:root {
      --primary: #3a86ff;
      --accent: #ff006e;
      --text-gradient: linear-gradient(90deg, #3a86ff, #ff006e);
      --card-bg: rgba(10, 10, 15, 0.8);
      --dark-bg: #000000;
      --darker-bg: #050505;
      --input-bg: rgba(255,255,255,0.05);
      --text-muted: rgba(255,255,255,0.6);
      --error: #ff3333;
      --success: #4BB543;
    }
    
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    body {
      font-family: 'Plus Jakarta Sans', sans-serif;
      background: var(--dark-bg);
      color: white;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 100vh;
      padding: 20px;
    }
    
    .container {
      width: 100%;
      max-width: 420px;
      animation: fadeIn 0.5s ease-out;
    }
    
    .card {
      background: var(--card-bg);
      border-radius: 16px;
      padding: 40px;
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255,255,255,0.1);
      transition: all 0.3s ease;
    }
    
    .card:hover {
      border-color: rgba(58, 134, 255, 0.3);
    }
    
    .logo {
      width: 60px;
      height: 60px;
      margin: 0 auto 25px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--text-gradient);
      border-radius: 16px;
      font-weight: 800;
      font-size: 24px;
      color: #000;
    }
    
    h2 {
      text-align: center;
      margin-bottom: 8px;
      font-size: 1.8rem;
      background: var(--text-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    
    .subtext {
      text-align: center;
      color: var(--text-muted);
      margin-bottom: 30px;
      font-size: 0.95rem;
      line-height: 1.5;
    }
    
    .form-group {
      margin-bottom: 20px;
      position: relative;
    }
    
    input {
      width: 100%;
      padding: 14px 16px;
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 10px;
      background: var(--input-bg);
      color: white;
      font-family: 'Plus Jakarta Sans', sans-serif;
      font-size: 0.95rem;
      transition: all 0.3s;
    }
    
    input:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 2px rgba(58, 134, 255, 0.2);
    }
    
    input::placeholder {
      color: rgba(255,255,255,0.4);
    }
    
    button {
      width: 100%;
      padding: 14px;
      border: none;
      border-radius: 10px;
      font-family: 'Plus Jakarta Sans', sans-serif;
      font-weight: 600;
      font-size: 1rem;
      cursor: pointer;
      transition: all 0.3s;
      margin-top: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    
    .btn-primary {
      background: var(--text-gradient);
      color: #000;
    }
    
    .btn-primary:hover {
      transform: translateY(-2px);
      background: linear-gradient(90deg, #2a76e6, #e60063);
    }
    
    .btn-primary.loading {
      opacity: 0.8;
      pointer-events: none;
    }
    
    .btn-primary.loading::after {
      content: "";
      width: 16px;
      height: 16px;
      border: 3px solid rgba(0,0,0,0.2);
      border-top-color: #000;
      border-radius: 50%;
      margin-left: 10px;
      animation: spin 1s linear infinite;
    }
    
    .link-text {
      text-align: center;
      margin-top: 20px;
      font-size: 0.9rem;
      color: var(--text-muted);
      cursor: pointer;
    }
    
    .link-text a {
      color: var(--primary);
      text-decoration: none;
      font-weight: 500;
      position: relative;
    }
    
    .link-text a::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 0;
      height: 1px;
      background: var(--primary);
      transition: width 0.3s;
    }
    
    .link-text a:hover::after {
      width: 100%;
    }
    
    .back {
      color: var(--primary);
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      margin-bottom: 25px;
      font-weight: 500;
      transition: all 0.3s;
    }
    
    .back:hover {
      color: var(--accent);
    }
    
    .back svg {
      margin-right: 8px;
    }
    
    .hidden {
      display: none;
    }
    
    /* Google button styles */
    .btn-google {
      display: flex;
      align-items: center;
      justify-content: center;
      background: white;
      color: #444;
      margin-bottom: 15px;
      border: 1px solid rgba(255,255,255,0.2);
    }
    
    .btn-google:hover {
      background: #f5f5f5;
      transform: translateY(-2px);
    }
    
    .btn-google.loading {
      opacity: 0.8;
      pointer-events: none;
    }
    
    .btn-google.loading::after {
      content: "";
      width: 16px;
      height: 16px;
      border: 3px solid rgba(0,0,0,0.2);
      border-top-color: #444;
      border-radius: 50%;
      margin-left: 10px;
      animation: spin 1s linear infinite;
    }
    
    .social-icon {
      width: 18px;
      height: 18px;
      margin-right: 10px;
    }
    
    .divider {
      display: flex;
      align-items: center;
      margin: 20px 0;
      color: var(--text-muted);
      font-size: 0.8rem;
    }
    
    .divider::before, .divider::after {
      content: "";
      flex: 1;
      border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    .divider::before {
      margin-right: 10px;
    }
    
    .divider::after {
      margin-left: 10px;
    }
    
    .forgot-password {
      text-align: right;
      margin: -10px 0 15px;
    }
    
    .forgot-password a {
      color: var(--text-muted);
      font-size: 0.85rem;
      text-decoration: none;
      transition: color 0.3s;
    }
    
    .forgot-password a:hover {
      color: var(--primary);
    }
    
    /* Message styles */
    .message {
      padding: 12px 16px;
      border-radius: 8px;
      margin-bottom: 20px;
      font-size: 0.9rem;
      text-align: center;
      animation: fadeIn 0.3s ease-out;
    }
    
    .error-message {
      background-color: rgba(255, 51, 51, 0.1);
      border: 1px solid var(--error);
      color: var(--error);
    }
    
    .success-message {
      background-color: rgba(75, 181, 67, 0.1);
      border: 1px solid var(--success);
      color: var(--success);
    }
    
    /* Animations */
    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(10px); }
      to { opacity: 1; transform: translateY(0); }
    }
    
    @keyframes spin {
      to { transform: rotate(360deg); }
    }
    
    /* Responsive adjustments */
    @media (max-width: 480px) {
      .card {
        padding: 30px 25px;
      }
      
      h2 {
        font-size: 1.5rem;
      }
    }