body {
  margin: 0;
  height: 100vh;
  font-family: "Segoe UI", sans-serif;
  background: #000;
  overflow: hidden;
  color: #e0e0e0;
  display: flex;
  justify-content: center;
  align-items: center;
}
#particles-js {
  position: fixed;
  width: 100%;
  height: 100%;
  z-index: 0;
}
.login-box {
  position: relative;
  z-index: 2;
  background: rgba(15,15,15,0.9);
  border: 1px solid #00d08455;
  border-radius: 18px;
  box-shadow: 0 0 25px #00d08433;
  padding: 45px 40px 35px;
  width: 100%;
  max-width: 420px;
  text-align: center;
  animation: fadeInUp 0.8s ease;
  backdrop-filter: blur(8px);
}
.logo-circle {
  width: 95px; height: 95px;
  border-radius: 50%;
  background: radial-gradient(circle, #00d084, #00985c);
  color: #000; font-weight: 900; font-size: 32px;
  display: flex; justify-content: center; align-items: center;
  position: absolute; top: -47px; left: calc(50% - 47px);
  border: 3px solid #00ffcc;
  box-shadow: 0 0 25px #00ffcc88;
  text-shadow: 0 0 8px #00ffcc;
  font-family: "Segoe UI Black", sans-serif;
  animation: glowPulse 3s infinite alternate ease-in-out;
}
@keyframes glowPulse {
  0% { box-shadow: 0 0 25px #00ffcc55; transform: scale(1);}
  100% { box-shadow: 0 0 45px #00ffccaa; transform: scale(1.05);}
}
h2 { color: #00d084; margin-top: 60px; margin-bottom: 10px; }
.desc { font-size: 13px; color: #aaa; margin-bottom: 20px; }
input {
  width: 100%; padding: 10px 12px; margin-bottom: 15px;
  border-radius: 8px; border: 1px solid #222;
  background-color: #111; color: #fff;
  box-sizing: border-box; transition: 0.2s;
}
input:focus { border-color: #00d084; box-shadow: 0 0 6px #00d08455; outline: none; }
button {
  width: 100%; padding: 10px;
  background-color: #00d084; color: #000;
  font-weight: bold; border: none; border-radius: 8px;
  cursor: pointer; transition: 0.3s;
}
button:hover { background-color: #00a46c; transform: scale(1.03); }
.error {
  background-color: #2b0000; color: #ff8080;
  padding: 10px; border-radius: 8px; margin-bottom: 15px;
  box-shadow: 0 0 10px #ff000055;
  word-break: break-word;
}
.footer {
  text-align: center; color: #666; font-size: 12px; margin-top: 25px;
}
.footer span { color: #00d084; }
.links { margin-top: 10px; font-size: 13px; }
.links a { color: #00d084; text-decoration: none; margin: 0 6px; }
@keyframes fadeInUp { 0% {opacity:0;transform:translateY(40px);} 100% {opacity:1;transform:translateY(0);} }