* {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }

      body {
        font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
        overflow-x: hidden;
        min-height: 100vh;
        background: linear-gradient(
          180deg,
          #89cff0 0%,
          #4a90e2 50%,
          #2c5aa0 100%
        );
        position: relative;
      }

      .stars {
        position: fixed;
        width: 100%;
        height: 100%;
        pointer-events: none;
        z-index: 1;
      }

      .star {
        position: absolute;
        width: 2px;
        height: 2px;
        background: white;
        border-radius: 50%;
        animation: twinkle 3s infinite ease-in-out;
      }

      @keyframes twinkle {
        0%,
        100% {
          opacity: 0.4;
        }
        50% {
          opacity: 1;
        }
      }

      .auth-container {
        min-height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 40px 20px;
        position: relative;
        z-index: 10;
      }

      .auth-card {
        width: 100%;
        max-width: 550px;
        background: rgba(255, 255, 255, 0.98);
        border-radius: 30px;
        box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
        overflow: hidden;
        animation: slideUp 0.6s ease-out;
      }

      @keyframes slideUp {
        from {
          opacity: 0;
          transform: translateY(40px);
        }
        to {
          opacity: 1;
          transform: translateY(0);
        }
      }

      .auth-header {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        padding: 50px 40px;
        text-align: center;
        position: relative;
        overflow: hidden;
      }

      .auth-header::before {
        content: "";
        position: absolute;
        top: -50%;
        left: -50%;
        width: 200%;
        height: 200%;
        background: radial-gradient(
          circle,
          rgba(255, 255, 255, 0.15) 0%,
          transparent 70%
        );
        animation: pulse 4s infinite;
      }

      @keyframes pulse {
        0%,
        100% {
          transform: scale(1);
          opacity: 0.5;
        }
        50% {
          transform: scale(1.1);
          opacity: 0.8;
        }
      }

      .auth-logo {
        width: 80px;
        /* height: 80px; */
        /* background: white; */
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 40px;
        margin: 0 auto 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        position: relative;
        z-index: 1;
      }

      .auth-title {
        color: white;
        font-size: 32px;
        font-weight: 700;
        letter-spacing: 2px;
        margin-bottom: 10px;
        position: relative;
        z-index: 1;
      }

      .auth-subtitle {
        color: rgba(255, 255, 255, 0.9);
        font-size: 16px;
        position: relative;
        z-index: 1;
      }

      .auth-form {
        padding: 40px;
      }

      .form-row {
        display: grid;
        grid-template-columns: 1fr;
        gap: 20px;
        margin-bottom: 25px;
      }

      .form-group {
        margin-bottom: 25px;
      }

      .form-label {
        display: block;
        font-size: 13px;
        font-weight: 600;
        color: #333;
        margin-bottom: 8px;
        text-transform: uppercase;
        letter-spacing: 0.5px;
      }

      .form-input-wrapper {
        position: relative;
      }

      .form-input-icon {
        position: absolute;
        left: 18px;
        top: 50%;
        transform: translateY(-50%);
        font-size: 18px;
        color: #667eea;
      }

      .form-input {
        width: 100%;
        padding: 16px 18px 16px 50px;
        border: 2px solid #e0e0e0;
        border-radius: 12px;
        font-size: 15px;
        font-family: inherit;
        transition: all 0.3s;
        background: #f8f9fa;
      }

      .form-input:focus {
        outline: none;
        border-color: #667eea;
        background: white;
        box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
      }

      .password-strength {
        margin-top: 8px;
        height: 4px;
        background: #e0e0e0;
        border-radius: 2px;
        overflow: hidden;
      }

      .password-strength-bar {
        height: 100%;
        width: 0%;
        background: #667eea;
        transition: all 0.3s;
      }

      .checkbox-wrapper {
        display: flex;
        align-items: flex-start;
        gap: 10px;
        margin-bottom: 25px;
      }

      .checkbox-wrapper input[type="checkbox"] {
        width: 18px;
        height: 18px;
        cursor: pointer;
        margin-top: 2px;
      }

      .checkbox-label {
        font-size: 14px;
        color: #666;
        line-height: 1.5;
      }

      .checkbox-label a {
        color: #667eea;
        text-decoration: none;
        font-weight: 600;
      }

      .submit-btn {
        width: 100%;
        padding: 18px;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        border: none;
        border-radius: 15px;
        font-size: 18px;
        font-weight: 700;
        letter-spacing: 1px;
        cursor: pointer;
        transition: all 0.3s;
        box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
        text-transform: uppercase;
      }

      .submit-btn:hover {
        transform: translateY(-3px);
        box-shadow: 0 15px 35px rgba(102, 126, 234, 0.4);
      }

      .submit-btn:active {
        transform: translateY(-1px);
      }

      .divider {
        display: flex;
        align-items: center;
        gap: 20px;
        margin: 25px 0;
      }

      .divider-line {
        flex: 1;
        height: 1px;
        background: #e0e0e0;
      }

      .divider-text {
        color: #999;
        font-size: 13px;
        font-weight: 600;
      }

      .social-buttons {
        display: flex;
        gap: 12px;
        margin-bottom: 25px;
      }

      .social-btn {
        flex: 1;
        padding: 14px;
        border: 2px solid #e0e0e0;
        border-radius: 12px;
        background: white;
        cursor: pointer;
        transition: all 0.3s;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        font-weight: 600;
        font-size: 13px;
      }

      .social-btn:hover {
        border-color: #667eea;
        background: #f8f9fa;
        transform: translateY(-2px);
      }

      .auth-footer {
        text-align: center;
        padding-bottom: 40px;
      }

      .auth-footer-text {
        color: #666;
        font-size: 15px;
      }

      .auth-link {
        color: #667eea;
        text-decoration: none;
        font-weight: 700;
        transition: all 0.3s;
      }

      .auth-link:hover {
        color: #5568d3;
        text-decoration: underline;
      }

      .back-btn {
        position: fixed;
        top: 30px;
        left: 30px;
        width: 50px;
        height: 50px;
        background: rgba(255, 255, 255, 0.95);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
        transition: all 0.3s;
        z-index: 100;
        text-decoration: none;
        color: #333;
        font-size: 24px;
      }

      .back-btn:hover {
        background: white;
        transform: scale(1.1);
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
      }

      @media (max-width: 600px) {
        .form-row {
          grid-template-columns: 1fr;
        }

        .auth-title {
          font-size: 23px;
        }
      }

      .logo-img {
        border-radius: 100%;
        width: 80px;
        height: auto;
        object-fit: cover;
        object-position: center;
      }