* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Roboto', sans-serif;
            -webkit-tap-highlight-color: transparent;
        }

        html, body {
            width: 100%;
            height: 100%;
            overflow: hidden;
            -webkit-text-size-adjust: 100%;
            -ms-text-size-adjust: 100%;
            text-size-adjust: 100%;
        }

        body {
            background: #0e1621;
            color: #e6e6e6;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
            touch-action: manipulation;
        }

        .auth-container {
            width: 100%;
            max-width: 380px;
            background: #17212b;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            border: 1px solid #242f3d;
        }

        .auth-header {
            text-align: center;
            margin-bottom: 30px;
        }

        .auth-header i {
            font-size: 54px;
            color: #5288c1;
            margin-bottom: 15px;
            display: block;
        }

        .auth-header h1 {
            font-size: 24px;
            font-weight: 600;
            color: #e6e6e6;
            margin-bottom: 8px;
        }

        .auth-header p {
            font-size: 15px;
            color: #7f91a4;
        }

        .auth-form {
            width: 100%;
        }

        .error-text {
            color: #ff6b6b;
            font-size: 14px;
            margin-bottom: 15px;
            padding: 10px;
            background: rgba(255, 107, 107, 0.1);
            border-radius: 8px;
            border-left: 3px solid #ff6b6b;
            display: none;
        }

        .form-group {
            margin-bottom: 20px;
            position: relative;
        }

        .form-input {
            width: 100%;
            height: 48px;
            padding: 0 15px 0 45px;
            background: #242f3d;
            border: 1px solid transparent;
            border-radius: 10px;
            color: #e6e6e6;
            font-size: 15px;
            outline: none;
            transition: all 0.3s ease;
        }

        .form-input:focus {
            border-color: #5288c1;
            box-shadow: 0 0 0 2px rgba(82, 136, 193, 0.2);
        }

        .form-input::placeholder {
            color: #7f91a4;
        }

        .input-icon {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: #7f91a4;
            font-size: 16px;
        }

        .form-input:focus + .input-icon {
            color: #5288c1;
        }

        .submit-btn {
            width: 100%;
            height: 48px;
            background: #5288c1;
            border: none;
            border-radius: 10px;
            color: white;
            font-size: 16px;
            font-weight: 500;
            cursor: pointer;
            transition: background 0.3s ease;
            margin-top: 10px;
        }

        .submit-btn:hover {
            background: #4676b1;
        }

        .auth-links {
            text-align: center;
            margin-top: 25px;
            padding-top: 20px;
            border-top: 1px solid #242f3d;
        }

        .auth-links p {
            color: #7f91a4;
            font-size: 14px;
            margin-bottom: 15px;
        }

        .register-link {
            color: #5288c1;
            text-decoration: none;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 6px;
            transition: background 0.3s ease;
        }

        .register-link:hover {
            background: rgba(82, 136, 193, 0.1);
        }

        @media (max-width: 480px) {
            .auth-container {
                padding: 25px 20px;
            }
            
            .auth-header i {
                font-size: 48px;
            }
            
            .auth-header h1 {
                font-size: 22px;
            }
            
            .form-input {
                height: 44px;
                font-size: 14px;
            }
            
            .submit-btn {
                height: 44px;
                font-size: 15px;
            }
        }