:root {
      --primary: #7c4dff;
      --primary-dark: #6a3ce8;
      --secondary: #00e5ff;
      --accent: #ff4081;
      --dark: #1a1a2e;
      --darker: #0f0f1a;
      --light: #f8f9fa;
      -webkit-user-select: none;
      -moz-user-select: none;
      -ms-user-select: none;
       user-select: none;
    }
    
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'Montserrat', sans-serif;
    }
    
    body {
      background: linear-gradient(135deg, var(--darker), var(--dark));
      color: var(--light);
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 20px;
    }
    
    .container {
      display: flex;
      max-width: 950px;
      width: 100%;
      height: 520px;
      background: rgba(255, 255, 255, 0.05);
      backdrop-filter: blur(15px);
      border-radius: 20px;
      overflow: hidden;
      box-shadow: 
        0 15px 35px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.15);
      position: relative;
    }
    
    .container::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 1px;
      background: linear-gradient(90deg, 
        transparent, 
        var(--primary), 
        var(--secondary), 
        transparent
      );
    }
    
    .left {
      flex: 1;
      padding: 35px;
      background: linear-gradient(135deg, 
        rgba(124, 77, 255, 0.2), 
        rgba(26, 26, 46, 0.95)
      );
      display: flex;
      flex-direction: column;
      justify-content: center;
      position: relative;
      overflow: hidden;
    }
    
    .left::after {
      content: '';
      position: absolute;
      top: -50%;
      right: -50%;
      width: 100%;
      height: 100%;
      background: radial-gradient(
        circle at 30% 50%,
        rgba(124, 77, 255, 0.15) 0%,
        transparent 60%
      );
      z-index: 0;
    }
    
    .left-content {
      position: relative;
      z-index: 1;
    }
    
    .left-content h1 {
      font-size: 1.9rem;
      margin-bottom: 18px;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      line-height: 1.3;
    }
    
    .left-content p {
      font-size: 0.92rem;
      line-height: 1.5;
      margin-bottom: 25px;
      color: rgba(255, 255, 255, 0.85);
    }
    
    .features-dark ul {
      list-style: none;
    }
    
    .features-dark li {
      padding: 10px 0;
      font-size: 0.88rem;
      display: flex;
      align-items: center;
      transition: transform 0.3s ease;
    }
    
    .features-dark li:hover {
      transform: translateX(8px);
    }
    
    .features-dark i {
      color: var(--secondary);
      margin-right: 12px;
      font-size: 1.1rem;
      width: 24px;
      height: 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(0, 229, 255, 0.1);
      border-radius: 6px;
    }
    
    .right {
      flex: 1;
      padding: 35px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(26, 26, 46, 0.8);
      position: relative;
    }
    
    .right::before {
      content: '';
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 1px;
      height: 80%;
      background: linear-gradient(
        to bottom,
        transparent,
        rgba(255, 255, 255, 0.1),
        transparent
      );
    }
    
    .login-box {
      width: 100%;
      max-width: 320px;
    }
    
    .login-box h2 {
      font-size: 1.6rem;
      margin-bottom: 25px;
      text-align: center;
      color: var(--light);
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
    }
    
    .login-box h2 i {
      color: var(--primary);
      background: rgba(124, 77, 255, 0.1);
      padding: 10px;
      border-radius: 10px;
    }
    
    .input-group {
      margin-bottom: 18px;
      position: relative;
    }
    
    .input-group input {
      width: 100%;
      padding: 14px 15px 14px 50px;
      border: none;
      background: rgba(255, 255, 255, 0.08);
      border-radius: 10px;
      color: var(--light);
      font-size: 0.92rem;
      transition: all 0.3s ease;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .input-group input:focus {
      outline: none;
      background: rgba(255, 255, 255, 0.12);
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(124, 77, 255, 0.2);
    }
    
    .input-group input::placeholder {
      color: rgba(255, 255, 255, 0.5);
    }
    
    .input-group i {
      position: absolute;
      left: 18px;
      top: 50%;
      transform: translateY(-50%);
      color: rgba(255, 255, 255, 0.7);
      font-size: 1.1rem;
    }
    
    .btn {
      width: 100%;
      padding: 14px;
      background: linear-gradient(90deg, var(--primary), var(--primary-dark));
      border: none;
      border-radius: 10px;
      color: white;
      font-size: 0.95rem;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s ease;
      margin-top: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      box-shadow: 0 4px 15px rgba(124, 77, 255, 0.3);
    }
    
    .btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(124, 77, 255, 0.4);
    }
    
    .btn:active {
      transform: translateY(0);
    }
    
    .options {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-top: 18px;
      font-size: 0.82rem;
    }
    
    .options label {
      display: flex;
      align-items: center;
      color: rgba(255, 255, 255, 0.7);
      cursor: pointer;
      gap: 6px;
    }
    
    .options input[type="checkbox"] {
      accent-color: var(--primary);
      transform: scale(1.1);
    }
    
    .options a {
      color: var(--secondary);
      text-decoration: none;
      font-weight: 600;
      transition: color 0.3s ease;
    }
    
    .options a:hover {
      color: var(--accent);
    }
    
    .security-badge {
      display: flex;
      align-items: center;
      justify-content: center;
      margin-top: 25px;
      padding: 10px;
      background: rgba(0, 230, 118, 0.1);
      border-radius: 8px;
      border: 1px solid rgba(0, 230, 118, 0.25);
      font-size: 0.78rem;
      animation: pulse 2s infinite;
    }
    
    .security-badge i {
      color: #00e676;
      margin-right: 8px;
    }
    
    @keyframes pulse {
      0% { box-shadow: 0 0 0 0 rgba(0, 230, 118, 0.4); }
      70% { box-shadow: 0 0 0 6px rgba(0, 230, 118, 0); }
      100% { box-shadow: 0 0 0 0 rgba(0, 230, 118, 0); }
    }
    
    #forgotBox {
      display: none;
    }
    
    .back-btn {
      color: var(--secondary);
      text-decoration: none;
      font-size: 0.85rem;
      display: inline-block;
      margin-top: 12px;
      text-align: center;
      width: 100%;
      font-weight: 600;
      transition: color 0.3s ease;
    }
    
    .back-btn:hover {
      color: var(--accent);
    }

    /* Responsive */
    @media (max-width: 768px) {
      .container {
        flex-direction: column;
        height: auto;
        max-width: 450px;
      }
      
      .left, .right {
        padding: 30px;
      }
      
      .right::before {
        display: none;
      }
    }