@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Poppins', sans-serif;
    height: 100vh;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364); /* Deep ocean blue */
    overflow: hidden;
  }
  
  /* Animated background blobs biru */
  body::before,
  body::after {
    content: '';
    position: absolute;
    width: 700px;
    height: 700px;
    border-radius: 50%;
    filter: blur(130px);
    opacity: 0.35;
    animation: float 25s infinite linear;
  }
  body::before {
    background: #00d9ff;
    top: -300px;
    left: -300px;
  }
  body::after {
    background: #007cff;
    bottom: -300px;
    right: -300px;
    animation-delay: -12s;
  }
  
  @keyframes float {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(120px, 80px) rotate(360deg); }
  }
  
  .login-card {
    position: relative;
    width: 380px;
    padding: 50px 40px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    overflow: hidden;
  }

/* LOGO DI TENGAH SEMPURNA */
  .logo{
    display:block;
    width:160px;                     /* sesuaikan ukuran logo kamu */
    height:auto;
    margin:0 auto 30px auto;         /* tengah horizontal + jarak bawah */
    filter:drop-shadow(0 0 30px rgba(0,180,255,0.6));
    animation:logoFloat 6s ease-in-out infinite;
  }

  @keyframes logoFloat{
    0%,100%{transform:translateY(0);}
    50%{transform:translateY(-10px);}
  }
  
  .login-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(0, 200, 255, 0.15), transparent);
    transform: rotate(45deg);
    animation: shine 8s infinite;
    pointer-events: none;
  }
  
  @keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    50% { transform: translateX(100%) translateY(100%) rotate(45deg); }
    100% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
  }
  
  h2 {
    text-align: center;
    font-size: 2.6rem;
    color: #fff !important;
    margin-bottom: 8px;
    font-weight: 700;
    text-shadow: 0 0 30px rgba(0, 180, 255, 0.6);
  }
  

  p {
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    font-size: 1rem;
  }
  
  .input-group {
    position: relative;
    margin-bottom: 32px;
  }
  
  input {
    width: 100%;
    padding: 18px 20px;
    border: none;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    font-size: 1.05rem;
    transition: all 0.4s;
  }
  
  input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 25px rgba(0, 180, 255, 0.4);
    transform: scale(1.03);
  }
  
  input::placeholder {
    color: transparent;
  }
  
  label {
    position: absolute;
    left: 20px;
    top: 18px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.05rem;
    pointer-events: none;
    transition: 0.4s;
  }
  
  input:focus ~ label,
  input:valid ~ label {
    top: -12px;
    left: 18px;
    font-size: 0.85rem;
    background: linear-gradient(135deg, #007cff, #00d9ff);
    padding: 4px 12px;
    border-radius: 20px;
    color: #fff;
    font-weight: 600;
  }
  
  /* Tombol biru glowing */
  button {
    width: 100%;
    padding: 18px;
    border: none;
    border-radius: 14px;
    background: linear-gradient(135deg, #007cff, #00d9ff);
    color: #fff;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.4s;
    box-shadow: 0 10px 30px rgba(0, 124, 255, 0.4);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 1px;
  }
  
  button:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 124, 255, 0.6);
  }
  
  button:active {
    transform: translateY(-2px);
  }