align: center;
  margin-bottom: 30px;
  color: #3b82f6;
  letter-spacing: 1px;
}

input {
  width: 100%;
  padding: 14px;
  margin-bottom: 20px;
  border-radius: 8px;
  border: 2px solid #334155;
  background: #0f172a;
  color: #ffffff;
  font-size: 15px;
  transition: 0.3s;
}

input::placeholder {
  color: #94a3b8;
}

input:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 10px rgba(59,130,246,.5);
}

button {
  width: 100%;
  padding: 14px;
  border-radius: 8px;
  border: none;
  background: #3b82f6;
  color: #fff;
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  background: #2563eb;
  transform: translateY(-2px);
}

.error {
  color: #f87171;
  text-align: center;
  margin-top: 15px;
}










.screen{
  display:flex;
  width:100%;
  min-height:100vh;
}

.left-panel{
  flex:1;
  background:#1e293b;
  color:white;
  padding:80px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}

.left-panel h1{
  font-size:40px;
  color:#3b82f6;
  margin-bottom:20px;
}

.left-panel ul{
  margin-top:30px;
  line-height:2;
}

.right-panel{
  flex:1;
  display:flex;
  align-items:center;
  justify-content:center;
}
/* ========== MOBILE RESPONSIVE ========== */
@media (max-width: 900px) {

  .screen{
    flex-direction: column;
  }

  .left-panel{
    padding: 40px 25px;
    text-align: center;
  }

  .left-panel h1{
    font-size: 28px;
  }

  .left-panel p{
    font-size: 15px;
  }

  .left-panel ul{
    margin-top: 20px;
    padding-left: 0;
    list-style: none;
  }

  .right-panel{
    padding: 30px 20px 60px;
  }

  .login-box{
    width: 100%;
    max-width: 100%;
    padding: 30px 25px;
  }
}